Entries |
Document | Title | Date |
20080208475 | DRILLING COLLABORATION INFRASTRUCTURE - Methods and systems facilitate collaboration between users at an oil well site and users at a remote location. Multiple types of oil well data are collected at the oil well site to form aggregated data. The aggregated data is stored in a data aggregation server at the oil well site. Users at the oil well site and users at the remote location are allowed to access the aggregated data on the data aggregation server using a standard data format. | 08-28-2008 |
20080208476 | SYSTEM AND METHOD FOR WATERFLOOD PERFORMANCE MONITORING - Method, system and computer program product for controlling a production/injection operation for an oilfield, the oilfield having a first wellsite with a producing well advanced into subterranean formations with geological structures and reservoirs therein. Data from a plurality of data sources is collected with respect to a production/injection operation, wherein the collected data includes oil production data and fluid injection data. The collected data is stored in a database. Extracted data relating to a selected performance parameter to be monitored is extracted from the database, the extracted data is processed, and a graphical representation of the processed data is dynamically displayed to enable monitoring of the selected performance parameter. | 08-28-2008 |
20080221796 | Vector Migration of 1st Order Free-Surface Related Downgoing Multiples from VSP Data | 09-11-2008 |
20080262735 | System and Method for Water Breakthrough Detection and Intervention in a Production Well - A system and method for estimating an occurrence of a water breakthrough in a production well is provided that includes estimating, at least periodically, a measure of water in the fluid produced from one or more production zones and estimating the occurrence of the water breakthrough utilizing at least in part a trend of the estimated measures of the produced fluid. A controller determines one or more actions to be taken to mitigate an effect of the water breakthrough and may automatically initiate one or more such actions. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. | 10-23-2008 |
20080270032 | Induction Tool for Detail Evaluation of Near Borehole Zone - Measurements made with an induction logging tool are processed to provide a resistivity model of fluid invasion of the formation. Up to five zones can be determined over a radial distance of about 0.6 m. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. | 10-30-2008 |
20080281524 | Method and Apparatus for Deriving a Calibration Filter for Electromagnetic Data - A method of deriving a calibration filter for electromagnetic data is provided. The method comprises providing a source ( | 11-13-2008 |
20080294343 | Gravity zaimuth measurement at a non-rotting housing - Aspects of this invention include methods for surveying a subterranean borehole. In one exemplary aspect, a change in borehole azimuth between first and second longitudinally spaced gravity measurement sensors may be determined directly from gravity measurements made by the sensors and a measured angular position between the sensors. The gravity measurement sensors are typically disposed to rotate freely with respect to one another about a longitudinal axis of the borehole. Gravity MWD measurements in accordance with the present invention may be advantageously made without imposing any relative rotational constraints on first and second gravity sensor sets. The present invention also advantageously provides for downhole processing of the change in azimuth between the first and second gravity sensor sets. As such, Gravity MWD measurements in accordance with this invention may be advantageously utilized in closed-loop steering control methods. | 11-27-2008 |
20080294344 | Angular position sensor for a downhole tool - Aspects of this invention include a downhole tool having an angular position sensor disposed to measure the relative angular position between first and second members disposed to rotate about a common axis. A plurality of magnetic field sensors are deployed about the second member and disposed to measure magnetic flux emanating from first and second magnets deployed on the first member. A controller is programmed to determine the relative angular position based on magnetic measurements made by the magnetic field sensors. In a one exemplary embodiment, a downhole steering tool includes first and second magnets circumferentially spaced on the shaft and a plurality of magnetic field sensors deployed about the housing. | 11-27-2008 |
20080300791 | Azimuthal Measurement-While-Drilling (MWD) Tool - Various systems and methods determine a distance, magnitude, and azimuthal angle describing the location of an anomaly within a geologic formation. For example, a method involves identifying an electrical characteristic (e.g., resistivity or conductivity) at each of several sensors in a measurement-while-drilling (MWD) tool. Based on the electrical characteristic, information identifying a formation property of the anomaly is generated. The information includes at least one magnitude and at least one distance. Information information identifying an azimuthal angle is also generated based upon the electrical characteristic. The azimuthal angle relates a position of the anomalous formation to a position of a first sensor in the MWD tool. | 12-04-2008 |
20080319674 | MULTI-ATTRIBUTE SEISMIC CHARACTERIZATION OF GAS HYDRATES - An appropriate rock physics model is chosen from well-log data and/or experience. The rock physics model is then used to generate a plurality of attribute values, including compression and shear velocities, at different porosities and gas hydrate saturations. Gas hydrates are classified into different ranges of porosity and hydrate saturation based on the population of multiple attributes, and probability density functions for each individual gas hydrate class are created. Probability density distribution functions for individual attributes and a joint conditional probability density functions are created using a Bayesian function. The conditional probability of the occurrences of gas hydrate classes given a set of values of the chosen attributes derived from seismic inversion and or well measurements is inverted. Finally, a maximum a-posteriori (MAP) rule is employed to obtain the optimal porosity and hydrate saturation estimation. This information may be used to make decisions regarding management of the well site and the subsurface hydrate resources. | 12-25-2008 |
20090005991 | Method for Initializing Receiver Channels in a Cement Bond Logging Tool - A method for initializing the input of each of m receiver channels of a receiving transducer in a well logging tool comprising the steps of selecting a logging tool having a multi-element receiving transducer wherein each element of the multi-element receiving transducer operates in an anti-resonant mode below its resonant frequency, and executing a routine in an initialization mode wherein a predetermined number of run cycles are operated and receiver input responses are measured and averaged for each of the m channels while transmitter fixing signals are disabled. | 01-01-2009 |
20090012710 | Device and Method of Measuring Depth and Azimuth - A method of measuring depth and/or azimuth of logging data, the logging data being related to at least one property of a zone GF, CS, CA surrounding a wellbore and being measured by at least a sensor array SA | 01-08-2009 |
20090030614 | METHOD, SYSTEM AND APPARATUS FOR FORMATION TESTER DATA PROCESSING - A method for data processing includes transforming measurement data acquired in the time domain during an oilfield operation into a second domain to produce transformed data; identifying distortions in the transformed data; removing the distortions from the transformed data; and transforming back from the second domain to the time domain to produce cleaned-up data. The transforming measurement data may use a Fourier transform or a wavelet transform. The method may further include compressing the cleaned-up data or reconstructing signals from the cleaned-up data. A method for data processing includes decomposing measurement data, which are acquired in an oilfield operation, using a low pass filter to produce a first dataset; decomposing the measurement data using a high pass filter to produce a second dataset; removing distortions from the second dataset to yield a corrected second dataset; and reconstructing a corrected dataset from the first dataset and the corrected second dataset. | 01-29-2009 |
20090043507 | METHOD AND SYSTEM FOR DYNAMIC, THREE-DIMENSIONAL GEOLOGICAL INTERPRETATION AND MODELING - Techniques and a system for performing geological interpretation operations in support of energy resources exploration and production perform well log correlation operations for generating a set of graphical data describing the predetermined geological region. The process and system interpret the geological environment of the predetermined geological region from measured surface and fault data associated with the predetermined geological region. Allowing the user to query and filter graphical data representing the predetermined geological region, the method and system present manipulable three-dimensional geological interpretations of two-dimensional geological data relating to the predetermined geological region and provide displays of base map features associated with the predetermined geological region. The method and system automatically update the manipulable three-dimensional geological interpretations of two-dimensional data relating to the predetermined geological region, as well as calculate three-dimensional well log and seismic interpretations of geological data relating to the predetermined geological region. | 02-12-2009 |
20090043508 | ELECTROMAGNETIC SURVEYING FOR HYDROCARBON RESERVOIRS - A method of electromagnetic surveying of an area of seafloor that is thought or known to contain a subterranean hydrocarbon reservoir is described. The method includes broadcasting an EM signal from a horizontal electric dipole (HED) transmitter and obtaining vertical electric dipole (VED) response data at a remote receiver in response thereto. Survey data are analysed by comparing the VED response data with background data which are not sensitive to the postulated hydrocarbon reservoir. Accordingly, differences between the VED response data and the background data allow for the identification of buried hydrocarbon reservoirs. The background data may be provided by magneto-telluric surveying, controlled source electromagnetic surveying or from direct geophysical measurement. By employing VED response data in this way, surveys may be performed in shallower water than has previously been possible since the VED detector is not sensitive to air-wave components of the EM field induced by the HED transmitter at the VED detector. | 02-12-2009 |
20090055097 | AUTOMATED BOREHOLE IMAGE INTERPRETATION - A method of analyzing characteristics of a subterranean formation includes transmitting a signal at least partially into a material of the subterranean formation such that the signal is transformed in a manner indicative of a characteristic of the material, receiving the transformed signal from the material, converting the transformed signal into image data indicative of the characteristic of the material, applying a first set of machine executable rules to the image data to produce segmented image data, wherein portions of the image that are sufficiently related according to the applied rules are grouped into segments, and analyzing, according to a second set of machine executable rules, the segmented image data to produce a geological profile of the subterranean formation. | 02-26-2009 |
20090063054 | Method and System for Controlling a Well Service Rig Based on Load Data - The present invention is directed to methods for controlling the operations of a well service rig at a well site by evaluating load sensor data obtained from sensors on or associated with the well service rig. A rig load data chart can be reviewed and an average rig load can be determined for each pull of tubing or rods from a well. The average rig load can be used to calculate and set a rig overload level. If the rig load sensor reads a rig load at or above the rig overload level, the clutch for the hoist can be disengaged and the brake applied to prevent the load from either damaging the rig or breaking off the tubing or rods in the well. In addition, the rig load can be evaluated to determine when the limit the block speed when pulling rods or tubing. | 03-05-2009 |
20090070041 | RETRACTABLE SENSOR SYSTEM AND TECHNIQUE - A technique usable with a well includes disposing a retractable line in a conduit having an open end located above a region of interest in the well. The retractable line comprises a sensing portion that, when the line is deployed, extends from the open end of the conduit and into the region of interest. Information observed by the sensing portion in the region of interest is communicated to the surface. When further well operations are to be performed in the region of interest, the retractable line is retracted until the sensing portion is located above the region of interest and below the surface. After the well operation is completed, the retractable line may be re-deployed such that the sensing portion again extends through the open end of the conduit and into the region of interest to continue observing characteristics associated with the well. | 03-12-2009 |
20090099777 | METHODS AND APPARATUS FOR EMERGENCY RIG MONITORING - Methods and apparatus for emergency rig monitoring are disclosed herein. The invention generally relates to methods and apparatus for monitoring an offshore rig. The rig monitoring systems and methods of use can relay information regarding the rig such as location, attitude (e.g. tilt, oscillation), and local water and weather conditions. The rig monitoring systems and methods can also facilitate emergency communication for rig personnel. Access to the information can be remotely initiated and the systems can be configured to automatically respond to such initiation. The rig monitoring systems are equipped with a self-sustainable power supply for operation under conditions where external power sources are unavailable. Such rig monitoring systems and methods are particularly useful on rigs that are located in waters subject to rapid and severe changes in local weather such as storms. | 04-16-2009 |
20090112476 | Method for Locating an Underground Septic Tank, Conduit, or the Like Using Injection/Detection Synchronization of an Acoustic Signal and Digital Signal Processing - This invention relates to a non-invasive method for easily locating an underground septic tank, distribution box, field line, conduit, or the like. In the preferred embodiment, prescribed acoustic signals are injected into an underground cavity via an accessable port and remotely detected by a time synchronized detector in contact with the ground which cross correlates the detected signal with a duplicate of the prescribed acoustic signal in order to reject background noise, and thus locate the underground cavity. A frequency sweep is conducted to exploit cavity resonance modes and thus further enhance the signal to noise ratio. | 04-30-2009 |
20090150076 | METHOD AND APPARATUS FOR ELECTROMAGNETIC LOGGING OF A FORMATION - A method and apparatus are disclosed for synthesizing desired antenna responses from a combination of measured antenna responses, as well as antenna arrays particularly suited to provide the measurements. Those arrays may include cross dipole and double cross dipole antennas. | 06-11-2009 |
20090157315 | Apparatus And Methods For Estimating Downhole Fluid Compositions - An apparatus and method for estimating a property of a species of the hydrocarbon in a downhole fluid are provided. In one aspect, the method may include: imparting a magnetic field on the fluid to align nuclei of the fluid with a direction of the primary magnetic field; imparting a perturbing radio frequency signal on the fluid to excite the nuclei of the fluid; detecting a radio frequency signal emitted by the excited nuclei of the fluid; estimating a frequency shift between the perturbing radio frequency and the detected radio frequency; and estimating using the frequency shift a property of one or more species of the hydrocarbons in the fluid. | 06-18-2009 |
20090187345 | APPARATUS AND METHOD FOR TIME MEASUREMENT IN DOWNHOLE MEASUREMENT PROCESSES - A time measurement device for a geologic downhole measurement tool is provided. The device includes a plurality of oscillators for measuring a time value. At least one of the plurality of oscillators has a first temperature range that is different from a second temperature range of at least another of the plurality of oscillators. A time measurement system and a method for providing a time measurement are also provided. | 07-23-2009 |
20090192711 | Data compression method for use in downhole applications - Borehole image data is compressed and transmitted to the surface one pixilated trace at a time. The compression methodology typically includes transform, quantization, and entropy encoding steps. The invention advantageously provides for sufficient data compression to enable conventional telemetry techniques (e.g., mud pulse telemetry) to be utilized for transmitting borehole images to the surface. By compressing and transmitting sensor data trace by trace the invention also tends to significantly reduce latency. | 07-30-2009 |
20090192712 | SYSTEM AND METHOD FOR WATERFLOOD PERFORMANCE MONITORING - Method, system and computer program product for controlling a production/injection operation for an oilfield, the oilfield having a first wellsite with a producing well advanced into subterranean formations with geological structures and reservoirs therein. Data from a plurality of data sources is collected with respect to a production/injection operation, wherein the collected data includes oil production data and fluid injection data. The collected data is stored in a database. Extracted data relating to a selected performance parameter to be monitored is extracted from the database, the extracted data is processed, and a graphical representation of the processed data is dynamically displayed to enable monitoring of the selected performance parameter. | 07-30-2009 |
20090210159 | Echo-Decay-Acceleration Data Acquisition Method for Gas Identification Using a Low-Field Gradient - A first NMR echo train is acquired with a single TE. A second NMR echo train is acquired with a first portion having the same TE and the second portion having a longer TE. When measurements are made with a low magnetic field gradient, processing the two echo trains can be used to determine gas in the formation. | 08-20-2009 |
20090210160 | ESTIMATING HORIZONTAL STRESS FROM THREE-DIMENSIONAL ANISOTROPY - A method for determining properties of a subterranean formation. The method includes determining at least one characterization parameter based on wave velocity measurement data, determining a plurality of elastic coefficients based on the at least one characterization parameter using a plurality of equations, determining an anisotropic stress profile of the subterranean formations based on the stiffness matrix of the subterranean formation comprising the plurality of elastic coefficients wherein the elastic coefficients are approximated using the plurality of equations, and displaying the anisotropic stress profile of the subterranean formations. | 08-20-2009 |
20090216453 | SYSTEM AND METHOD TO LOCATE, MONITOR AND QUANTIFY FRICTION BETWEEN A DRILLSTRING AND A WELLBORE - Disclosed herein is a method of locating and quantifying friction between a drillstring and a wellbore. The method includes, positioning a plurality of sensors within a wellbore, communicatively coupling the plurality of sensors, monitoring signals from the plurality of sensors, logging the sensed signals versus time versus depth of each of the plurality of sensors, locating at least one friction zone along the drillstring within the wellbore based on the logging and quantifying friction in the at least one friction zone based on the logging. | 08-27-2009 |
20090248306 | METHOD FOR DETERMINING A STEAM DRYNESS FACTOR - The present invention provides an easy, field applicable, and extra-equipment method for determining steam dryness directly under thermal high-viscosity oil stimulation. The technical effect is achieved by adding the gas non-condensed in a well under flooding to the saturated steam pumpdown. The non-condensed gas occurrence of the mixture will vary partial steam pressure. In doing so, the steam condensation temperature will vary too. The borehole temperature or pressure measurements can be used to evaluate the steam dryness. | 10-01-2009 |
20090248307 | METHODS AND SYSTEMS FOR ROBUST AND ACCURATE DETERMINATION OF WIRELINE DEPTH IN A BOREHOLE - This invention relates in general to measuring depth of well-tools, such as logging tools or the like, in a borehole. Embodiments of the present invention may provide for disposing conducting areas along a wireline that may be used to suspend and move the well-tool in the borehole, where the conducting areas may be disposed along the wireline at predetermined locations. A reader may be located at a reference location and may read when a conducting area passes through the reference location and this information may be used to determine the depth of the well-tool in the borehole. Additionally, this invention provides for combining depth measurements from the conducting areas with measurements from odometer wheels in frictional contact with the wireline and/or time of flight measurements of optical pulses passed along a fiber optic cable coupled with the wireline to accurately and robustly measure the depth of the wireline in the borehole. | 10-01-2009 |
20090254280 | METHOD FOR ANALYZING STRAIN DATA - A method for estimating a shape, the method including: selecting a structure comprising a plurality of strain sensors inoperable communication with the structure, each strain sensor configured to provide a strain measurement; placing the structure in a borehole; receiving the strain measurements from the plurality of strain sensors; creating a mesh grid having nodes, each node related to a location of one strain sensor and assigned a strain value measured by the one strain sensor; creating an additional node for the mesh grid wherein a strain value assigned to the additional node is derived from the strain value corresponding to at least one adjacent node; and performing an inverse finite method using the mesh grid with the assigned strain values to estimate the shape. | 10-08-2009 |
20090265110 | MULTIUSER OILFIELD DOMAIN ANALYSIS AND DATA MANAGEMENT - A method of oilfield data management including collecting oilfield data from an oilfield, executing instructions on a processor to perform a domain analysis of the oilfield data by a first analysis team to generate a first analysis, the first analysis team comprising a plurality of users who analyze a portion of the oilfield data relating to one or more oilfield functions, selectively providing access to the first analysis and the portion of the oilfield data for the plurality of users based on a continued analysis of the oilfield, executing instructions on the processor to perform the domain analysis of the oilfield data by a second analysis team to generate a second analysis, the second analysis team analyzing the portion of the oilfield data relating to the one or more oilfield functions, and selectively synchronizing the first analysis and the second analysis to generate a synchronized result. | 10-22-2009 |
20090271115 | WELLBORE TRACKING - Wellbore tracking by developing a wellbore deviation survey, including collecting wellbore deformation data using a caliper at each of a plurality of depths within the wellbore, collecting wellbore deviation data using a tiltmeter at ones of the plurality of depths, determining simulated wellbore deformation and deviation data using the oriented wellbore deformation data, and developing a wellbore deviation survey by calibrating the wellbore deviation data based on the oriented wellbore deviation data. | 10-29-2009 |
20090276156 | AUTOMATED HYDROCARBON RESERVOIR PRESSURE ESTIMATION - A method and system for estimating reservoir pressure in a hydrocarbon reservoir from downhole pressure measurements of producing wells is disclosed. Pressure measurements are obtained from wells in the production field over time, and communicated to a server that applies the pressure measurements for a well to a model of that well. The server operates the model using the pressure measurements to determine an operating mode of the well, such as producing or shut-in. Upon detection of a change in operating mode indicative of an abrupt change in flow at the well, such as corresponding to a shut-in event, additional downhole pressure measurement data is acquired until a steady-state condition is reached. The pressure measurements are used to determine a reservoir pressure, which is transmitted to a responsible reservoir engineer or other user. Modification of the determined reservoir pressure value by the user can be received, and the stored reservoir pressure and well model are updated accordingly. | 11-05-2009 |
20090299636 | METHOD FOR SELECTING WELL MEASUREMENTS - A method of determining a selection of well measurements and/or their respective control parameters is described based on a global target having predetermined sensitivities to a multitude of uncertainties associated with input variables to a model including the step of ranking measurements and control parameters in accordance with their capability to reduce the uncertainties of input variables identified as most sensitive input variables through simulations using the model or a reduced variant of the model. | 12-03-2009 |
20090306895 | GEOPHYSICAL SURVEYING - A method of analysing controlled source electromagnetic (CSEM) survey data to determine probability density functions (PDFs) for values of an electromagnetic parameter at locations in a subterranean region of interest is provided. Structural features in the subterranean strata are identified, e.g. from seismic survey data. An initial PDF for values of the electromagnetic parameter is then assigned to each feature. Models lo specifying values for the parameter in each structural feature are generated by sampling the PDFs. A subset of the models are deemed acceptable based on an acceptance criterion. The PDF for each feature is modified based on values for the parameter in the subset of accepted models to generate replacement PDFs for each feature. The process may be iterated a number of times to generate final PDFs for values of the electromagnetic parameter in the structural features identified in the subterranean region of interest. | 12-10-2009 |
20100004864 | WELL LOG CORRELATION - A method of automatically correlating well logs includes selecting well loops from the well logs and creating a set of possible marker positions for each well log in each well loop. From the possible marker positions, alternate marker sets are iteratively selected. A well tie error on each loop is calculated for each selected marker set, summed over all loops and minimized. | 01-07-2010 |
20100004865 | METHOD FOR GENERATING AN ESTIMATION OF INCREMENTAL RECOVERY FROM A SELECTED ENHANCED OIL RECOVERY (EOR) PROCESS - A method is disclosed for generating an estimation of an incremental recovery that can be expected from an Enhanced Oil Recovery (EOR) Process, comprising: selecting a set of reservoir properties; selecting an EOR process that is associated with the selected set of reservoir properties; and generating the estimation of the incremental recovery that can be expected from the selected EOR process. | 01-07-2010 |
20100017130 | METHOD OF RANKING GEOMARKERS AND COMPOSITIONAL ALLOCATION OF WELLBORE EFFLUENTS - A method of method of determining relative contributions of two or more producing subterranean sources to a total flow is described using the steps of selecting a subset from a set of identifiable components in the total flow and using the subset to determine the relative contributions of two or more producing subterranean sources, wherein the subset is selected based on the sensitivity of the determination step to errors in the measurement of concentrations of said identifiable components. | 01-21-2010 |
20100017131 | METHOD FOR EVALUATING MEASURED ELECTROMAGNETIC DATA RELATING TO A SUBSURFACE REGION - A method for evaluating measured electromagnetic (EM) data relating to a subsurface region, comprising the steps of: (a) specifying alternative models of the region in terms of input parameters with uncertainty; (b) receiving the measured EM data and an estimated error; and (c) carrying out a Bayesian inversion on the measured data using each of the alternative models to attribute a probability to each model on the basis of the measured data and estimated error. The method allows physical measurements with error to be translated into fundamental parameters which can be used to assess business risk and uncertainty for making decisions, and also provides for parameters and models which can typically be directly estimated by a geoscientist on a coarse spatial grid to be used as an input, and validated using the measured data with error. | 01-21-2010 |
20100057364 | ENABLING WELL-LOGGING INSTRUMENT DEVELOPMENT ON A COMMON, REALISTIC EARTH MODEL. - A system and method enable testing of a plurality of well-logging tools on a common, realistic earth model. To enable this testing, a model of a synthetic virtual geologic volume of interest is generated. From the synthetic virtual geologic volume of interest, a plurality of test properties are determined as a function of position within the virtual geologic volume of interest, wherein the test properties are measurable in actual geologic volumes of interest by a well-logging instruments. The individual test properties are then distributed to well-logging instrument developers with the model of the synthetic virtual geologic volume of interest to enable modeling and/or benchmarking of different well-logging instruments on the synthetic virtual geologic volume of interest and the ability to derive the original formation properties regardless of the method used (inversion, analytical solution, etc.). | 03-04-2010 |
20100082254 | SYSTEM AND METHOD TO MEASURE AND TRACK FLUID MOVEMENT IN A RESERVOIR USING ELECTROMAGNETIC TRANSMISSION - Systems and methods of enhancing crude oil recovery include radiating electromagnetic energy in the form of focused electromagnetic pulses into a permeable formation containing the crude oil and/or fluid via an array of antennae transmitting immediately in the far field. The electromagnetic pulses are focused at the depth of the fluid reservoir. Pulses will be reflected by the fluid according to the fluid material (e.g. oil vs. water) and/or the strata (e.g. rock, sand, etc.). An array of receiver antennae may be used to initially establish a reference of the reflected electromagnetic pattern, and then operated in conjunction with the transmit array to monitor the relative horizontal movement of oil and/or water within the subterranean reservoir. | 04-01-2010 |
20100094557 | Method for Estimating Missing Well Log Data - The invention relates generally to the field of oil and gas exploration and specifically to the use of well logs for exploration. This invention is directed to a method for estimating data that would have been collected in a region of a well log where there is a gap. This method uses identified elements in one data set to identify elements in another data set with data values indicative of the same geological characteristic as those in the first data set. | 04-15-2010 |
20100094558 | Method of Enhancing Attributes of Logs of Geological Formations - A method is disclosed of enhancing one or more attributes of a log, of a geological formation, including data generated in plural measurement channels corresponding to plural measurement devices, the method comprising the steps of: selecting data corresponding to a single said channel and deconvolving it; and seeking to impose one or more attributes of the resulting deconvolved data onto convolved log data of plural said channels in order to create an enhanced log. | 04-15-2010 |
20100106421 | DISTRIBUTED MEASUREMENT OF MUD TEMPERATURE - A method for estimating a temperature within sub-surface materials traversed by a wellbore includes: obtaining temperature data from a plurality of measurements of temperature taken within the wellbore; calculating an overall heat transfer coefficient from the measurement data; calculating a geothermal gradient from the overall heat transfer coefficient; and using the geothermal gradient to estimate the temperature within the sub-surface materials. A system and a computer program product are provided. | 04-29-2010 |
20100106422 | Fluids Lifting Tool - A fluids lifting tool and analysis system. The present invention comprises a fluid lifting system for a gas well. The system comprises a lifting tool positioned in the well and a docking station at the well surface. The tool includes a processor, pressure sensors, temperature sensors, an accelerometer, and a proximity sensor. A battery in the tool is adapted to be charged by inductive coupling using coils in the docking station and the tool. The tool is released from the docking station and descends the well. During descent the tool measures elapsed time, velocity of the tool, calculates distance traveled, measures pressure and temperature, determines volumes or oil and water in the well, and senses when the tool reaches the bottom of the well. The FLT chooses to ascend the well when appropriate and transfers measured and calculated data to the docking station. | 04-29-2010 |
20100131204 | METHOD FOR DETERMINING IN-SITU RELATIONSHIPS BETWEEN PHYSICAL PROPERTIES OF A POROUS MEDIUM FROM A SAMPLE THEREOF - A method for determining in-situ relationships between physical properties of a porous medium from a sample thereof includes acquiring a three-dimensional image of the sample and segmenting the image into pixels representing pore space and pixels representing rock grain. A plurality of sub-volumes are selected from the segmented image, and a porosity is calculated for each of the sub-volumes. A digital simulation is conducted on each of the sub-volumes to obtain a selected physical property for the sub-volume. A relationship is determined between porosity and the selected physical property using relationship data comprising the calculated porosity and the simulated physical property for each of the sub-volumes. The method includes at least one of storing and displaying the relationship. | 05-27-2010 |
20100138157 | METHOD FOR PROCESSING BOREHOLE LOGS TO ENHANCE THE CONTINUITY OF PHYSICAL PROPERTY MEASUREMENTS OF A SUBSURFACE REGION - A computer-implemented method and system for processing subsurface logs to enhance the continuity of physical property measurements. The method includes obtaining a set of measurement signals along a spatial or time domain from at least one sensor tool moving through a borehole which has traversed through a subsurface region. The method additionally includes performing a global inversion of the set of measurement signals along the spatial or time domain to determine a set of physical properties of the subsurface region having a smooth variation along the spatial or time domain, wherein the set of physical properties can be utilized to determine characteristics of the subsurface region. | 06-03-2010 |
20100138158 | METHOD AND APPARATUS FOR TESTING SWELLABLE MATERIALS - The invention provides a method and apparatus for use in testing the swell characteristics of swellable components used in downhole exploration or production equipment, such as swellable packers. A method of measuring a test piece using a testing apparatus with a fluid chamber and a transducer is described. Measured data can be compared with data measured from a sample section of a tool to determine a relationship between swell characteristics. The determined relationships can then be used to calculate or predict swelling characteristics of swellable components, for example particular packer designs, in specific fluid samples. | 06-03-2010 |
20100145620 | ROTATABLE ORIENTATION INDEPENDENT GRAVITY SENSOR AND METHODS FOR CORRECTING SYSTEMATIC ERRORS - A method to correct for a systematic error of a sensor having a plurality of accelerometers configured to measure gravitational acceleration, the method including: rotating the plurality of accelerometers about a first axis; obtaining a first set of calibration measurements from the plurality of accelerometers from the rotation about the first axis; determining a first systematic error for each accelerometer in the plurality using the first set of calibration measurements; and removing the first systematic error from sensor measurements to correct for the systematic error. | 06-10-2010 |
20100153014 | APPARATUS AND METHODS FOR ESTIMATING A DOWNHOLE PROPERTY - Apparatus and methods for estimating a downhole property are provided. The apparatus may include a downhole tool having a predetermined temperature calibration based at least in part on an expected downhole temperature and a temperature controller in communication with the downhole tool that maintains a downhole tool temperature substantially within the predetermined temperature calibration. A method may include conveying a downhole tool having a predetermined temperature calibration based at least in part on an expected downhole temperature in a well borehole and adjusting the temperature of the downhole tool during downhole operation to maintain a downhole tool temperature substantially within the predetermined temperature calibration. | 06-17-2010 |
20100174489 | EFFECTIVE HYDROCARBON RESERVOIR EXPLORATION DECISION MAKING - An improved methodology for managing hydrocarbon exploration of at least one prospect. The methodology involves iterative processing that allows decision makers to iterate on assumptions and refine underlying probabilistic models as well as optimize the set of recommended exploration activities that are to be performed over time as additional knowledge is gained. | 07-08-2010 |
20100179761 | Interpretation and Mapping of Electromagnetic Survey Data - A food making process comprises starting with Lupin legumes with minimum levels of alkaloids, dehulling the Lupin legumes to produce split seed kernels, mixing the split seed kernels with hot water to hydrate them into a slurry, grinding the slurry to blend and smooth it into a product base, cooking the product base to achieve a particular flavor and aroma consistent with a target food product, cooling the product base to stop cooking, and further processing the product base into a target food product like soups and beverages. In particular, the Lupinus Angustifolius variety produces the best results, but other sweet lupin varieties can be used if they have been leached of their bitter tasting alkaloids. The products produced have high levels of protein, vitamins, and other nutritional values. Both batch and continuous processes are possible. | 07-15-2010 |
20100191469 | ELECTROMAGNETIC LOGGING IN TIME DOMAIN WITH USE OF SPECIFIC CURRENT PULSES - A method for estimating a property of an earth formation in a zone of investigation, the earth formation having the zone of investigation and another zone, the method including: applying a compound pulse of electromagnetic energy to the earth formation, the compound pulse having a shape to induce a predominately greater amount of current in the zone of investigation than in the another zone, wherein the compound pulse includes a first pulse and a second pulse, the first pulse having an amplitude different from the amplitude of the second pulse; receiving a response of electromagnetic energy from the current induced by the compound pulse; and estimating the property from the response of electromagnetic energy. | 07-29-2010 |
20100198518 | REDUCING ERROR CONTRIBUTIONS TO GYROSCOPIC MEASUREMENTS FROM A WELLBORE SURVEY SYSTEM - A method reduces error contributions to gyroscopic measurements from a wellbore survey system having two gyroscopic sensors adapted to generate signals indicative of at least one component of the Earth's rotation substantially perpendicular to the wellbore and indicative of a component of the Earth's rotation substantially parallel to the wellbore. The method includes generating a first signal indicative of the at least one substantially perpendicular component while the first sensor is in a first orientation; generating a second signal indicative of the at least one substantially perpendicular component while the first sensor is in a second orientation; generating a third signal indicative of the substantially parallel component while the second sensor is in a first orientation; and generating a fourth signal indicative of the substantially parallel component while the second sensor is in a second orientation. The method further includes calculating information regarding at least one of a mass unbalance offset error and a quadrature bias error using the first, second, third, and fourth signals. | 08-05-2010 |
20100250139 | MOBILE WELLSITE MONITORING - Methods for monitoring a wellsite include transporting a mobile monitoring platform to a wellsite. The mobile monitoring platform includes a transportable chassis including two or more wheels; a mast supported by the platform and extendable vertically upward from the chassis; a transceiver including a wireless modem and an antenna; a controller adapted to communicate with the transceiver; and a power module electrically coupled to at least one of the transceiver and the processor. The methods include wirelessly receiving, at the transceiver, wellsite data from a plurality of sensors at or adjacent the wellsite; and wirelessly transmitting, in real-time, the wellsite data to a remote monitoring station | 09-30-2010 |
20100262370 | Data Transmission Systems and Methods for Azimuthally Sensitive Tools with Multiple Depths of Investigation - Disclosed herein are various telemetry systems and methods suitable for communicating a cylindrical volume of formation property measurements to the surface. Some system embodiments include a downhole processor coupled to a telemetry transmitter. The downhole processor determines a compressed representation of the formation property measurements and/or selects a subset of the measurements for transmission uphole. The subset selection can be based on selected radial distances having characteristics that potentially indicate features of interest to a user. Such features include bed boundaries, and the characteristics include sinusoidal variation as a function of azimuth, large changes in this sinusoidal variation versus radial distance, or inversion suggesting the presence of a bed boundary. Various compressed representations of the cylindrical data volume are disclosed, including representations based on parameters of a sinusoidal model, representations based on a two dimensional transform, and representations based on estimates of distance and direction to a bed boundary. | 10-14-2010 |
20100305861 | SYSTEMS AND METHODS TO PROCESS OILFIELD DATA - Systems and methods to process oilfield data are disclosed. An example system for processing oilfield data includes a first computer comprising a first processor and first memory and a second computer coupled to the first computer, the second computer having a second processor and a second memory. The example second processor has a faster processing speed than the first processor and the first memory stores an amount of oilfield data larger than the second memory and instructions for: receiving the oilfield data at the first computer, processing the oilfield data at the first computer to generate second data, transmitting at least a portion of the second data to the second computer for processing performed by the second computer, wherein the processing performed by the second computer has a higher computational load than the processing performed by the first computer, and receiving data resulting from the processing by the second computer. | 12-02-2010 |
20100312477 | Automated Log Quality Monitoring Systems and Methods - Disclosed systems and methods provide automated log quality monitoring, thereby enabling fast, on-site determination of log quality by logging engineers as well as re-assurance to interpreters faced with geologically-improbable features in the logs. Such uses can provide early detection of logging issues, increase confidence in acquired logs, reduce unnecessary duplication of effort, and improve the reputation of the logging company. In at least some embodiments, log monitoring software applies a comparison function to axially-spaced (and/or azimuthally-spaced) sensors. The comparison function can be, inter alia, cross-correlation, mutual information, mean-square error, and ratio image uniformity, each of which can be determined as a function of a sliding window position to indicate regions wherein the log quality falls below a threshold value. It is not necessary for the log sensors to be of the same type, e.g., resistivity image sensors. | 12-09-2010 |
20100324825 | METHOD AND APPARATUS FOR MODELLING THE INTERACTION OF A DRILL BIT WITH THE EARTH FORMATION - A method of predicting a well trajectory wherein the method utilises a series of parameters to calculate the trajectory. The method is characterised in that the parameters include the angle of a drill bit ( | 12-23-2010 |
20100332137 | CASING DETECTION - A system and method for detecting casing is provided. In one example, a method for detecting drill casing in a downhole environment includes the steps of generating a plurality of plots of a magnetic field vector (MIN) at a series of depths; and monitoring the plots to detect proximity to the well casing. | 12-30-2010 |
20110010096 | IDENTIFYING TYPES OF SENSORS BASED ON SENSOR MEASUREMENT DATA - Plural sensors are deployed into a well, and measurement data regarding at least one property of the well is received from the sensors. Based on the measurement data, a first of the plural sensors that measures the at least one property in a region having an annular fluid flow is identified, and a second of the plural sensors that measures the at least one property in a region outside the region having the annular fluid flow is identified. Based on the identifying, the measurement data from selected one or more of the plural sensors is used to produce a target output. | 01-13-2011 |
20110015862 | METHOD AND APPARATUS FOR WELLBORE SURVEY USING INERTIAL SENSORS - A sensor apparatus comprising a housing, two or three gyroscope units and three accelerometer units. The gyroscope units are oriented orthogonally respective to each other and mounted within the housing. Each gyroscope unit includes a plurality of gyroscopes with input axes parallel to each other. The accelerometer units are oriented orthogonally respective to each other and mounted within the housing. Each accelerometer unit includes a plurality of accelerometers with detection axes parallel to each other. | 01-20-2011 |
20110022318 | High Resolution Sensor with Scalable Sample Rate - Apparatus and methods of providing a selected sample rate for sensor measurements are provided, which in one aspect may include a circuit configured to receive sensor signals as a first series of count rates corresponding to sensor the sensor measurements, each count rate representing a value of a parameter of interest, at least two accumulators configured to alternately accumulate the count rates in the series of count rates over a time period that corresponds to a selected sample rate and a controller configured to control the time periods for the at least two accumulators. | 01-27-2011 |
20110029244 | TECHNIQUES FOR SURFACE EXPLORATION AND MONITORING - Techniques for surface exploration and monitoring are presented. In representative embodiments, a system is provided that can perform multiple types of measurements of a surface. For example a single system of survey probes and one or more survey controllers can be used to offer both seismic and electrical measurements. A survey controller can be configured to automatically poll survey probes to obtain identifiers of the probes and determine a relative order the probes. Survey probes can be configured to: (a) collect signals associated with a surface; (b) digitize the signals to form digital data; and (c) store the digital data for later transmission to the survey controller. Relative positions of survey probes can be automatically determined using a transmitting beacon or other techniques. Survey probes can automatically disconnect from a power conduit while measuring a surface property and operate using an internal source of power when disconnected, to reduce noise. The survey controller can be remotely accessible through a, computer network for remote control of the survey probes. | 02-03-2011 |
20110029245 | METHODS FOR PRODUCING A LOG OF MATERIAL PROPERTIES - A method for making a log of material properties in a plurality of beds from an instrument utilizes steps such as estimating material properties for said plurality of beds and/or estimating positions for a plurality of bed boundaries and/or estimating orientations for said plurality of bed boundaries wherein the bed boundary orientations are individually variable. The estimated positions, orientations, and/or material properties can be utilized to compute the log. | 02-03-2011 |
20110035152 | AUTONOMOUS WELLBORE NAVIGATION DEVICE - A borehole apparatus capable of autonomously estimating its position in a borehole and controlling the actions of a downhole tool located in the borehole. The apparatus comprising a body, at least one measurement device capable of measuring a parameter of the borehole or the distance traveled by the device, a computer system located in the body, and a power system. The computer system comprises a processor arranged to receive data from the at least one measurement device and to calculate the position of the apparatus in the borehole, and a data storage device capable of storing data that have been processed by the processor and for storing instructions to control the actions of the downhole tool. The computer system is configured to process the data gathered from the at least one measurement device to estimate the position of the downhole device using a Bayesian approach and configured to provide output signals to control an action of the downhole tool dependant on the position of the apparatus in the borehole. | 02-10-2011 |
20110066378 | Apparatus and Methods for Controlling and Communicating with Downhole Devices - Apparatus and methods for controlling and communicating with one or more tools in a downhole tool string including a tractor, an auxiliary tractor tool, a logging tool, a safety sub, a release mechanism, a unit containing sensors for monitoring downhole conditions, a setting tool, and a perforating gun. Also provided are apparatus and methods for controlling and communicating with one or more perforating guns, release devices, and explosive devices in a string to be lowered into a wellbore. Control and communication are accomplished by sending signals from the surface to control switches in the control units on the tool, with redundant switches for safety, to state machines in the respective control units, each state machine returning a signal verifying switch status to the surface. Control and power functions are accomplished with voltage of different polarities for safety. | 03-17-2011 |
20110066379 | SURVEY SYSTEM FOR LOCATING GEOPHYSICAL ANOMALIES - A survey system is described for locating and classifying geophysical anomalies. It includes a moving platform equipped with a recording unit for recording the position of the platform. The system also comprises three first measuring units or sensors, adapted to record a varying electric field strength and a varying magnetic field strength at chosen intervals and thus positions, said first measuring units being adapted to measure said field strengths in three independent and mutually orthogonal directions at frequencies in a chosen range. The system includes a calculation unit for combining the measurements from each of said first sensors and calculating and recording as well as comparing the field strength vectors of the varying measured fields at each position, to find anomalies. | 03-17-2011 |
20110071762 | METHOD OF DETERMINING A TRANSIENT ELECTROMAGNETIC RESPONSE OF A FORMATION - A system and method for determining an electromagnetic response from a region in an earth formation. Receivers where raw response signals (V | 03-24-2011 |
20110093199 | CHARACTERIZATION OF LOGGING TOOL PERFORMANCE - A method for determining the measurement precision of a formation evaluation tool in a borehole comprises: a) conveying the formation evaluation tool into the borehole, b) using the formation evaluation tool to make measurements, and c) analyzing the measurements using mean squared difference stability statistics to generate an output indicative of measurement precision. Step c) may comprise using an Allan variance to assess the measurements taken in step b). The method may further include deriving an optimum logging speed from the analysis performed in step c), which may occur at the lowest value of the Allan variance. | 04-21-2011 |
20110106452 | Determination and Control of Wellbore Fluid Level, Output Flow, and Desired Pump Operating Speed, Using a Control System for a Centrifugal Pump Disposed Within the Wellbore - A method and apparatus for determining a fluid level and/or output flow during operation of a centrifugal pump, are provided, which may be used for production of gas and/or oil from a well, and include a vector feedback model to derive values of torque and speed from signals indicative of instantaneous current and voltage drawn by the pump motor, a pump model which derives values of the fluid flow rate and the head pressure for the pump from torque and speed inputs, a pumping system model that derives, from the estimated values of the pump operating parameters, an estimated value of fluid level and other pumping system parameters. Controllers responsive to the estimated values of the pumping system parameters control the pump to maintain fluid level at the pump input, near an optimum level, or within a safe operating range and/or output flow from the pump. | 05-05-2011 |
20110118983 | SYSTEM AND METHOD FOR RESERVOIR ANALYSIS BACKGROUND - A system for and method of automatically evaluating similarity between a target geological region of interest and a plurality of known geological regions of interest includes selecting a plurality of quantitative parameters describing reservoir characteristics of the target geological region of interest and defining a graphical target line based on values of the selected parameters. Comparison lines are graphically constructed for at least some of the plurality of known geological regions of interest, respective comparison lines representing respective values of the quantitative parameters describing corresponding characteristics of respective regions among the known geological regions of interest. A similarity factor between each of the comparison lines and the target line is calculated based on the plotted target and comparison lines. The comparison lines are ranked based on the calculated similarity factors, and similarity factor versus similarity rank are graphically displayed. | 05-19-2011 |
20110137565 | SYSTEM AND METHOD FOR LACUNARITY ANALYSIS - A system for and computer implemented method for analysis of data representative of subsurface properties of a subsurface region. The method includes transforming the data representative of subsurface properties of the subsurface region into transformed data in accordance with a selected criterion. A three dimensional window geometry to be applied to the transformed data is selected, based, at least in part, on expected feature sizes present, data sampling density and a size of the subsurface region. A plurality of values for a three dimensional lacunarity statistic are calculated by applying the selected three dimensional window geometry to randomly selected regions of the subsurface region, and correlating the calculated values to the subsurface properties of the subsurface region. | 06-09-2011 |
20110166789 | SYSTEM AND METHOD FOR DETERMINING DRILLING ACTIVITY - A method and system for interpreting oilfield process data, including drilling rig data and/or the like, is described, the method and system including use of a knowledge representation containing a representation of uncertainty in the oilfield process operations. | 07-07-2011 |
20110191027 | METHOD AND APPARATUS FOR MEASURING THE VERTICAL SEPARATION OF TWO STATIONS IN A BOREHOLE - A system and method for use in a downhole tool having a fluid density measurement device positioned therein are provided. In one example, the method includes deploying the downhole tool at a first station in a borehole. The downhole tool is moved from the first station to a second station in the borehole. A plurality of fluid density values of fluid within the borehole between the first and second stations are measured using the fluid density measurement device in the downhole tool. The plurality of fluid density values may represent a continuous log of fluid densities between the first and second stations. | 08-04-2011 |
20110191028 | MEASUREMENT DEVICES WITH MEMORY TAGS AND METHODS THEREOF - A downhole measurement device includes one or more sensors configured to measure a parameter in a well; a plurality of memory tags for storing measurement data from the one or more sensors; and an ejection module configured to release one of the plurality of memory tags upon a predetermined condition. A method for monitoring a well includes deploying of a measurement device having one or more sensors and a plurality of memory tags into a wellbore; obtaining measurement data of the parameter using the one or more sensors; writing the measurement data to one of the plurality of memory tags; releasing the memory tag having the measurement data; allowing the memory tag having the measurement data to be carried by a flow in the wellbore uphole; reading the measurement data from the memory tag having the measurement data at a location remote from the downhole measurement device. | 08-04-2011 |
20110191029 | SYSTEM AND METHOD FOR WELL TEST DESIGN, INTERPRETATION AND TEST OBJECTIVES VERIFICATION - A method and system for well test optimization provides test parameters and variation range therefor, independently from preliminarily reservoir and downhole fluid data; and repeatedly executes the test for each parameter to obtain real-time measured data, and interpreted data that is compared to the variation range for meeting a test objective. A method and system for well test design and interpretation, includes a testing manager having testing hardware/gauge metrology; a geological model; dynamic/static engineering data acquisition; and a reservoir model generator. A method and system for well test design and interpretation generates a test plan and an initial reservoir model and data from real/near-real-time, surface/downhole/manual data, aggregated data based on quality control/assurance, and optimization data based thereon and simulated downhole data; models/interprets the optimization data to meet test objectives for terminating/continuing the test plan; modifies the optimization; and/or generates reports from the modeling/interpretation when terminating the test plan. | 08-04-2011 |
20110196612 | DEVICE ORIENTATION DETERMINATION - In some embodiments, apparatus and systems, as well as methods, may operate to obtain hole azimuth data or inclination data associated with a chassis (e.g., comprising a measurement or logging tool) in a borehole using interpolated data or survey data, and to determine magnetic field orientation of the chassis using a portion of the hole azimuth data, a portion of the inclination data, relative bearing data, and Earth magnetic field orientation data by reconstructing at least a portion of borehole magnetic field data that is corrupt or missing. Additional apparatus, systems, and methods are disclosed. | 08-11-2011 |
20110202275 | DETERMINING FLUID PRESSURE - A wellbore fluid pressure measurement system includes a densometer adapted to measure a fluid density of a fluid flowing in a tubing system; and a monitoring unit communicably coupled to the densometer. The monitoring unit is adapted to receive a plurality of values representative of the fluid density from the densometer and includes a memory adapted to store the plurality of values representative of the fluid density; and one or more processors operable to execute a fluid pressure measurement module. The module is operable when executed to determine a fluid pressure of the fluid based on at least a portion of the values representative of the fluid density. | 08-18-2011 |
20110202276 | SYSTEMS AND METHODS FOR DOWNHOLE FLUID TYPING WITH PULSED NEUTRON LOGGING - Downhole fluid typing with pulsed neutron logging. A method comprises obtaining gamma count rates at a particular borehole depth; calculating a fluid type indicative response value for the borehole depth; determining at least one fluid type based on the response value for the particular borehole depth; and producing a display of the at least one fluid type corresponding to the borehole depth. A system comprises a downhole tool comprising a neutron source and at least one gamma detector; gamma count rates produced due to gamma arrivals at the gamma detector(s); and a processor coupled to a memory, wherein the memory stores a program that, when executed by the processor, causes the processor to: calculate a fluid type indicative response value for a particular borehole depth based on the gamma count rates; and determine at least one fluid type based on the response value for the particular borehole depth. | 08-18-2011 |
20110213554 | METHOD AND SYSTEM FOR SCREENING AN AREA OF THE ATMOSPHERE FOR SOURCES OF EMISSIONS - A method for remotely screening a selected area of the atmosphere for the presence of emissions into the atmosphere comprises moving a mobile platform, such as an aircraft, which carries an atmospheric component sensor in a pattern over and in the vicinity of the selected area, measuring the concentration of a component of the atmosphere at one or more points along the pattern with the atmospheric component sensor to obtain concentration data, obtaining supplementary data, and using an inverse dispersion technique, that utilizes the concentration data with the supplementary data to detect and locate one or more sources of emissions, and to determine the emitted mass release rates and/or surface fluxes. | 09-01-2011 |
20110213555 | TIME DEPENDENT NEUTRON-GAMMA SPECTROSCOPY - An apparatus and method for estimating at least one parameter of interest of an earth formation including an estimation of the parameter of interest using a time-dependent ratio of information obtained from at least one neutron detector through the exposure of the earth formation to a radiation source, particularly a pulsed nuclear source. The apparatus includes a processor and storage subsystem with a program that, when executed, implements the method. Also, an apparatus and method for estimating at least one parameter of interest of an earth formation including an estimation of the parameter of interest using a first component and a second component of an information set obtained using a single radiation detector. | 09-01-2011 |
20110231097 | ACOUSTIC RADIAL PROFILING VIA FREQUENCY DOMAIN PROCESSING - A tool and processing system to provide an acoustic radial profile. A frequency semblance is performed on received time signals obtained from an array of acoustic receivers (FIG. | 09-22-2011 |
20110238312 | DIRECTIONAL RESISTIVITY MEASUREMENT FOR WELL PLACEMENT AND FORMATION EVALUATION - The present disclosure relates to a method to determine a formation property of a subsurface formation. A downhole logging tool having two or more antennas, at least two of the antennas having a transversely-sensitive element and an axially-sensitive element is provided. Azimuthally-sensitive measurements are obtained using the antennas of the downhole logging tool. The measurements are fitted to a Fourier series having Fourier coefficients that include channel gains, if any. A DC component, a first harmonic component, and a second harmonic component are determined from the Fourier series, a measurement type is determined using the DC component, the first harmonic component, and/or the second harmonic component, and the formation property of the subsurface formation is determined using the determined measurement type. | 09-29-2011 |
20110264372 | Expert System For Selecting Fit-For-Purpose Technologies And Wells For Reservoir Saturation Monitoring - Embodiments of the present invention provide a machine, program product, and computer-implemented method to select a fit-for-purpose tool for reservoir saturation monitoring. A computer stores a plurality of characteristics for a plurality of well-logging tools, including open hole and closed hole resistivity, pulse-neutron spectral carbon-oxygen, and pulse-neutron capture technologies, as well as a predetermined ranking of tools within a technology. The computer obtains user inputs associated with conditions of a candidate well, e.g., a minimum tubing restriction, whether the wellbore is open or cased, and whether the well is a wet producer. Inputs can also include an objective of the reservoir saturation monitoring, such as, evaluating sweep efficiency or identifying remaining pay for sidetrack or perforation. The computer compares the characteristics for the well-logging tools to the user inputs and determines a well-logging tool selection responsive to the comparison to thereby recommend a course of action for the candidate well. | 10-27-2011 |
20110270525 | MACHINES, SYSTEMS, COMPUTER-IMPLEMENTED METHODS, AND COMPUTER PROGRAM PRODUCTS TO TEST AND CERTIFY OIL AND GAS EQUIPMENT - Embodiments of machines, systems, computer-implemented methods, and computer program products certify oil and gas well equipment. Embodiments identify a selected well equipment device, a device test specification, and testing sequences to be performed by a corresponding testing apparatus. Embodiments select a testing sequence responsive to the selected device. Embodiments control the testing apparatus for the selected testing sequence so that the corresponding testing apparatus performs the sequence responsive to the device test specification. Embodiments generate testing data for the selected testing sequence and link the testing data for the selected testing sequence to the device identifier for the device so that a certificate can be generated. Embodiments generate a certificate for the selected device responsive to the testing sequences having been performed upon the selected device and link the certificate for the selected device to the device identifier so that the certificate can be readily recalled. | 11-03-2011 |
20110282583 | SYSTEMS AND METHODS FOR WELL POSITIONING USING A TRANSVERSE ROTATING MAGNETIC SOURCE - Systems and methods for well-drilling operations involving magnetic ranging with a rotating magnetic dipole are provided. In one embodiment, a system for determining a relative location of a magnetic dipole includes a three-axis magnetometer configured to obtain measurements of a time-dependent magnetic field caused by the magnetic source rotating about an axis and data processing circuitry configured to determine a transverse angle of rotation of the measurements such that one of two transverse components is in phase with one axial component when the transverse angle of rotation is used to transform the measurements. The data processing circuitry may determine a spatial relationship between the magnetic source and the three-axis magnetometer based at least in part on the transverse angle of rotation. | 11-17-2011 |
20110295507 | Method and Apparatus For Utilizing Time Division Multiple Waveform Transmitting - A method and apparatus of constructing a signal for a controlled source electromagnetic survey is described. In one embodiment, a method is described that includes determining a first waveform and a second waveform, the first waveform and second waveform related to a combined frequency spectrum and bandwidth associated with a geophysical survey line. Then, a signal is constructed by sequencing the first waveform with the second waveform. This signal may be utilized in a transmitter, which may be pulled by a vessel along the geophysical survey line. | 12-01-2011 |
20110301848 | METHOD OF DIAGNOSING FLOW AND DETERMINING COMPOSITIONAL CHANGES OF FLUID PRODUCING OR INJECTING THROUGH AN INFLOW CONTROL DEVICE - A method of diagnosing flow through an inflow control device includes, producing or injecting fluid through an inflow control device, measuring temperatures near or at the inflow control device over time while producing or injecting fluid therethrough, and attributing temporal changes in temperature to changes in the fluid that is produced or injected. | 12-08-2011 |
20110313667 | Analyzing Borehole Seismic Data to Locate Subsurface Diffractors - A system and method for locating subsurface diffractors. The method operates on two-dimensional (2-D) seismic data that includes one or more 2-D seismic lines. The 2-D seismic data may be preprocessed to enhance diffracted energy. For each hypothetical diffractor location in a set of hypothetical diffractor locations, the method involves analyzing at least a subset of the seismic traces of the one or more 2-D seismic lines, in order to compute a value indicating an extent to which those seismic traces contain diffraction arrivals consistent with the hypothetical diffractor location. The method may further involve generating, storing and displaying an image (or map) based on the computed values. The image may illustrate areas of high, intermediate and low diffraction, and may be used to assess the formation. | 12-22-2011 |
20120010817 | Continuous Gravity Survey of a Borehole - Gravity measurements from a borehole gravity survey are obtained by continuously moving the gravity meter within the borehole. Movement-induced acceleration errors are quantified and subtracted from the gross measurements from the gravity meter to obtain actual gravity values at a multitude of measurement points within the borehole. Acceleration errors are calculated from the second differential of the true vertical depth of the gravity meter, which is computed measured length and weight and elongation characteristics of a cable which suspends the gravity meter in the borehole, upper and lower tension measurements in the cable, and the topography of the borehole. | 01-12-2012 |
20120010818 | Collecting Control Source Electromagnetic Signals - Concurrently measuring, correlating, and processing magnetic and electric field data includes measuring base band signals, and then up-converting those band signals to a higher frequency for filtering, while at the same time preserving phase and amplitude information. All timed elements in the system are rigorously synchronized. The increased data set results in improved signal-to-noise ratio and information correlation. | 01-12-2012 |
20120016587 | RESOLUTION ENHANCEMENT FOR SUBTERRANEAN WELL DISTRIBUTED OPTICAL MEASUREMENTS - Enhancing resolution of distributed optical measurements along a wellbore can include acquiring optical signals during an acquisition time period, thereby producing a convolved profile along the wellbore, and deconvolving the profile using a first function corresponding to the acquisition time period, thereby determining a second function. Another method of enhancing resolution of distributed temperature measurements along a wellbore can include acquiring optical backscatter signals during at least first and second acquisition time periods, thereby producing respective first and second convolved temperature profiles along the wellbore; deconvolving the first temperature profile using a first function corresponding to the first time period, thereby determining a second function; and deconvolving the second temperature profile using the second function, thereby determining the first function corresponding to the second time period. | 01-19-2012 |
20120029825 | SYSTEM FOR STREAMER ELECTRICAL RESISTIVITY SURVEY AND METHOD FOR ANALYSIS OF UNDERGROUND STRUCTURE BELOW A RIVERBED - A system for measuring electrical resistivity survey checks a border of bedrock or a thickness of a sedimentary layer in a riverbed of a river or lake within a short time. A method for analysis of an underground structure of a riverbed using the same is also provided. The system for streamer electric resistivity survey using a survey boat comprises a streamer cable connected to the survey boat and having a plurality of electrodes attached thereto; a multi-channel resistivity meter loaded on the survey boat to measure electric resistivity from the plurality of electrodes; a first RTK GPS (Real Time Kinematic Global Positioning System) loaded on the survey boat to measure a position of the survey boat in real time; and a second RTK GPS installed to a tail of the streamer cable to measure a position of the tail in real time. | 02-02-2012 |
20120046865 | System and Method for Estimating Directional Characteristics Based on Bending Moment Measurements - A system for measuring directional characteristics of a downhole tool includes: at least one bending moment (BM) measurement device disposed at a downhole component, the at least one BM measurement device configured to generate bending moment data at at least one depth in the borehole, the bending moment data including a bending vector of the downhole tool, a bending moment representing an amplitude of the bending vector, and a bending tool face (BTF) angle representing an orientation of the bending vector; and a processor in operable communication with the BM measurement device and configured to receive bending moment data from the BM measurement device, calculate a dogleg severity (DLS) from the bending moment and a well tool face (WTF) angle from the BTF angle, and calculate at least one of a change in inclination and a change in azimuth based on the DLS and the WTF angle. | 02-23-2012 |
20120046866 | OILFIELD APPLICATIONS FOR DISTRIBUTED VIBRATION SENSING TECHNOLOGY - Methods and apparatus for monitoring a hydrocarbon production system. A fiber optic sensor system is deployed into hydrocarbon production system, so as to extend to location of interest within the system, for instance, in conjunction with a downhole component or a surface component. The fiber optic system detects vibration present in the production system component, and provides a signal indicative of the vibration to a signal acquisition and analysis unit. The vibration of the production component is analyzed and a change in system flow condition/property or a change in production system component integrity is determined. | 02-23-2012 |
20120059585 | Method and Apparatus for Offshore Hydrocarbon Electromagnetic Prospecting Based on Total Magnetic Field Measurements - A system for offshore hydrocarbon electromagnetic prospecting is described. The system includes a transmitter generating electromagnetic energy and injecting an electrical current into a flooded vertical cable. Electromagnetic fields generated by this current in the medium are measured by total field magnetometers or gradiometers. The measured response, which is sensitive to the resistivity of targets, is used to search for and identify hydrocarbon reservoirs. A method for offshore hydrocarbon electromagnetic prospecting is described as well. | 03-08-2012 |
20120084007 | SYSTEM AND METHOD FOR DECLUSTERING SUBSURFACE DATA ON A PER-SLICE BASIS - Wellbore data samples taken within a subsurface volume of interest are declustered. A weighting-based, interpolating technique is employed in a layer-based, two dimensional manner to separate slices within the subsurface volume of interest. The performance of declustering on a slice-by-slice basis may make the process less costly and/or may reduce certain artifacts or effects associated with subsurface data interpolation. | 04-05-2012 |
20120084008 | Real-Time Prognostic on Downhole Printed Circuit Board Assembly of Measurement-While-Drilling/Logging-While-Drilling - A method and apparatus for estimating a time to failure of an electronic component used in a downhole environment is disclosed. A stress is applied to the electronic component to cause failure of a plurality of prognostic sensors associated with the electronic component, wherein the stress level at which a prognostic sensor fails is indicative of a stress level at which the electronic component fails. Failure times are obtained due to the applied stress for the plurality of prognostic sensors. A trend is determined from the obtained failure times of the prognostic sensors. The time of failure of the electronic component is estimated from the determined trend. | 04-05-2012 |
20120089334 | SYSTEM AND METHOD FOR MEASURING DEPTH AND VELOCITY OF INSTRUMENTATION WITHIN A WELLBORE USING A BENDABLE TOOL - An apparatus and method for measuring depth, velocity, or both depth and velocity of instrumentation within a wellbore is provided. The apparatus includes a downhole portion movable within the wellbore in a direction generally parallel to the wellbore. The apparatus further includes a first acceleration sensor mounted at a first position within the downhole portion. The first acceleration sensor generates a first signal indicative of a first acceleration in a first direction generally parallel to the wellbore at the first position. The apparatus further includes a second acceleration sensor mounted at a second position within the downhole portion. The second acceleration sensor generates a second signal indicative of a second acceleration in a second direction generally parallel to the wellbore at the second position. The apparatus further includes a bend sensor generating a third signal indicative of an amount of bend of at least a portion of the downhole portion. | 04-12-2012 |
20120089335 | FLUID PRESSURE-VISCOSITY ANALYZER FOR DOWNHOLE FLUID SAMPLING PRESSURE DROP RATE SETTING - Methods and apparatus for estimating a hydrocarbon fluid parameter using a hydrocarbon fluid testing module. The method may include estimating a hydrocarbon fluid parameter value where a precipitate begins to form in a hydrocarbon fluid sample. The method may also include extracting a hydrocarbon fluid sample under pre-precipitate conditions; changing at least one hydrocarbon fluid parameter, generating information indicative of precipitate formation; and communicating the estimated value of the hydrocarbon fluid parameter at the precipitate formation point. The method may also include producing hydrocarbon fluid sample from a formation using the estimated value and a bubble point. The disclosure also includes an apparatus for implementing the method. | 04-12-2012 |
20120095685 | REDUCING ERROR CONTRIBUTIONS TO GYROSCOPIC MEASUREMENTS FROM A WELLBORE SURVEY SYSTEM - A method reduces gravity-dependent error contributions to gyroscopic measurements from a first gyroscopic sensor and a second gyroscopic sensor. The method includes receiving a first set of measurement signals and a second set of measurement signals indicative of at least one substantially perpendicular component and indicative of a substantially parallel component of the Earth's rotation. The method further includes receiving one or more measurement signals generated by a triad of accelerometers and calculating a first and second mass unbalance offset error for the first gyroscopic sensor and the second gyroscopic sensor, respectively. | 04-19-2012 |
20120095686 | Method and Apparatus for Removal of The Double Indication of Defects in Remote Eddy Current Inspection of Pipes - The apparatus employs the remote field eddy-current (RFEC) inspection technique to electromagnetically measure physical parameters of a metallic pipe. RFEC devices inserted into and displaced along a cylindrical pipes may be used to measure the ratio of pipe thickness to electromagnetic skin-depth and thus allow for the non-invasive detection of flaws or metal loss. Typically these RFEC thickness measurements exhibit a so-called double-indication of flaws, an undesired artifact due to a double-peaked geometrical sensitivity function of the device. The method describes a means by which this double indication artifact may be removed by an appropriate processing of RFEC measurements performed by an apparatus specifically designed for this purpose. The invention is particularly well designed for applications in the oilfield industry. | 04-19-2012 |
20120109526 | Method And System For Evaluating Sensor Data From A Well Service Rig - As activities are completed at a well service rig, sensors receive data and transmit it to a computer or database for storage. The sensor data, including the time it takes to complete particular activities on the rig, is evaluated to determine benchmarks. For example, data from multiple instances of an activity is organized and evaluated to determine the median value for data in that activity. Outlier data is removed and the new median and moving range is determined. A natural process limit range is then determined based on the moving range and data for each instance is compared to the natural process limit range. Instances that have data outside of the natural process limit range are noted and go through supplemental analysis to determine why the data was outside of the natural process limit range. The data can also be evaluated against activity benchmarks to determine if an activity was completed properly. | 05-03-2012 |
20120116679 | PROVIDING A TOW CABLE HAVING PLURAL ELECTROMAGNETIC RECEIVERS AND ONE OR MORE ELECTROMAGNETIC SOURCES - To perform marine electromagnetic (EM) surveying of a subterranean structure, a marine cable system is provided including a tow cable, a plurality of electromagnetic (EM) sources coupled to the tow cable, and a plurality of EM receivers coupled to the tow cable. The system is configured for deployment in a body of water to perform marine EM surveying of a subterranean structure. | 05-10-2012 |
20120123683 | CSEM SURVEY METHOD - There is disclosed a method of performing a controlled source electromagnetic survey, which includes in one embodiment deploying a receiver and an electric dipole source. The source defines a dipole axis. An electromagnetic field is transmitted from the electric dipole source. First and second horizontal components of an electromagnetic field response are detected using the receiver. A vertical component of the electromagnetic field response is then estimated using the detected first and second horizontal components of the electromagnetic field response. | 05-17-2012 |
20120143507 | SYSTEM AND METHOD FOR DECLUSTERING WELL LOG SAMPLES - Wellbore data samples related to a subsurface volume of interest are weighted based on wellbore orientation and/or stratal orientation. Declustering weights are determined that account for differences in sampling density caused by wellbore and/or stratal structure orientation. The declustering weights may be implemented to weight samples of parameters taken within wellbores, and/or to update or adjust other weights determined according to other schemes. | 06-07-2012 |
20120158305 | DRILLING COLLISION AVOIDANCE APPARATUS, METHODS, AND SYSTEMS - In some embodiments, apparatus and systems, as well as methods, may operate to launch a set of currents into a corresponding set of existing well casings; monitor, in a well under construction, changes in at least one of a magnetic field or an electric field perturbed by the set of currents after each one of the set is launched; and determine a location of the well under construction in relation to the set of existing well casings. In some embodiments, the activities include inducing current into a drillstring located in a well under construction; monitoring, at a set of existing well casings, changes in at least one of a magnetic field or an electric field perturbed by the current after the current is induced; and determining a location of the well under construction in relation to the set of existing well casings. Additional apparatus, systems, and methods are disclosed. | 06-21-2012 |
20120158306 | SYSTEM AND METHOD FOR PREPARING NEAR-SURFACE HEAVY OIL FOR EXTRACTION USING MICROBIAL DEGRADATION - In one embodiment, the invention provides an analytical processing system for enhancing the recovery of heavy oil in an underground, near-surface crude oil extraction environment, comprising: a data collection engine configured for receiving data relating to the underground, near-surface crude oil extraction environment, wherein the data includes in situ microbial species data, oil properties data and in situ nutrient information that are identified as being germane to the underground, near-surface crude oil extraction environment; a data warehouse for storing data collected from the data collection engine; and a data modeling system for analyzing data stored in the data warehouse and facilitating an identity of a preferred microbial species from the underground, near-surface crude oil extraction environment that can transform the heavy oil into a lighter oil. | 06-21-2012 |
20120179377 | TRANSDUCER ASSEMBLY - There is provided a transducer assembly for monitoring within a borehole. The transducer assembly is operable to at least one of: (a) generate acoustic radiation when excited with one or more signals; and (b) generate one or more signals when acoustic radiation is received thereat; wherein the transducer assembly includes one or more piezo-electric elements for converting between acoustic radiation and corresponding signals. The assembly includes an interfacing member for acoustically interfacing between the one or more piezo-electric elements and an environment of the borehole for protecting the one or more piezo-electric elements from the environment. The assembly is adapted to at least one of generate acoustic radiation and sense acoustic radiation in a sideways or down-borehole direction. | 07-12-2012 |
20120191352 | CDP Electromagnetic Marine Data Acquisition and Processing - This application relates to a method and apparatus for the acquisition, processing and inversion of marine control source electro magnetic (CSEM) data. A system provides data acquisition and processing of the responses measured simultaneously by multiple receivers placed in a near zone and partly in the intermediate zone at different distances around the transmitter. | 07-26-2012 |
20120191353 | MODEL BASED WORKFLOW FOR INTERPRETING DEEP-READING ELECTROMAGNETIC DATA - One embodiment of the invention involves a model-based method of inverting electromagnetic data associated with a subsurface area that includes developing a three-dimensional electromagnetic property model of the area, and restricting changes that may be made to the model during the electromagnetic data inversion process. Other related embodiments of the inventive method are also described and claimed. | 07-26-2012 |
20120197527 | MONITORING THE HEALTH OF A BLOWOUT PREVENTER - A computerized monitoring system and corresponding method of monitoring the status and health of a blowout preventer. The system includes a graphics display at which a graphical user interface (GUI) displays the health of various sealing elements and control systems by way of “traffic light” indicators. The health indicators are evaluated, by the monitoring system, based on a risk profile for each of the indicated elements and control systems. The risk profiles are evaluated based on inputs such as measurement inputs, feedback signals, mechanical positions, diagnostic results, drilling conditions, and other status information of the blowout preventer at a given time and based on levels of redundancy and levels of deviation from normal conditions. The GUI includes recent history of changes in operating condition, and alarm indications such as poor health, along with the times of those events. | 08-02-2012 |
20120215447 | METHOD FOR DETERMINING PALEO-PORE PRESSURE - In some aspects of the disclosure, a computer-implemented method performed by one or more processors and configured to determine a pressure of a sample multi-component gas inclusion in a sub-surface formation is disclosed. The computer-implemented method includes determining a set of Raman signatures for a calibration multi-component synthetic gas mixture at a plurality of temperatures, at a plurality of pressures and at a plurality of gas concentration mixing ratios to produce a model of pressure and Raman signatures; determining a second Raman signature of the sample multi-component gas mixture in the inclusion from the sub-surface formation; and determining a pressure of the second multi-component gas mixture based on the determined second Raman signature and the model of pressure and the first set of Raman signatures. | 08-23-2012 |
20120226442 | METHOD FOR POSITIONING A WELL RELATIVE TO SEISMIC IMAGE OF THE SUBSOIL - Three seismic waves are emitted from different emission points situated outside the well that is to be positioned relative to a seismic image. The times of arrival of these seismic waves are measured on a detector placed in the well. The propagation of the seismic waves emitted from the respective emission points is simulated using a speed model that has been used to construct the seismic image. The simulation provides the respective wavefronts presented by each of the waves at the end of a time equal to the time of arrival measured on the detector for this wave. The detector can then be positioned in the envelope area of the wavefronts, adjacent to the intersection of the wavefronts estimated in the seismic volume. | 09-06-2012 |
20120232799 | METHODS AND APPARATUS FOR CHARACTERIZATION OF PETROLEUM FLUID EMPLOYING ANALYSIS OF HIGH MOLECULAR WEIGHT COMPONENTS - A methodology that performs downhole fluid analysis of fluid properties of a reservoir and characterizes the reservoir based upon such downhole fluid analysis. The methodology acquires at least one fluid sample at a respective measurement station and performs downhole fluid analysis to measure properties of the fluid sample, including concentration of a plurality of high molecular weight components. For each of a plurality of type classes corresponding to different subsets of a predetermined set of high molecular weight components, a model is used to predict the concentration of the components of the given type class for the plurality of measurement stations. The predicted concentrations of the high molecular weight components for the plurality of type classes are then compared with corresponding concentrations measured by downhole fluid analysis for the plurality of measurement stations to identify the best matching type class. The results of the comparison are used for reservoir analysis, | 09-13-2012 |
20120271549 | Method of Mapping Reservoir Fluid Movement Using Gravity Sensors - The present disclosure relates to methods and apparatuses for acquiring multi-component gravity information for an earth formation. More particularly, the present disclosure relates to estimating the movement of fluid in an earth formation using at least one gravimeter configured to generate multi-component gravity information. The method may include estimating density changes in the earth formation. The method may include estimating a position of the at least one gravimeter. The apparatus may include a multi-component gravimeter configured to estimate gravity vectors for each vector component. | 10-25-2012 |
20120283950 | Determination and Control of Wellbore Fluid Level, Output Flow, and Desired Pump Operating Speed, Using a Control System for a Centrifugal Pump Disposed Within the Wellbore - A method and apparatus for determining a fluid level and/or output flow during operation of a centrifugal pump, are provided, which may be used for production of gas and/or oil from a well, and include a vector feedback model to derive values of torque and speed from signals indicative of instantaneous current and voltage drawn by the pump motor, a pump model which derives values of the fluid flow rate and the head pressure for the pump from torque and speed inputs, a pumping system model that derives, from the estimated values of the pump operating parameters, an estimated value of fluid level and other pumping system parameters. Controllers responsive to the estimated values of the pumping system parameters control the pump to maintain fluid level at the pump input, near an optimum level, or within a safe operating range and/or output flow from the pump. | 11-08-2012 |
20120303279 | Inclinometer to Determine Orientation of Gauge Installed Off Center Axis of a Tubing String - A method and apparatus for estimating an orientation of a downhole device conveyed into a well on a conveyance device is disclosed. The apparatus includes a first sensor and a second sensor placed circumferentially spaced apart on the device to provide measurements relating to a selected downhole parameter. A processor is configured to estimate the orientation of the downhole device using a phase difference between the measurements of the first sensor and the second sensor. | 11-29-2012 |
20120323493 | Method and Apparatus for Detecting Plunger Arrival - The disclosed device provides a high-accuracy plunger arrival detection system comprising a low-power magnetometer with high sensitivity and which is capable of sampling low or high intensity magnetic fields. The device processes gathered data from sensors, stores at least some processed data in memory, executes a trending algorithm which compares the magnetic field of the plunger to the ambient magnetic field or a predetermined set of initialization values, and generates an output which is relayed to a well controller. An output signal may be via hard wire, RF, wireless or other known means. In addition, the implementation of two sensing devices mounted in series and in spaced relation to each other, can provide for an actual plunger average velocity. An actual plunger average velocity, as opposed to approximate average velocity, can be used to better optimize well control and improve safety of the overall well production system. | 12-20-2012 |
20120323494 | IDENTIFYING TYPES OF SENSORS BASED ON SENSOR MEASUREMENT DATA - Plural sensors are deployed into a well, and measurement data regarding at least one property of the well is received from the sensors. Based on the measurement data, a first of the plural sensors that measures the at least one property in a region having an annular fluid flow is identified, and a second of the plural sensors that measures the at least one property in a region outside the region having the annular fluid flow is identified. Based on the identifying, the measurement data from selected one or more of the plural sensors is used to produce a target output. | 12-20-2012 |
20130013209 | PREDICTING ANISOTROPIC SOURCE ROCK PROPERTIES FROM WELL DATA - Method for predicting physical properties of a source rock formation wherein an inclusion-based ( | 01-10-2013 |
20130030705 | PRECISE BOREHOLE GEOMETRY AND BHA LATERAL MOTION BASED ON REAL TIME CALIPER MEASUREMENTS - Disclosed is a method for estimating a geometry of a borehole penetrating the earth. The method includes: performing a plurality of borehole caliper measurements with N transducers at a plurality of times, wherein for each time a measurement set comprises measurements made by the N transducers at that time; dividing a cross-section of the borehole into S sectors; obtaining an estimate of the borehole geometry by connecting representative radius points in adjacent sectors; displacing each measurement set according to a displacement vector related to an offset of each measurement set from the estimated geometry if the displacement vector exceeds a selection criterion; iterating the obtaining an estimate of the borehole geometry and the displacing each measurement set based on a latest displacement vector; and providing a latest obtained estimate as the geometry of the borehole when all of the displacement vectors no longer exceed the selection criterion for the displacing. | 01-31-2013 |
20130041586 | REALTIME DOGLEG SEVERITY PREDICTION - A method for estimating an inclination and azimuth at a bottom of a borehole includes forming a last survey point including a last inclination and a last azimuth; receiving at a computing device bending moment and at least one of a bending toolface measurement and a near bit inclination measurement from one or more sensors in the borehole; and forming the estimate by comparing possible dogleg severity (DLS) values with the bending moment value. | 02-14-2013 |
20130041587 | Using polymer elasticity to scale up the lab characteristics to field application of friction reducers - A method of determining the friction pressure drop gradient of at least one drag-reducing polymer passing through a tubing in an underground well includes determining the pressure drop, velocity and relaxation time of the drag-reducing polymer as it passes through a length of small diameter straight tubing at multiple injection rates in the lab. For each data set, the variables x=(Relaxation Time×Velocity) and y=(Pressure Drop Gradient×Diameter | 02-14-2013 |
20130046473 | Analyzing Fluid Within a Context - A processor accepts sensor data about a geological formation from a sensor. The sensor data is such that processing the sensor data using a processing technique to estimate a parameter of the geological formation without a constraint, whose value is not yet known, produces a plurality of non-unique estimates of the parameter. The processor accepts more than two time-displaced images of fluid sampled from the geological formation. The time displacements between the images are substantially defined by a mathematical series. The processor processes the images to determine the constraint. The processor processes the sensor data using the processing technique constrained by the constraint to estimate the parameter of the geological formation. The processor uses the estimated parameter to affect the drilling of a well through the geological formation. | 02-21-2013 |
20130060474 | ESTIMATION OF PETROPHYSICAL AND FLUID PROPERTIES USING INTEGRAL TRANSFORMS IN NUCLEAR MAGNETIC RESONANCE - Apparatus and method of characterizing a subterranean formation including observing a formation using nuclear magnetic resonance measurements, calculating an answer product by computing an integral transform on the indications in measurement-domain, and using answer products to estimate a property of the formation. Apparatus and a method for characterizing a subteranean formation including collecting NMR data of a formation, calculating an answer product comprising the data, wherein the calculating comprises a formula | 03-07-2013 |
20130066557 | METHOD OF PHASE SYNCHRONIZATION OF MWD OR WIRELINE APPARATUS SEPARATED IN THE STRING - The present disclosure is related to apparatuses and methods for estimating a phase offset in earth formations. The method may include estimating the phase offset by comparing signals generated and received by a first sub, the second signal being transmitted by a second sub that has been synchronized by the signal generated by the first sub. The signals may be exchanged using a first antenna on the first sub and a second antenna on the second sub. The signals may use a selected frequency. Synchronization may take place without electrical communication between the first and second subs. The method may include compensating for a propagation delay in the signals using the phase offset. The method may include using a time stamp during the synchronization. The apparatus may include a first antenna and a second antenna on first and second subs, respectively, both configured to transmit and receive electromagnetic signals. | 03-14-2013 |
20130085674 | REAL-TIME COMPOSITIONAL ANALYSIS OF HYDROCARBON BASED FLUID SAMPLES - Accurate, real-time formation fluids analysis can be accomplished using the systems and techniques described herein. A fluid analyzer includes a first mode of analysis, such as an optical analyzer, configured to determine a physical (optical) property of a fluid sample. The fluid analyzer also includes another mode of analysis, such as a composition analyzer, such as a gas chromatographer, configured to determine an elemental composition of the fluid sample. A data processor is configured to determine a quantity, such as a weight percentage, of a target component of the fluid sample in response results obtained from the first and second modes of analysis. Beneficially, the results are obtained at least in near real-time, allowing for interim results, such as results from the first analyzer to be used for one or more of tuning the compositional analyzer and for implementing quality control. | 04-04-2013 |
20130090853 | High-Frequency Data Capture for Diagnostics - High-frequency data capture for diagnostics is provided. An example system collects device data at a high acquisition rate. The collected data can be diagnostic when a critical event occurs, but need not be stored permanently or transmitted to a remote server unless needed. In an implementation, the data is stored in a dynamic circular buffer and the resolution of the data is tapered in real-time to maintain a lean data size of the entire buffer contents. High-resolution is maintained for recent data, while a decreasing resolution is applied to aging data. A triggering event changes the system from transmitting low bandwidth status information to transmitting the entire leaned-down data record stored in the buffer. After the triggering event, the system can also transmit incoming diagnostic data to the remote server at a high data resolution, and then can taper the resolution of the data transmission over time. | 04-11-2013 |
20130110401 | CALIBRATION AND CONSISTENCY CHECK OF VARIABLEW VOLUME SYSTEMS | 05-02-2013 |
20130124092 | METHOD OF USING SPATIALLY INDEPENDENT SUBSETS OF DATA TO CALCULATE VERTICAL TREND CURVE UNCERTAINTY OF SPATIALLY CORRELATED RESERVOIR DATA - A method, implemented on a computer, for calculating vertical trend curve uncertainty of spatially correlated reservoir data. The method includes inputting, into the computer, a sample reservoir data comprising correlated data; applying, using the computer, a variogram to the sample reservoir data to select a plurality of subsets of data, the subsets of data being substantially less correlated than the sample reservoir data; and applying, using the computer, a bootstrap process on each of the plurality of subsets of data to obtain a plurality of bootstrap data sets from each of the plurality of subsets of data. The method further includes calculating vertical trend curves for each of the obtained plurality of bootstrap data sets, ranking the vertical trend curves by using a selected statistical parameter to obtain ranked vertical trend curves, and characterizing the uncertainty based on the ranked vertical trend curves. | 05-16-2013 |
20130124093 | Communication Port For Use On A Wellbore Measuring Instrument - A wellbore measurement instrument includes a housing configured to move along an interior of a wellbore. At least one sensor is configured to measure a wellbore parameter. A controller is disposed in the housing. The controller includes at least one of a data storage device and a device to control operation of the at least one sensor. A communications port is disposed in an aperture in the housing. The port includes an industry standard connector matable with an industry standard terminated cable for connection to a surface device when the instrument is at the Earth's surface. | 05-16-2013 |
20130138347 | SYSTEM AND METHOD FOR MEASURING DEPTH AND VELOCITY OF INSTRUMENTATION WITHIN A WELLBORE USING A BENDABLE TOOL - An apparatus and method for measuring depth, velocity, or both depth and velocity of instrumentation along a wellbore is provided. The apparatus includes a downhole portion movable within the wellbore in a direction generally parallel to the wellbore. The apparatus further includes a first acceleration sensor that generates a first signal indicative of a first acceleration. The apparatus further includes a second acceleration sensor that generates a second signal indicative of a second acceleration. The apparatus further includes a bend sensor generating a third signal indicative of an amount of bend of at least a portion of the downhole portion. | 05-30-2013 |
20130151154 | Apparatus for Testing Swellable Materials - The invention provides an apparatus for use in testing the swell characteristics of swellable components used in downhole exploration or production equipment, such as swellable packers. A method of measuring a test piece using a testing apparatus with a fluid chamber and a transducer is described. Measured data can be compared with data measured from a sample section of a tool to determine a relationship between swell characteristics. The determined relationships can then be used to calculate or predict swelling characteristics of swellable components, for example particular packer designs, in specific fluid samples. | 06-13-2013 |
20130173164 | MAGNETIC RANGING TOOL AND METHOD - A downhole magnetic ranging tool includes first and second axially spaced magnetic sources deployed in a downhole tool body. The first and second magnetic sources have magnetic moments that axially opposed one another. A magnetic field sensor is deployed axially between the first and second magnetic sources. The tool may be utilized, for example, in subterranean well twinning, well intercept, and well avoidance operations to obtain a separation distance and dip angle between a drilling well and a target well. | 07-04-2013 |
20130173165 | System and Method For Artificial Lift System Surveillance - A system, method, and computer program product are disclosed for surveillance of artificial lift systems. An Artificial Lift Surveillance Tool (ALST) is provided to identify artificial lift wells with production declines due to artificial lift well failures. Production well information is provided for a plurality of the production wells each being associated with an artificial lift system. Artificial lift system failure alerts for the plurality of production wells are received and processed on a computer. A signal indicative of the production well information for each of the plurality of production wells is received and processed on a computer. The plurality of production wells are displayed in a hierarchical ordering, such as a treemap, responsive to the signal. | 07-04-2013 |
20130197808 | Methods And Apparatus For Characterization Of Hydrocarbon Reservoirs - A methodology performs downhole fluid analysis at multiple measurement stations within a wellbore traversing a reservoir to determine gradients of compositional components and other fluid properties. A model is used to predict concentrations of a plurality of high molecular weight solute part class-types at varying reservoir locations. Such predictions are compared against downhole measurements to identify the best matching solute part class-type. If the best-matching class type corresponds to at least one predetermined asphaltene component, phase stability of asphaltene in the reservoir fluid at a given depth is evaluated using equilibrium criteria involving an oil rich phase and an asphaltene rich phase of respective components of the reservoir fluid at the given depth. The result of the evaluation of asphaltene rich phase stability is used for reservoir analysis. The computational analysis that evaluates asphaltene rich phase stability can also be used in other reservoir understanding workflows and in reservoir simulation. | 08-01-2013 |
20130211723 | REDUCING ERROR CONTRIBUTIONS TO GYROSCOPIC MEASUREMENTS - A method and system for reducing error contributions to gyroscopic measurements is provided. The method includes receiving a plurality of signals indicative of at least one component of the Earth's rotation substantially perpendicular to a portion of a wellbore and a component of the Earth's rotation substantially parallel to the portion of the wellbore. The plurality of signals is generated by one or more gyroscopic sensors within the portion of the wellbore. The method further includes calculating, using the plurality of signals and using one or more signals indicative of the Earth's rotation rate and one or more signals indicative of the latitude of the one or more gyroscopic sensors within the portion of the wellbore, a mass unbalance offset for the one or more gyroscopic sensors. | 08-15-2013 |
20130245947 | DOWNHOLE SYSTEMS AND METHODS FOR WATER SOURCE DETERMINATION - A disclosed system for determining sources of water in a downhole fluid includes one or more downhole sensors that measure at least one analyte concentration in the downhole fluid, and a computer having analyte concentration characteristics for water from multiple sources. The computer uses the analyte concentration characteristics and the at least one analyte concentration measurement to determine an amount of water from at least one given source. A described method for determining sources of water in a downhole fluid includes associating with each of multiple sources of water a characteristic concentration of at least one analyte, obtaining measured concentrations of the at least one analyte with one or more downhole sensors, and deriving for at least one source of water a fraction of the downhole fluid attributable to that at least one source. The deriving may also be based upon measurements from distributed pressure and/or temperature sensors. | 09-19-2013 |
20130245948 | EXTRACTING DOWNHOLE FLOW PROFILES FROM TRACER FLOWBACK TRANSIENTS - A production pipe arrangement for a producing petroleum well with at least one of the well fluids (oil, gas, or water) with influx fluids two or more influx zones or influx locations to a production flow in a central production pipe in said well, with tracer sources with distinct tracer materials in known levels of the well, one or more separate delay chambers arranged as a completion component in said pipe, the delay chambers provided with said one or more of the tracers sources arranged in an annular space formed between the completion pipe and a borehole wall, with at least one of said tracer sources arranged exposed to the fluids in at least one of said influx zones, the delay chambers having one or more apertures to the fluid flow in said central pipe. | 09-19-2013 |
20130245949 | APPARATUS, COMPUTER READABLE MEDIA, AND COMPUTER PROGRAMS FOR ESTIMATING MISSING REAL-TIME DATA FOR INTELLIGENT FIELDS - Apparatus, computer readable media, and computer programs for managing an intelligent field, are provided. An exemplary apparatus can include, for example, a computer configured to perform the operations of receiving well instrument data, processing the data, detecting a missing or faulty data period, applying a rule set and logics, estimating values for the missing or faulty data, validating the estimated values, and inserting the data in the data period. | 09-19-2013 |
20130261971 | SYSTEM AND METHOD TO TRANSPORT DATA FROM A DOWNHOLE TOOL TO THE SURFACE - A system and method to transport data collected in a borehole penetrating the earth to a surface location are described. The system includes one or more measurement tools disposed in the borehole, the one or more measurement tools configured to collect data relating to the borehole and a formation penetrated by the borehole. The system also includes a data node tool disposed in the borehole with a plurality of data nodes, the data node tool being configured to receive the data from the one or more measurement tools, program one or more data nodes with at least a first portion of the data, and eject the one or more data nodes into a fluid stream for transport to the surface location. | 10-03-2013 |
20130268198 | METHOD FOR USING TRACER FLOWBACK FOR ESTIMATING INFLUX VOLUMES OF FLUIDS FROM DIFFERENT INFLUX ZONES - A method of estimating influx profile for well fluids (oil, gas, or water) to petroleum well with influx locations to a production flow, including:—arranging tracer sources with tracer materials in levels of the well, arranged downstream and exposed to the fluids in said influx zones,—each said tracer sources having even release rate to said well fluid,—inducing a transient in the production rate of the entire production flow by shutting in by a valve topside, changing the local exposure times of the tracer sources to the fluid, collecting samples, downstream at known sampling times,—analysing said samples for concentration and type of tracer material from said possible sources,—based on the concentrations and their sampling sequence and the well geometry, calculating influx volumes from flow models. | 10-10-2013 |
20130289879 | PROCESS FOR CHARACTERISING THE EVOLUTION OF A RESERVOIR - The application discloses a process and apparatus for characterising the evolution of a reservoir by co-analyzing the changes in the propagation times and seismic amplitudes of seismic reflections. The method comprising the steps of: providing a base survey of the reservoir with a set of seismic traces at a first time; and providing a monitor survey of the reservoir, taken at a second time, with a set of seismic traces associated to the same positions as in the base survey. The evolution of the reservoir is then characterised by inversion to obtain an estimate of the changes having occurred in the time interval between base and monitor surveys, the inversion being performed using at least some seismic traces for which no assumption is made that the energy is propagating vertically. In a main embodiment, inversion is performed by minimising a function which includes a term dependent on the incident angle of the seismic reflections. | 10-31-2013 |
20130297213 | OILFIELD EQUIPMENT IDENTIFICATION METHOD AND APPARATUS - A system comprising a piece of oilfield equipment, an identifier assembly and a reader. The piece of oilfield equipment has an exterior surface. The identifier assembly comprises an identification tag storing a unique identifier. The identification tag is capable of outputting a signal indicative of the unique identifier. The identification tag is mounted to the exterior surface of the piece of oilfield equipment beyond an external surface perimeter of the piece of oilfield equipment such that the identification tag is isolated from the exterior surface of the piece of oilfield equipment. The reader has an antenna receiving the signal indicative of the unique identifier from the identification tag. | 11-07-2013 |
20130304384 | ACCOUNTING FOR BENDING EFFECT IN DEEP AZIMUTHAL RESISTIVITY MEASUREMENTS USING INVERSION - An apparatus and method for estimating a parameter of interest of an earth formation involving alignment information between non-collocated oriented receivers and their corresponding non-collocated oriented transmitters. The method may include generating signal responses indicative to energy transmitted into an earth formation; estimating differences in alignment between transmitters and receivers; using the estimated differences in alignment to compensate for misalignment; and estimating a parameter of interest using the misalignment compensated signals. The misalignment estimate may include an inversion of at least one measurement from an alignment sensor. The apparatus may include a bottom hole assembly with oriented transmitters, oriented receivers, one or more alignment sensors, and at least one processor configured to compensate for misalignment using information about difference in alignment between at least one oriented transmitter and at least one oriented receiver. | 11-14-2013 |
20130304385 | HOLDING TANK MONITORING SYSTEM - A holding tank monitoring system includes a sensor that is preferably located near the input of a holding tank and measures characteristics of the fluid entering the holding tank over time to predict the expected remaining production in the well. | 11-14-2013 |
20130311093 | METHODS AND SYSTEMS FOR TESTING THE INTEGRITY OF COMPONENTS OF A HYDROCARBON WELL SYSTEM - A component of the hydrocarbon well system and a first supply line to the component can be isolated from other components of the hydrocarbon well system. The component and the first supply line can be pressurized to a test pressure with a test fluid. Then, a pressure and a temperature of the test fluid in the component that was pressurized can be measured over a period of time. The pressure and the temperature that were measured can be analyzed and a pressure integrity of the component can be determined based on the analysis. | 11-21-2013 |
20130317750 | APPARATUS AND METHODS FOR EVALUATING SYSTEMS ASSOCIATED WITH WELLHEADS - According to one aspect, data identifying a component is received, wherein the component is part of a system associated with a wellhead. A location at which the component is positioned relative to one or more other components is identified. The useful remaining operational life of the component is predicted based on at least an operational parameter specific to the location, and the operational history of the component or one or more components equivalent thereto. According to another aspect, a model representing at least a portion of a proposed system associated with a wellhead is generated, the model comprising a plurality of objects, each of which has a proposed location and represents an existing component. The useful remaining operational life for each object is predicted based on an operational parameter at the corresponding proposed location, and data associated with the respective operational history of the existing component. | 11-28-2013 |
20130332079 | MONITORING ENVIRONMENTAL CONDITIONS OF AN UNDERWATER INSTALLATION - An underwater installation comprising at least one underwater control equipment located in a body of water, a plurality of seismic sensors located on a bed of the body of water, wherein the plurality of seismic sensors are configured to monitor conditions to which the at least one underwater control equipment is subjected to, and a processor configured to receive and process data from the plurality of seismic sensors. | 12-12-2013 |
20130338922 | DETERMINING AN OUTPUT REPRESENTING A TARGET STRUCTURE BASED ON ENCODED SOURCE AND RECEIVER DATA - A source wavefield is computed from encoded source data calculated by performing encoding of source wavelets with noise. A receiver wavefield is computed from encoded receiver data calculated by encoding of measured receiver data with the noise. An output representing a target structure is determined based on the source wavefield and the receiver wavefield. | 12-19-2013 |
20130338923 | SYSTEMS AND METHODS FOR REMOTE ELECTROMAGNETIC EXPLORATION FOR MINERAL AND ENERGY RESOURCES USING STATIONARY LONG-RANGE TRANSMITTERS - A method for measuring the resistivity of geologic formations is described. An electromagnetic field may be generated using at least one stationary long-range transmitter. The frequency of the electromagnetic field may be between and/or including the ULF/ELF range. At least one component of the electromagnetic field may be measured by land, marine, submarine, and/or airborne receiver. A conductivity distribution may be determined based on the at least one measured component. The determined conductivity distribution may be correlated with geological formations and/or hydrocarbon deposits. | 12-19-2013 |
20140012506 | Method and System for Measuring and Calculating a Modified Equivalent Circulating Density (ECDm) in Drilling Operations - A method for collecting and analyzing downhole pressure data includes disposing a plurality of pressure sensors at axially spaced locations along a drill string disposed in a well. A first data set that includes a data point for each of the pressure sensors is collected. Each data point includes a pressure value and a depth value. A value of modified equivalent circulating density (ECDm) is calculated for at least one data point. ECDm includes a static pressure component and a dynamic pressure component. Calculating the ECDm includes computing the static pressure component based on the true vertical depth of the pressure sensor, and computing the dynamic pressure component based on a second depth value that differs from the true vertical depth and is common to all the pressure sensors for which ECDm is calculated. | 01-09-2014 |
20140025301 | DETERMINATION OF SUBSURFACE PROPERTIES OF A WELL - Embodiments of the present invention provide techniques for using data from a select set of wells to develop correlations between surface-measured properties and properties typically determined from subsurface measurements (e.g., from logging tool responses, core analysis, or other subsurface measurements). When new wells are drilled, the surface data acquired while drilling may be used as an input to these correlations in order to predict properties associated with subsurface measurements. | 01-23-2014 |
20140032115 | Systems and Methods for Determining the Moments and Forces of Two Concentric Pipes Within a Wellbore - Systems and methods for determining the bending moment and shear force of tubing and casing when the tubing buckles and contacts the casing. | 01-30-2014 |
20140032116 | MULTICOMPONENT BOREHOLE RADAR SYSTEMS AND METHODS - Disclosed herein are multicomponent borehole radar tools and methods. At least some tool embodiments employ at least two antennas that receive reflections of electromagnetic pulses transmitted from the tool. A processor processes the receive signals to identify reflection signals and to determine a direction and/or distance to the sources of the reflection signals. Possible sources include formation boundaries, fluid boundaries, cased wells, and other features that cause contrasts in electromagnetic properties. In addition to reflection signals, the measured responses may include direct signal measurements that are useful for determining formation resistivity and permittivity. Each of the antennas may transmit and receive, and they may be collocated to reduce tool size and reduce processing complexity. Disclosed logging tool examples employ both electric and magnetic dipole antennas. | 01-30-2014 |
20140039793 | MONITORING, DIAGNOSING AND OPTIMIZING GAS LIFT OPERATIONS - Systems and methods for monitoring, diagnosing and optimizing operation of a gas lift (GL) system, at least some of which include a method that includes collecting measured data representative of the GL system's state, storing the measured data, comparing the measured data to a well model's calculated data for the well and identifying likely conditions of the GL system based on mismatches between the measured data and the calculated data. The method further includes updating the model to reflect the likely conditions and selected corrections of the likely conditions, generating GL system performance curves using the updated model and presenting to a user actions recommended to achieve a GL system performance consistent with a GL system operating point on at least one of the GL system performance curves. | 02-06-2014 |
20140081574 | METHOD TO DETERMINE LOCAL VARIATIONS OF THE EARTH'S MAGNETIC FIELD AND LOCATION OF THE SOURCE THEREOF - A method to determine the earth's magnetic field vector along a sub-surface wellpath having unknown and possibly changing azimuth, in the presence of a magnetic disturbance caused by a magnetic source external to the wellpath includes estimating the three components of the earth field along the three axes of a magnetic sensor package by a polynomial function of measured depth along the wellpath. Upon removal of the earth's magnetic field from the measurements, the resultant magnetic field of the disturbance is determined and can be used to determine the position and orientation of the source of the disturbance. | 03-20-2014 |
20140088874 | CLOUD COMPUTING SYSTEM FOR SAMPLING FLUID FROM A WELL WITH A GAS TRAP - A cloud computing system for low maintenance sampling of gas from a well using a computing cloud, at least one gas analyzer for analyzing gas samples from a well being drilled connected to the computing cloud, a sample conditioning and filtering device in fluid and electronic communication with each gas analyzer for removing moisture from the gas samples; and a gas trap in communication with the gas analyzer and the computing cloud. | 03-27-2014 |
20140088875 | PUMPJACK TORQUE FILL ESTIMATION - The fill of a downhole pump of a pumpjack or other system may be estimated based on a dynamically changing a reference torque or force curve and actual torque or force measurements during at least a portion of a pump stroke. Using various techniques, the reference curve may dynamically change over time to take into account slowly changing operating conditions. Moreover, the reference curve and/or the measurements may be adjusted to ensure that the estimated and/or reported pump fill does not exceed 100 percent of pump capacity. | 03-27-2014 |
20140121970 | Systems and Methods for Analyzing Flowback Compositions in Real Time - A sensor assembly includes an optical computing device having an integrated computational element (ICE) configured to optically interact with a fluid stream and detect a first characteristic of a substance within the fluid stream. The optical computing device is configured to generate a first signal corresponding to the first characteristic. The sensor assembly also includes a parameter sensor configured to measure a second characteristic of the fluid stream and generate a second signal corresponding to the second characteristic and a processor communicatively coupled to the optical computing device and the parameter sensor. The processor is configured to receive the first and second signals and determine a mass flow rate of the substance. | 05-01-2014 |
20140121971 | Passive Magnetic Ranging for SAGD and Relief Wells Via a Linearized Trailing Window Kalman Filter - A method of drilling a well is disclosed. A first estimate is obtained of a location of the well with respect to a reference well at a selected depth. A magnetic measurement is obtained at the selected depth using a sensor. The obtained magnetic measurement is related to a residual magnetic charge distribution in the reference well. An expected value of the magnetic measurement at the selected depth is determined from the residual magnetic charge distribution. A second estimate is obtained of the location of the well using the first estimate of the location, the obtained magnetic measurement and the expected value of the magnetic measurement. A drilling parameter of the well is altered using the second estimate of the location. | 05-01-2014 |
20140121972 | SYSTEM AND METHOD FOR WELL DATA ANALYSIS - A method of processing data generated from an energy industry or oilfield operation includes: receiving a data set representing parameter values generated during at least a portion of the operation, the parameter values including values of a plurality of parameters relating to the operation; dividing the data set into a plurality of data subsets, each data subset including values for multiple parameters; determining a measure of similarity between data in each subset relative to data in one or more other subsets; displaying a map of the data set in at least two dimensions, the map including a visual representation of each subset positioned relative to a visual representation of the one or more other subsets based on the measure of similarity; and analyzing the map to estimate a condition associated with the operation. | 05-01-2014 |
20140121973 | Prognostics And Health Management Methods And Apparatus To Predict Health Of Downhole Tools From Surface Check - A method includes analyzing historical surface check data to train classifiers indicative of data separation between healthy and unhealthy downhole tools. The method also includes developing, based on the classifiers, prognostics health and management algorithms to predict failures in the downhole tools. | 05-01-2014 |
20140136111 | OILFIELD PRODUCTION FORECASTING SYSTEM - A system, method and computer readable medium capable of improving the efficiency and accuracy of oilfield production forecasting operations is described herein. Measured oilfield production data may be utilized to generate estimates for the mean, covariance and noise. Refined estimates for the mean and the covariance may be generated using a Bayesian probabilistic updating algorithm. The refined estimates may be utilized to generate an oilfield production forecast having a refined exponential decline curve associated with the measured production data and one or more uncertainty designations. | 05-15-2014 |
20140136112 | PREDICTING PERFORMANCE OF GAS CONDENSATE RESERVOIRS - Multiphase flow behavior in gas condensate reservoirs is analyzed, and in particular estimating gas condensate well deliverability. Inflow performance relationship (IPR) measures for gas condensate wells are analytically generated and made available. The inflow performance relationship measures of gas condensate wells incorporate the effect of condensate banking as pressure near the well bore drops below the dew point. The inflow performance relationship measures are based on formation rock relative permeability data and Constant Composition Expansion (CCE) experiment data. | 05-15-2014 |
20140142854 | METHOD FOR LOCATING A MICROSEISMIC EVENT - A method of event location to avoid first break picking when signals are small or the ambient noise level is high is described. In this method traveltime associated with the maximum amplitude phases (for any mode of wave) are identified and picked from one or more sensors in an array. Difference between the arrival times are then calculated. A grid search (or optimization) techniques are then employed to search for the event location to match the observed time differences. | 05-22-2014 |
20140142855 | Wellbore Instrument Clock Oscillator and Instrument System Made Therewith - A clock oscillator includes a first crystal controlled oscillator, a second crystal controlled oscillator and a logic controller functionally coupled to the first and second crystal controlled oscillators. The logic controller is programmed to calculate a frequency of the first crystal controlled oscillator as a function of the frequency of the first crystal controlled oscillator with respect to a frequency of the second crystal controlled oscillator characterized with respect to an environmental parameter. | 05-22-2014 |
20140156191 | METHOD AND SYSTEM OF USING A DATA WEIGHTED ELECTROMAGNETIC SOURCE FOR TIME-LAPSE MONITORING OF A RESERVOIR PRODUCTION OR HYDRAULIC FRACTURING - A system and a method for time lapse monitoring of a target feature within a rock formation are provided. The system includes a data weighted electromagnetic source configured to generate an electromagnetic field in vicinity or at a surface of the rock formation; and an electromagnetic receiver configured to measure a component of the electromagnetic field generated by the source. The data weighted electromagnetic source includes a plurality of electromagnetic sources and an electromagnetic field contribution from each electromagnetic source is weighted so as to enhance the component of the electromagnetic field measured by the electromagnetic receiver. | 06-05-2014 |
20140156192 | SYSTEMS AND METHODS FOR DETERMINING POSITION OF MARKER DEPTH COORDINATES FOR CONSTRUCTION OF GEOLOGICAL MODEL OF DEPOSIT - The invention relates to constructing a geological model of oil or other mineral deposit. In particular, the invention refers to the method, device, and machine-readable data carrier intended for evaluating the correlation coefficient for a set of well log curves and determining the position of marker depths at which the coefficient of correlation is maximal. A technical result is the improved accuracy of evaluation of parameters used in the construction of geological model describing the location of oil or other deposits. The method makes enables calculation of the depths of marker in a group of wells, given the depths to this marker in another well group used as a reference set. For any well W where the marker depth is to be determined, wells from the reference group are chosen lying at specified distance from the well W and the well with the maximal correlation coefficient is chosen among them. | 06-05-2014 |
20140156193 | SYSTEM FOR DETERMINING POSITION OF MARKER DEPTH COORDINATES FOR CONSTRUCTION OF GEOLOGICAL MODEL OF DEPOSIT - A system for building a geological model of oil or other mineral deposit. In particular, the system allows the coefficients of correlation to be determined for a set of well-logging curves and marker depth positions to be established for which the values of correlation coefficient are maximal. A technical result is the improvement of the accuracy of evaluating the parameters that are used to construct a geological model of location of oil or other deposits. The system makes it possible, given a marker, which already has its marks in a group of wells, which is referred to as reference group, to calculate such marks for wells from another group. For any well W where the marker depth is to be determined, wells from the reference group are chosen lying within the specified distance from the well W, and a well with the maximal coefficient of correlation is chosen among them. | 06-05-2014 |
20140163886 | LOCATING ARRANGEMENT AND METHOD USING BORING TOOL AND CABLE LOCATING SIGNALS - An arrangement and an associated method are described in which a boring tool is moved through the ground within a given region along a path in which region a cable is buried. The boring tool and the cable transmit a boring tool locating signal and a cable locating signal, respectively. Intensities of the boring tool locating signal and the cable locating signal are measured along with a pitch orientation of the boring tool. Using the measured intensities and established pitch orientation, a positional relationship is determined to relative scale including at least the boring tool and the cable in the region. The positional relationship is displayed to scale in one view. The positional relationship may be determined and displayed including the forward locate point in scaled relation to the boring tool and the cable. Cable depth determination techniques are described including a two-point ground depth determination method. | 06-12-2014 |
20140172302 | Downhole Treatment Monitoring Systems and Methods Using Ion Selective Fiber Sensors - A disclosed system includes a plurality of ion selective fiber sensors configured to measure treatment concentration variance, and a computer in communication with the plurality of ion selective fiber sensors. The computer determines treatment coverage for different downhole zones using information received from the plurality of ion selective fiber sensors. A disclosed method includes collecting data from a plurality of ion selective fiber sensors configured to measure treatment concentration variance. The method also includes determining treatment coverage for different downhole zones using information received from the plurality of ion selective fiber sensors. A disclosed downhole treatment management system includes a data analysis unit that collects data from a plurality of downhole ion selective fiber sensors configured to measure treatment concentration variance, and that determines treatment coverage for different downhole zones using the collected data. The downhole treatment management system also includes a treatment control interface in communication with the data analysis unit. The treatment control interface updates treatment operations using treatment coverage information determined by the data analysis unit. | 06-19-2014 |
20140172303 | METHODS AND SYSTEMS FOR ANALYZING THE QUALITY OF A WELLBORE - A method of performing wellbore operations includes calculating, based on measurements obtained by drilling a wellbore, at least one wellbore quality factor of a wellbore quality index; and performing at least one wellbore operation in a wellbore through a subterranean formation, based on the at least one calculated wellbore quality factor. | 06-19-2014 |
20140188391 | SYSTEMS AND METHODOLOGY FOR DETECTING A CONDUCTIVE STRUCTURE - Various embodiments include apparatus and methods to detect and locate conductive structures below the earth's surface. Tools can be configured with receiving sensors arranged to receive signals generated from a conductive structure in response to a current flowing on the conductive structure. Magnetic-related values from the signals can be processed, relative to the tool, to determine a position of a conductive structure from which the signal was generated in response to current flowing on the conductive structure. Additional apparatus, systems, and methods are disclosed. | 07-03-2014 |
20140222342 | 3-D Well Log Invention - In an embodiment, creation of a continuous three dimensional array of data from digital information obtained from a wellbore, and representation in a seismic data formatted dataset. In an embodiment, providing the capability to export stratigraphic interpretations made while working within the 3D-log data volume back to any wellbore that is encompassed within the areal extent of the 3D-log data volume. In one embodiment, a 2D well grid creation process comprises the steps of (a) selecting an initial grid spacing, (b) assigning wells from a dataset of well data to closest nodes in the grid, (c) if a plurality of wells are assigned to a single node after completing step (b), narrowing the grid spacing and repeating step (b) until no more than one well is assigned to any node. In an embodiment the non-well nodes are populated by extrapolating from adjacent single well nodes. | 08-07-2014 |
20140236485 | RECOVERABLE DATA ACQUISITION SYSTEM AND METHOD OF SENSING AT LEAST ONE PARAMETER OF A SUBTERRANEAN BORE - A recoverable data acquisition system includes at least one sensor positionable within a tubular of a completion system that is recoverable therefrom | 08-21-2014 |
20140244173 | METHOD AND SYSTEM FOR MONITORING DOWNHOLE ASSETS - A method of monitoring downhole assets includes tracking a location of a downhole asset relative to a first environment. The configuration information for the downhole asset is acquired, where the configuration information comprises a measurement of one or more forces applied to the downhole asset during assembly of the downhole asset in the first environment. A service life of the downhole asset is determined from the configuration information. One or more parameters related to usage of the downhole environment in a second environment are measured. A remainder of the service life of the downhole asset is determined by reducing the service life by an amount proportional to usage of the downhole asset as indicated by the measurement related to usage of the downhole asset. The remaining service life may be used to automatically initiate an order for new parts. A system of monitoring downhole assets is also disclosed. | 08-28-2014 |
20140278110 | TARGETED SURVEY DESIGN UNDER UNCERTAINTY - A method, apparatus, and program product utilize global sensitivity analysis (GSA) based on variance decomposition to calculate and apportion the contributions to a total variance of a measurement signal from uncertain input parameters of a subsurface model in connection with designing targeted surveys. Through the use of global sensitivity analysis in this manner, the geometry for a survey may be determined based on a desired target of the design, e.g., based on spatial properties (e.g., reservoir zone of interest) and/or physical properties (e.g., porosity, fluid density, rock physics properties) to select locations (e.g., source-receiver pairs) with greater uncertainty contributions from parameter group(s) of interest. | 09-18-2014 |
20140303894 | SYSTEM AND CONSOLE FOR MONITORING AND MANAGING CASING RUNNING OPERATIONS AT A WELL SITE - A well advisor system and console for monitoring and managing installation of casing and tubular goods in a well. The system may be accessed through one or more workstations, or other computing devices, which may be located at a well site or remotely. The system is in communication with and receives input from various sensors. It collects real-time sensor data sampled during operations at the well site. The system processes the data, and provides nearly instantaneous numerical and visual feedback through a variety of graphical user interfaces (“GUIs”), which are presented in the form of an operation-specific console. | 10-09-2014 |
20140309936 | SYSTEM AND CONSOLE FOR MONITORING AND MANAGING CEMENTING OPERATIONS AT A WELL SITE - A well advisor system and console for monitoring and managing cementing operations in a well. The system may be accessed through one or more workstations, or other computing devices, which may be located at a well site or remotely. The system is in communication with and receives input from various sensors. It collects real-time sensor data sampled during operations at the well site. The system processes the data, and provides nearly instantaneous numerical and visual feedback through a variety of graphical user interfaces (“GUIs”), which are presented in the form of an operation-specific console. | 10-16-2014 |
20140316705 | Oil Based Drilling Mud Filtrate Contamination Monitoring Using Gas To Oil Ratio - A method for monitoring oil based mud filtrate contamination is provided including steps of analytically dividing a fluid stream into two parts, determining a gas/oil ratio for a native fluid determining an apparent gas/oil ratio for the contaminated fluid and determining on a volume fraction, an oil based contamination level based upon the gas/oil ratio for the native fluid and the apparent gas/oil ratio for the contaminated fluid. | 10-23-2014 |
20140350857 | Method Of Mapping A Subterranean Formation Based Upon Wellbore Position And Seismic Data And Related System - A method of mapping a subterranean formation having at least one wellbore therein may include operating an electromagnetic (EM) signal source and an EM receiver to generate wellbore position data. The method may also include operating a seismic signal source and a seismic receiver to generate seismic data, and generating subterranean formation data based upon the wellbore position data and the seismic data. | 11-27-2014 |
20140358443 | System For Computing The Radius Of Investigation In A Radial, Composite Reservoir System - A system for calculating the radius of investigation of a radial, composite reservoir, comprises a processor; a memory and, preferably, a clock electronically coupled to the processor; a display electronically coupled to said processor; and an electronic input coupled to said processor. The processor is programmed to calculate the radius of investigation, at any given time, in the reservoir based upon a plurality of user inputs including the number of concentric regions n into which the reservoir is to be divided, a starting time or elapsed time, and data relating to the reservoir rock, fluids, and geometries of each of the n regions. The processor computes the radius of investigation using at least one of Equations (1), (2) and (6) through (12) set forth in the specification, if using the System of U.S. Oilfield Units, or using an equivalent equation if using other units. | 12-04-2014 |
20140365129 | OILFIELD EQUIPMENT IDENTIFICATION METHOD AND APPARATUS - A system comprising a piece of oilfield equipment, an identifier assembly and a reader. The piece of oilfield equipment has an exterior surface. The identifier assembly comprises an identification tag storing a unique identifier. The identification tag is capable of outputting a signal indicative of the unique identifier. The identification tag is mounted to the exterior surface of the piece of oilfield equipment beyond an external surface perimeter of the piece of oilfield equipment such that the identification tag is isolated from the exterior surface of the piece of oilfield equipment. The reader has an antenna receiving the signal indicative of the unique identifier from the identification tag. | 12-11-2014 |
20150019134 | Wellbore Positioning System and Method - A method and a system are provided for determining the relative positions of a wellbore and an object. The wellbore is represented by a first ellipse and the object is represented by a second ellipse. The first ellipse represents the positional uncertainty of the wellbore and the second ellipse represents the positional uncertainty of the object. The method includes receiving input data relating to a measured or estimated position of the wellbore and the object. In addition, the method includes calculating an expansion factor representing an amount by which one, or both, of the first ellipse and the second ellipse can be expanded with respect to one or both of respective first and second sets of elliptical parameters so that the first and second ellipses osculate. Further, the method includes determining, based on the calculated expansion factor, position data indicative of the relative positions of the wellbore and the object. | 01-15-2015 |
20150025805 | Method for Locating Casing Downhole Using Offset XY Magnetometers - An apparatus, method and computer-readable medium for locating a joint of a casing disposed in a borehole are disclosed. The apparatus includes a sensor oriented in a plane orthogonal to a longitudinal axis of the casing. The sensor measures a magnetic field induced in the casing by the earth's magnetic field. A tool conveys the sensor through the casing along a path that is radially offset from a longitudinal axis of the casing. Transverse magnetic field measurements are obtained by the sensor at a plurality of depths along the casing. A change in the transverse measurements is identified and used to determine the location of the casing joint. | 01-22-2015 |
20150039230 | DOWNHOLE FORMATION TESTING WITH AUTOMATION AND OPTIMIZATION - A method, and corresponding system, for formation testing includes establishing a control parameter and a test criterion for testing a formation, providing a formation tester equipped with the control parameter and the test criterion in a well bore at a test location, performing a first formation test, controlling the first formation test using the control parameter and the test criterion, collecting test data from the first formation test, and adjusting the control parameter using the test data. The method may include performing a second formation test, and controlling the second formation test using the adjusted control parameter and the test criterion. The method may include collecting additional test data from the second formation test, and readjusting the control parameter using the additional test data. | 02-05-2015 |
20150066371 | Integrated Oilfield Decision Making System and Method - A method for acquiring and processing wellbore measurements includes measuring at least one wellbore parameter. The measured wellbore parameters are communicated to a data hub. A computer in signal communication with the data hub automatically processes the measured wellbore parameter using a predefined automatic process. The automatically processed measured wellbore parameter is communicated to at least one user interface based on assigned tasks of a user interacting with the at least one user interface with respect to a wellbore construction procedure. | 03-05-2015 |
20150088424 | IDENTIFYING GEOLOGICAL FORMATION DEPTH STRUCTURE USING WELL LOG DATA - A method for performing a field operation of a field having a subterranean formation. The method includes analyzing, by a computer processor, a plurality of training well logs of a plurality of training wells in the field to generate a plurality of training well markers, wherein the plurality of training well markers identify where the plurality of training wells intercept a plurality of geologic interval boundaries in the subterranean formation, propagating, by the computer processor and onto a target well log of a target well in the field, the plurality of training well markers to generate a plurality of target well markers, wherein the plurality of target well markers identify where the target well intercepts the plurality of geologic interval boundaries, and performing the field operation based at least on identifying where the target well intercepts the plurality of geologic interval boundaries. | 03-26-2015 |
20150088425 | System, Method & Computer Program Product to Simulate the Progressive Failure of Rupture Disks in Downhole Environments - Systems and related methods to simulate, predict, and report progressive failures of rupture disks in response to thermal expansion of trapped annular fluids. | 03-26-2015 |
20150094958 | COMBINING MULTIPLE GEOPHYSICAL ATTRIBUTES USING EXTENDED QUANTIZATION - Four or more seismic attributes are integrated or merged into imaging formats and displayed for geological interpretation via extended quantization. Multi-attribute integration and classification improves the ability to identify geologic facies, and reservoir properties such as thickness, fluid type, or fracture intensity and orientation. The extended quantization groups up to eight attributes as a single attribute for geophysical data classification. Data group reduction criteria are provided to reveal common geological targets in the data, while preserving small variations or thin layers often found in hydrocarbon reservoirs. By combining multiple attributes, image quality is enhanced while providing analysts the ability to observe channels that might not be visible in any single attribute. | 04-02-2015 |
20150094959 | HETEROGENEOUS LOG ANALYSIS - A method and system are provided for heterogeneous log analysis. The method includes performing hierarchical log clustering on heterogeneous logs to generate a log cluster hierarchy for the heterogeneous logs. The method further includes performing, by a log pattern recognizer device having a processor, log pattern recognition on the log cluster hierarchy to generate log pattern representations. The method also includes performing log field analysis on the log pattern representations to generate log field statistics. The method additionally includes performing log indexing on the log pattern representations to generate log indexes. | 04-02-2015 |
20150106015 | LIFE-TIME MANAGEMENT OF DOWNHOLE TOOLS AND COMPONENTS - Systems, methods and devices for evaluating a condition of a downhole component of a drillstring. Methods include estimating a value of a tool parameter of the component at at least one selected position on the drillstring; and using the estimated value to evaluate the condition of the downhole component. The estimating is done using a trained artificial neural network that receives information from at least one sensor that is positionally offset from the selected position. The method may further include creating a record representing information from estimated values of the tool parameter at the at least one selected position over time. The at least one selected position may include a plurality of positions, such as positions at intervals along the component, including substantially continuously along the component. | 04-16-2015 |
20150106016 | MEASUREMENT CALIBRATION APPARATUS, METHODS, AND SYSTEMS - In some embodiments, an apparatus and a system, as well as a method and an article, may operate to determine spatial orientations of one or more transmitters attached to a first downhole component, relative to one or more receivers attached to a second downhole component, at common points in time during rotation of the first and the second downhole components. The first downhole component may be variably, rotationally coupled to the second downhole component. Further activity may include transforming raw measurements of transmitter signals provided by the receiver(s) into calibrated measurements based on the spatial orientations at the common points in time. Additional apparatus, systems, and methods are described. | 04-16-2015 |
20150112596 | ESTIMATION OF FAST SHEAR AZIMUTH, METHODS AND APPARATUS - Various embodiments include apparatus and methods to operate to record a plurality of acoustic waveforms, to generate an objective function based on the plurality of acoustic waveforms, and to estimate a global minimum of the objective function. The plurality of acoustic waveforms can correspond to a plurality of acoustic dipole receivers azimuthally disposed around a tool to which the receivers are attached. Additional apparatus, systems, and methods are disclosed. | 04-23-2015 |
20150120194 | High Resolution Distributed Temperature Sensing For Downhole Monitoring - A method, system and computer-readable medium for obtaining a temperature profile of a wellbore is disclosed. Raw temperature data are obtained from the wellbore using a distributed temperature sensing system. The raw temperature data includes noise. A numerical decomposition is performed on the raw temperature data within a dynamic window in a measurement space of the raw temperature data to obtain decomposition terms of order of first order and higher. An adaptive filter is applied to the decomposition terms of first order and higher within the dynamic window to reduce noise from the decomposition terms of first order and higher. The filtered decomposition terms of first order and higher are used to obtain a temperature profile of the wellbore. | 04-30-2015 |
20150134253 | METHOD AND APPARATUS FOR MONITORING A DOWNHOLE TOOL - A telemetry system and method configured to communicate a wellbore parameter such as fluid composition, temperature, and pressure. In one embodiment, a plurality of tracers is stored downhole, and each of the tracers represents a different value of the wellbore parameter. After measuring the wellbore parameter, the measured value is correlated to one or more of the plurality of tracers that is equivalent to the measured value of the downhole parameter. The one or more tracers representing the measured value are then released from their respective containers to travel upstream. A sensor located upstream may detect the one or more tracers, which are then correlated back to obtain the measured value of the wellbore parameter. In another embodiment, ratiometric amounts of the tracers may be used to represent additional values of the wellbore parameter. | 05-14-2015 |
20150142315 | MARINE RISER MANAGEMENT SYSTEM AND AN ASSOCIATED METHOD - In accordance with one aspect of the present technique, a method is disclosed. The method includes receiving sensor data from a first set of sensors mechanically coupled to a first riser joint of a marine riser. The method also includes analyzing the sensor data to determine a condition of the first riser joint and determining whether the condition satisfies a transmission criterion. The method further includes sending a notification including the condition to an on-vessel monitor communicatively coupled to the marine riser in response to determining that the condition satisfies the transmission criterion. | 05-21-2015 |
20150142316 | NMR LOGGING INTERPRETATION OF SOLID INVASION - A method for estimating an effect on nuclear magnetic resonance (NMR) measurements of an invasion of solid particles into pores of an earth formation penetrated by a borehole includes conveying a carrier through the borehole and performing an NMR measurement on a volume of interest in the formation to provide a relaxation time constant using an NMR tool disposed at the carrier. The method further includes receiving information describing the solid particles in the pores and quantifying, using a processor, an effect on the measured relaxation time constant due to the invasion of solid particles using the received information. | 05-21-2015 |
20150142317 | Method And Apparatus For Consistent And Robust Fitting In Oil Based Mud Filtrate Contamination Monitoring From Multiple Downhole Sensors - A method for performing contamination monitoring through estimation wherein measured data for optical density, gas to oil ratio, mass density and composition of fluid components are used to obtain plotting data and the plotting data is extrapolated to obtain contamination levels. | 05-21-2015 |
20150293071 | METHODS AND APPARATUS FOR COMBINING TECHNICAL AND REGULATORY INFORMATION COMPRISING THE COMPILING AND NORMALIZATION OF DISPARATE TECHNICAL, REGULATORY AND OTHER DATA - A computer system presents information related to drilling operations using a computer display, the method comprising: for each of a plurality of drilling sites, obtaining chemical composition data of hydraulic fluids used in the drilling site, wherein the chemical composition data is obtained from a first data source, for each of the plurality of drilling sites, obtaining well yield data for the drilling site, wherein the well yield data is obtained from a second data source distinct from the first data source, matching the chemical composition data and the well yield data by drilling site, and displaying, on the computer display, a combination of chemical composition and well yield for the plurality of drilling sites. The matching might be based on drill site parameters, such as geographic location and/or geologic characteristics. | 10-15-2015 |
20150293259 | SYSTEM AND METHOD FOR CLOUD LOGGING SYSTEM - A method for implementing a wireline logging cloud computing system includes transforming the single computing device in use at well-sites to perform tool processing into a cloud configuration that can use multiple computing devices. The method includes using a logging manager user interface to communicate tool processing requests and using a logging manager service Cprovider to create a cloud configuration for the tool processing. The method further may include implementing a post-processing manager for implementing cloud computing for post-processing tasks. | 10-15-2015 |
20150300158 | APPARATUS AND METHODS TO FIND A POSITION IN AN UNDERGROUND FORMATION - Various embodiments include apparatus and methods related to finding a position in an underground formation. Apparatus and methods can include receiving signals from a receiver in an underground formation in response to signals generated from transmitting sources, each of the transmitting sources located at a known position; and processing the received signals, based on the signals generated from the transmitting sources, to determine the position of the receiver. A number of techniques can be applied to processing the received signal. Additional apparatus, systems, and methods are disclosed. | 10-22-2015 |
20150301224 | System, Method and Computer Program Product For Evaluating and Ranking GeoBodies Using A Euler Characteristic - A system and method utilizing a modified Euler Characteristic to numerically quantify and rank connectivity of a geobody within a reservoir model based upon a range of petrophysical properties. | 10-22-2015 |
20150308264 | Downhole Real-Time Filtrate Contamination Monitoring - A method includes identifying linearly behaving data within obtained data associated with fluid obtained from a subterranean formation. Shrinkage factor is determined based on the linearly behaving data. A function relating GOR data of the obtained fluid with the determined shrinkage factor is determined. A first linear relationship between optical density (OD) data of the obtained fluid and the function is determined. A second linear relationship between density data of the obtained fluid and the function is determined. An oil-based mud (OBM) filtrate contamination property of OBM filtrate within the obtained fluid based on the first linear relationship is determined. A native formation property of native formation fluid within the obtained fluid based on the second linear relationship is determined. A volume fraction of OBM filtrate contamination within the obtained fluid based on the OBM filtrate contamination property and the native formation property is estimated. | 10-29-2015 |
20150315903 | SYSTEM AND CONSOLE FOR MONITORING AND MANAGING PRESSURE TESTING OPERATIONS AT A WELL SITE - A well advisor system and console for monitoring and managing pressure testing operations at a well site. The system may be accessed through one or more workstations, or other computing devices, which may be located at a well site or remotely. The system is in communication with and receives input from various sensors. It collects real-time sensor data sampled during operations at the well site. The system processes the data, and provides nearly instantaneous numerical and visual feedback through a variety of graphical user interfaces (“GUIs”), which are presented in the form of an operation-specific console. The input and data provides information related to pressure testing at a well site. | 11-05-2015 |
20150316669 | PROCESSING MICROSEISMIC DATA - A method of processing microseismic data obtained by a plurality of receivers. The method includes identifying a plurality of subsets of the microseismic data, wherein each subset of the microseismic data corresponds, respectively, to a microseismic event occurring underground at a known source location. The method also includes, for each combination of source location and receiver: determining a travel-time adjustment based on a spatial relationship between the source location and the receiver; and applying the travel-time adjustment to a waveform in a subset of the microseismic data that corresponds to the combination of source location and receiver. The method also includes combining the adjusted subsets of microseismic data to form composite microseismic data. The composite microseismic data may have a higher signal to noise ratio compared with the individual subsets of microseismic data, and as such, may be useful in determining a model that describes one or more properties relating to the propagation of elastic waves from at least one source location to a plurality of receivers, e.g. a static model or total travel-time model. | 11-05-2015 |
20150330167 | SYSTEMS AND METHODS FOR MONITORING AND CHARACTERIZING FLUIDS IN A SUBTERRANEAN FORMATION USING HOOKLOAD - Systems and methods for monitoring and characterizing fluids in a subterranean formation are provided. In one embodiment, a method for monitoring fluids in a well bore penetrating a subterranean formation is provided, the method comprising: determining an actual buoyed hookload of an apparatus at least partially disposed in the well bore wherein a first set of fluids are present therein; comparing the actual buoyed hookload to a calculated buoyed hookload of the apparatus, wherein the calculated buoyed hookload is based in part on the unbuoyed hookload of the apparatus, and the properties of a second set of fluids that are assumed to be present in the well bore; and determining at least one property of the first set of fluids based in part on the comparison of the actual buoyed hookload to the calculated buoyed hookload. | 11-19-2015 |
20150338543 | RELATING TO GEOLOGICAL LOGGING - A method of improving geological log data comprises the steps of:
| 11-26-2015 |
20150346378 | Identifying and Removing Artifacts from Multi-Dimensional Distribution Functions - Systems and methods for generating a multi-dimensional distribution function. First data and second data may be received in response to one or more radiofrequency pulses that are transmitted into a subterranean formation. The first data may include Carr-Purcell-Meiboom-Gill data, and the second data may include diffusion editing data with initial echo spacings longer than subsequent echo spacings. The second data may be inverted. A multi-dimensional distribution function may be determined using the inverted second data. | 12-03-2015 |
20150346381 | Downhole Ranging From Multiple Boreholes - Downhole ranging from multiple wellbores. In one example, multiple transmitters and multiple receivers are disposed in multiple wellbores to exchange electromagnetic signals. By implementing a full compensation technique, a computer system determines multiple compensated signals. A compensated signal is determined from a signal received from a first wellbore and a second signal received from a second wellbore. In another example, a first transmitter is disposed in a first wellbore, a first receiver is disposed in a second wellbore, and either a second transmitter or a second receiver is disposed in either the first wellbore or the second wellbore. By implementing partial compensation techniques, a computer system determines compensated signals. Using the compensated signals, the computer system determines a position of a first wellbore relative to a second wellbore, and provides the position. | 12-03-2015 |
20150346384 | Enhanced Visualization of Logging Information in Cased Wells Using Dynamic Normalization - Systems and methods for enhancing local heterogeneity of cased-hole well logging information are provided. An example of such a cased-hole well logging system may include a downhole tool and data processing circuitry. The downhole tool may obtain cased-hole logging information over a depth of a cased wellbore. The data processing circuitry may normalize at least some of the cased-hole logging information over at least a first subsection of the depth and may map visualization indicators to the normalized cased-hole logging information. The mapping of the visualization indicators to the normalized cased-hole logging information may enable an analyst to identify casing and/or annulus material properties not readily apparent using exclusively absolute visualizations of the cased-hole logging information. | 12-03-2015 |
20150362620 | Intelligent Management of Data Acquisition - A data acquisition system that includes an acquisition software module having a memory device, and a measurement device that includes sensor interface modules and sensors is provided. The acquisition software module is operatively connected to the measurement device. The data acquisition system is disposed at some desired location and data is acquired. Acquiring data includes performing an operation such as auto-resend, auto-save, and auto-recovery. The measurement device may also include a front end acquisition module and field boxes. The sensor interface modules may provide the state of each sensor, detect disconnection of any sensor, and/or detect a fault state for any sensor. The acquisition software module may determine the states of certain components of the data acquisition system. The acquisition software module can receive topology data from the measurement device and store the data into its memory device. The acquired data may be monitored in real-time while operations are performed. | 12-17-2015 |
20150362621 | Calibrations for A Well Drilling Apparatus - A calibration quality associated with a well-drilling apparatus can be determined. A projected value and a calculated value based upon a data set corresponding to a time interval section of a rig state of the well-drilling apparatus can be determined. A difference can be calculated between the projected value and the calculated value. A quality indicator can be applied to the difference, and a calibration quality based upon the application of the quality indicator can be determined. | 12-17-2015 |
20150377012 | Anomaly Recognition System And Methodology - A technique facilitates anomaly recognition and tracking in a variety of components, such as tubular components. The technique comprises sensing for anomalies in the component, and storing detected anomalies in a storage medium. The detected anomalies are matched with stored digital descriptions of anomalies. The stored digital descriptions may comprise anomalies of similar types and/or anomalies detected on the specific component being tested. The detected anomalies are ranked according to similarities with respect to the stored digital descriptions. | 12-31-2015 |
20160003028 | Automatic Wellbore Survey Evaluation - A method for automatically evaluating a survey of a subterranean wellbore includes receiving downhole navigation sensor measurements and automatically evaluating surface sensor data obtained at substantially the same time as the navigation sensor measurements to determine whether or not the navigation sensor measurements were obtained during satisfactory wellbore survey conditions. The navigation sensor measurements are evaluated to determine whether or not they meet certain predetermined conditions necessary for obtaining a satisfactory survey. A survey recommendation is automatically generating based on the automatic evaluations performed. | 01-07-2016 |
20160010448 | ULTRASONIC CASING AND CEMENT EVALUATION METHOD USING A RAY TRACING MODEL | 01-14-2016 |
20160025877 | METHODS AND SYSTEMS FOR DETERMINING WELL DRILLING PATHS IN A HYDROCARBON FIELD - Computing systems, computer-readable media, and methods may include determining, for a hydrocarbon field, a hazard cube that represents one or more hazards associated with drilling a new well in the hydrocarbon field. The method also includes determining one or more drilling constraints for drilling the new well in the hydrocarbon field. Further, the method includes generating a drilling volume for the hydrocarbon field. The drilling volume may comprise a three dimensional representation of one or more areas of the hydrocarbon field that may be drilled to avoid the hazards and satisfy the one or more drilling constraints. Additionally, the method includes displaying the drilling volume for analysis by a user. | 01-28-2016 |
20160032719 | SYSTEMS AND METHODS FOR OPTICAL FLUID IDENTIFICATION APPROXIMATION AND CALIBRATION - Systems and methods for optical fluid identification approximation and calibration are described herein. One example method includes populating a database with a calculated pseudo optical sensor (CPOS) response of a first optical tool to a first sample fluid. The CPOS response of the first optical tool may be based on a transmittance spectrum of a sample fluid and may comprise a complex calculation using selected components of the first optical tool. A first model may be generated based, at least in part, on the database. The first model may receive as an input an optical sensor response and output a predicted fluid property. A second model may also be generated based, at least in part, on the database. The second model may receive as an input at least one known/measured fluid/environmental property value and may output a predicted pseudo optical sensor response of the first optical tool. | 02-04-2016 |
20160033462 | WELLHEAD WATER QUALITY DETECTOR - A module gathers information about water quality indicators in the air above water in a water well and in the ambient air outside the water well. The module sends the information to a database. A detector tracks the substances present inside and outside the well and how it changes over time. | 02-04-2016 |
20160033671 | NUCLEAR MAGNETIC RESONANCE (NMR) INTERECHO INTERVAL CONTROL METHODS AND SYSTEMS - A nuclear magnetic resonance (NMR) logging tool includes a pulsed magnetic field source which provides an NMR logging pulse sequence having a reduced interecho interval (TE). A controller in communication with the pulsed magnetic field source provides a pulse sequence designed to substantially align an echo peak with a measurement deadtime boundary, yielding a partial spin echo data recovery which is at least partially compensated by a substantially higher measurement density. | 02-04-2016 |
20160041281 | SIGNAL PROCESSING DEVICE AND SIGNAL PROCESSING METHOD - A signal processing device includes a propagation speed calculating means for calculating strength and a direction of vibration in an underground structure region using a calculation model including data of a vibration propagation speed; a simulated propagation speed calculating means for inputting seismic source information to a calculation model and calculating the strength and the direction of the vibration in the underground structure region using the calculation model; and an update amount calculating means for calculating an update amount to update the calculation model, on the basis of propagation speed distribution information and simulated propagation speed distribution information. The calculation model is a solid model, the propagation speed calculating means calculates strength and a direction of first vibration using a first measurement signal input to the calculation model and calculates strength and a direction of second vibration using a second measurement signal input to the calculation model. | 02-11-2016 |
20160053603 | SYSTEM AND CONSOLE FOR MONITORING AND MANAGING WELL SITE OPERATIONS - A well advisor system and console for monitoring and managing well drilling and production operations. The system may be accessed through one or more workstations, or other computing devices, which may be located at a well site or remotely. The system is in communication with and receives input from various sensors. It collects real-time sensor data sampled during operations at the well site. The system processes the data, and provides nearly instantaneous numerical and visual feedback through a variety of graphical user interfaces (“GUIs”), which are presented in the form of an operation-specific console. The input and data provides information related to rate of penetration concerning a well being drilled, and present the information for related parameters in real time against a plotted “fairway” of determined maximum and minimum values, with a focus on the safety of the drilling operation. | 02-25-2016 |
20160053604 | SYSTEM AND CONSOLE FOR MONITORING AND MANAGING WELL SITE DRILLING OPERATIONS - A well advisor system and console for monitoring and managing drilling operations at a well site. The system may be accessed through one or more workstations, or other computing devices, which may be located at a well site or remotely. The system is in communication with and receives input from various sensors. It collects real-time sensor data sampled during operations at the well site. The system processes the data, and provides nearly instantaneous numerical and visual feedback through a variety of graphical user interfaces (“GUIs”), which are presented in the form of an operation-specific console. The input and data provides information related to drilling operations at a well site, including, but not limited to, hole cleaning status and wellbore stability. | 02-25-2016 |
20160053605 | SYSTEM AND CONSOLE FOR MONITORING AND MANAGING TRIPPING OPERATIONS AT A WELL SITE - A well advisor system and console for monitoring and managing tubular tripping operations at a well site. The system may be accessed through one or more workstations, or other computing devices, which may be located at a well site or remotely. The system is in communication with and receives input from various sensors. It collects real-time sensor data sampled during operations at the well site. The system processes the data, and provides nearly instantaneous numerical and visual feedback through a variety of graphical user interfaces (“GUIs”), which are presented in the form of an operation-specific console. The input and data provides information related to tubular tripping operations at a well site. | 02-25-2016 |
20160054462 | LOGGING DATA IDENTIFICATION SYSTEM USING REFLECTION METADATA - A system for identifying logging data is disclosed. The system may include one or more logging data assemblies. The logging data assemblies may include a plurality of raw logging data, one or more application components, logging data metadata associated with at least one of the raw logging data, and application component metadata associated with the one or more application components. The system may further include an application program for receiving the logging data metadata and application component metadata using a reflection mechanism. The application program may use the application component metadata to convert the raw logging data to an output answer. | 02-25-2016 |
20160061022 | Hydrocarbon Well Performance Monitoring System - A method for real-time data acquisition and presentation of force, position, load, pressures, and movement within a subterranean well pumping system, such as an oil well. Data is gathered using sensors attached to a surface level pump drive and wellhead system. Well structural data and well production data are combined therewith to generate a real-time display of down-hole well operation, including animated graphics of the pump operation, including pump movement, rod and tubing stretch, fluid movement, gas compression, system forces, and fluid pressures. Liquid levels are tested using an acoustic liquid level instrument, and incorporated to improve well performance analysis. | 03-03-2016 |
20160061986 | Formation Property Characteristic Determination Methods - A method for analyzing at least one characteristic of a geological formation may include obtaining measured data for the geological formation based upon a logging tool, and minimizing an objective function representing at least an L | 03-03-2016 |
20160084817 | Method to Enhance Exploration, Development and Production of Hydrocarbons Using Multiply Substituted Isotopologue Geochemistry, Basin Modeling and Molecular Kinetics - A method and system are described that may be used for exploration, production and development of hydrocarbons. The method and system may include analyzing a sample for a geochemical signature, wherein the geochemical signature includes a multiply substituted isotopologue signature and/or a position specific isotope signature. Then, the historical temperature, type of alteration and/or extent of alteration may be determined from the signature(s) and used to develop or refine an exploration, development or production strategy. | 03-24-2016 |
20160091623 | Method and Device for Estimating Quality Factor Based on Zero Offset Vertical Seismic Profile Data - This disclosure provides a method and a device for estimating a quality factor based on zero offset VSP (Vertical Seismic Profiling) data, wherein the method includes the following steps: determining a transmission coefficient between two adjacent VSP channels based on an interval velocity of a seismic wave in the zero offset VSP data; and determining the transmission coefficient as an indeterminate coefficient in an objective function of an index method, and estimating the quality factor according to the objective function of the index method. | 03-31-2016 |
20160102542 | Systems and Methods for Real-Time Monitoring of Downhole Pump Conditions - Systems and methods for improved monitoring of downhole pump conditions may provide real-time monitoring, high accuracy, and low noise when monitoring downhole pump conditions. Systems for monitoring pump conditions may be coupled to any suitable sucker rod pump, and may gather desired data from the pump. The desired data may be gathered at several points-in-time during a pump stroke to provide real-time monitoring. A wave equation corresponding to the behavior of the downhole pump may be solved when the desired data is received to provide real-time monitor. In some embodiments, the wave equation may be solved by separating it into static and dynamic solutions. In some embodiments, the dynamic solution of the wave equation may be solved utilizing an integral-based method. | 04-14-2016 |
20160102543 | Methods for Estimating Wellbore Gauge and Dogleg Severity - Methods for measuring wellbore gauge and dogleg severity are disclosed. The methods include deploying a downhole tool in a subterranean wellbore. The downhole tool includes first and second axially spaced stabilizers deployed on at least one tool body section coupled to a universal joint. The method for measuring wellbore gauge further includes measuring first and second axial directions of the tool body section when the universal joint is tilted in corresponding first and second cross-axial directions and processing the first and second measured axial directions to estimate the wellbore gauge. The method for measuring dogleg severity further includes measuring first and second tilt angles of the universal joint when the universal joint is tilted in corresponding first and second cross-axial directions and then processing the first and second measured tilt angles to estimate the dogleg severity. | 04-14-2016 |
20160108704 | METHODS AND SYSTEMS FOR DETERMINING MANUFACTURING AND OPERATING PARAMETERS FOR A DEVIATED DOWNHOLE WELL COMPONENT - Systems and methods for determining manufacturing or operating parameters for a deviated downhole well component, including a method that includes representing a tubular string as nodes separated by segments, determining transfer matrices for determining an i | 04-21-2016 |
20160115768 | METHOD FOR ANALYZING MULTI PHASE AND HEAT FLOW OF FLUIDS IN RESERVOIR AND RECORDING MEDIA THEREFOR - A method for analyzing multi phase and heat flow in a reservoir is disclosed. | 04-28-2016 |
20160123121 | METHOD OF SEARCHING FOR OIL-GAS RESERVOIR BASED ON TRAP-3D SOFTWARE - The present invention provides a method of searching for oil-gas reservoir based on TRAP-3D software, including: establishing a three-dimensional lithology and fault data cube of an exploration working area according to three-dimensional seismic data and logging data; dividing the three-dimensional lithology and fault data cube into several depth slices of the same depth, and performing an individual sand body unit division for each depth slice; sequentially inputting the depth slices of the three-dimensional lithology and fault data cube into the TRAP-3D software for oil-gas reservoir evaluation. The present invention imporves the accuracy of three-dimensional trap evaluation, is conducive to precise searching of the oil-gas reservoir, can plot a Sweet-Spot diagram on a plane, and get exhibits oil-gas trap amounts of different depths in a longitudinal direction, and can obtain a total trap amount of the oil gas reservoir in the exploration working area. | 05-05-2016 |
20160124110 | LOCATING ARRANGEMENT AND METHOD USING BORING TOOL AND CABLE LOCATING SIGNALS - An arrangement and an associated method are described in which a boring tool is moved through the ground within a given region along a path in which region a cable is buried. The boring tool and the cable transmit a boring tool locating signal and a cable locating signal, respectively. Intensities of the boring tool locating signal and the cable locating signal are measured along with a pitch orientation of the boring tool. Using the measured intensities and established pitch orientation, a positional relationship is determined to relative scale including at least the boring tool and the cable in the region. The positional relationship is displayed to scale in one view. The positional relationship may be determined and displayed including the forward locate point in scaled relation to the boring tool and the cable. Cable depth determination techniques are described including a two-point ground depth determination method. | 05-05-2016 |
20160131630 | Methods and Systems for Correction of Oil-Based Mud Filtrate Contamination on Saturation Pressure - Embodiments of the disclosure can include systems, methods, and devices for determining saturation pressure of an uncontaminated fluid. Downhole saturation pressure measurements and downhole OBM filtrate contamination of a contaminated fluid may be obtained and a relationship may be determined between the saturation pressure measurements and OBM filtrate contamination. The relationship may be extrapolated to zero OBM filtrate contamination to determine the saturation pressure of the uncontaminated fluid. In some embodiments, OBM filtrate contamination may be determined from downhole saturation pressure measurements during pumpout of a fluid. | 05-12-2016 |
20160131780 | METHOD FOR PROCESSING BOREHOLE SEISMIC DATA - Seismic data recorded by subsurface seismic sensors placed in a borehole, such as an oil or gas well, are transformed via a process of upward wavefield propagation to pseudo-receivers at the surface of the earth. The seismic data thus transformed can be processed as though the data had been recorded by the pseudo-receivers at the surface rather than in the borehole where the data were actually recorded. This method accurately accounts for seismic source statics, anisotropy, and all velocity effects between the real receivers in the borehole and the pseudo-receivers at the surface of the earth. | 05-12-2016 |
20160131792 | SYSTEM AND METHOD FOR FORMATION DETECTION AND EVALUATION - A method for locating planned markers within a log containing borehole data parses log data to locate an uncertainty region for a planned marker. A fingerprint match is located for the planned marker in the located uncertainty region. The located fingerprint match is saved. A determination is made if additional planned markers are present and returns to the step of parsing for a next planned marker if additional planned markers are present. | 05-12-2016 |
20160131801 | Hybrid Approach to Assisted History Matching in Large Reservoirs - Systems and methods for a hybrid approach to assisted history matching in large reservoirs based on a reservoir model built using connectivity between each production well and each corresponding injection well, aquifer or gas cap. | 05-12-2016 |
20160145994 | Evaluation Method and Evaluation Device for Water Breakthrough Risk of Production Wells in Aquifer Drive Gas Reservoirs - The present invention provides an evaluation method and an evaluation device for water breakthrough risk of gas wells in gas reservoirs with aquifers, the method comprising the following steps: building evaluation factors that influence water breakthrough risk of gas wells in gas reservoirs with aquifers; acquiring weight vectors of the evaluation factors based on an analytic hierarchy process; building a fuzzy relationship matrix between the water breakthrough risk of gas wells in gas reservoirs with aquifers and its evaluation factors; and synthesizing the fuzzy relationship matrix and the weight vectors according to a weighted average fuzzy synthesis operator, to acquire a comprehensive evaluation result of water breakthrough risk of gas wells in gas reservoirs with aquifers. The present invention improves the accuracy of the evaluation result of water breakthrough risk of the gas wells, and is able to obtain an evaluation result that is more consistent with the case of actual water breakthrough of gas wells in gas reservoirs with aquifers. | 05-26-2016 |
20160146965 | Validation of Depth-Depth Curves Using Time-Seismic Depth Interval Velocity - Systems and methods using a time-seismic-depth interval velocity curve and the difference between a time-depth interval velocity curve and a time-seismic depth interval velocity curve for validating depth-depth curves which calibrate a synthetic generated from well logs to depth seismic data. | 05-26-2016 |
20160161385 | SYSTEM AND METHOD FOR ESTIMATING MATERIAL DENSITY - A method implemented using one or more computer processors for estimating the density of a material in an annular space includes receiving detector data representative of scattered photons resulting from interaction of a material in an annular space with radiation from a radiation source and detected by a plurality of radiation detectors. The method further includes performing a set of Monte Carlo simulations and generating polynomial models of the detector data based on the set of Monte Carlo simulations. The method further includes estimating the density of the material at one or more locations within the annular space based upon the polynomial models and the detector data. | 06-09-2016 |
20160161462 | METHODS AND APPARATUS FOR THE DOWNHOLE ANALYSIS OF THE COMPOSITION OF FORMATION GASES - Methods and apparatus are provided for determining down-hole the composition of natural gas from a formation. Some methods include downhole measurements of the near-infrared spectra and the Joule-Thomson coefficient of the gas, and processing the results of the downhole measurements in order to obtain a determination of the amounts of a plurality of natural gas components such as CH | 06-09-2016 |
20160161627 | HOLOGRAPHIC TECHNIQUES FOR CORROSION EVALUATION OF WELLBORE PIPES - A method includes obtaining a first small defect response at a given frequency of a first small defect on a first wellbore pipe positioned within a wellbore. A Fourier transform of the first small defect response is then calculated, and a first measured response at the given frequency of a first arbitrary metal loss defect in the first wellbore pipe is obtained with a sensor of a pipe inspection tool. A Fourier transform of the first measured response is then calculated, and a magnitude of the first arbitrary metal loss based on the Fourier transform of the first small defect response and the Fourier transform of the first measured response is then estimated. | 06-09-2016 |
20160177679 | FLOODING ANALYSIS TOOL AND METHOD THEREOF | 06-23-2016 |
20160178799 | FLOODING ANALYSIS TOOL AND METHOD THEREOF | 06-23-2016 |
20160186531 | METHOD OF AND SYSTEM FOR REMOTE DIAGNOSTICS OF AN OPERATIONAL SYSTEM - A method of remotely reducing downtime of an operational system includes directly accessing information from the operational system by a diagnostic computer, the information accessed from at least one prime mover controller, a user interface computer, at least one switch, at least one networking connection, and at least one sensor configured to sense and capture a measurable parameter of the operational system; transmitting the information from the diagnostic computer to an off-site operations center; using the information at the off-site operations center to monitor, review or improve status and performance of components within the operational system; using the information at the off-site operations center to assess communication status and connectivity issues of connections between the components of the operational system; and, communicating issues with the operational system from the off-site operations center to the operational system. | 06-30-2016 |
20160186533 | A PREDICTIVE FLOW ASSURANCE ASSESSMENT METHOD AND SYSTEM - A system and method for predictive flow assurance assessment by measuring at least one actual parameter related to a multiphase fluid mixture flowing in a main flow line, taking a sample from the multiphase fluid mixture flowing in the main flow line, modifying at least one control parameter of the sample until a transition appears, wherein said transition would cause a flow issue when occurring in the main flow line, detecting the transition of the sample and determining a corresponding transition value associated with the at least one control parameter, calculating a difference between the at least one actual parameter and the at least one transition value, said difference being representative of a margin relatively to a similar transition appearance in the main flow line causing a flow issue in the main flow line, and implementing a flow issue preventing step when the difference exceeds a given threshold. | 06-30-2016 |
20160186559 | Data Extraction for OBM Contamination Monitoring - Disclosed are methods and apparatus obtaining in-situ, real-time data associated with a sample stream obtained by a downhole sampling apparatus disposed in a borehole that extends into a subterranean formation. The obtained data includes multiple fluid properties of the sample stream. The sample stream includes native formation fluid from the subterranean formation and filtrate contamination resulting from formation of the borehole in the subterranean formation. The obtained data is filtered to remove outliers. The filtered data is fit to each of a plurality of models each characterizing a corresponding one of the fluid properties as a function of a pumpout volume or time of the sample stream. based on the fitted data, a start of a developed flow regime of the native formation fluid within the subterranean formation surrounding the borehole is identified. | 06-30-2016 |
20160186562 | Estimating Contamination During Focused Sampling - Disclosed are methods and apparatus pertaining to processing in-situ, real-time data associated with fluid obtained by a downhole sampling tool. The processing includes generating a population of values for Ĉ, where each value of Ĉ is an estimated value of a fluid property for native formation fluid within the obtained fluid. The obtained data is iteratively fit to a predetermined model in linear space. The model relates the fluid property to pumpout volume or time. Each iterative fitting utilizes a different one of the values for Ĉ. A value Ĉ* is identified as the one of the values for Ĉ that minimizes model fit error in linear space based on the iterative fitting. Selected values for Ĉ that are near Ĉ* are then assessed to determine which one has a minimum integral error of nonlinearity in logarithmic space. | 06-30-2016 |
20160187508 | SYSTEM AND METHOD OF FACILITATING THE RETRIEVAL AND ANALYSIS OF DATA - The present disclosure describes a system, method, and computer readable medium capable of providing a data analysis/visualization application through which the user may seamlessly retrieve and analyze data from a variety of sources using a single interface. In one embodiment, this may be accomplished by applying data designations to at least a portion of the stored oilfield data and using the data designations to search for and retrieve oilfield data of interest to the user. In one embodiment, the data designations, and their association(s) with the oilfield data, may facilitate the retrieval and display of related actions such as calculations, alarms, workflow(s), notifications and unit conversions. In one embodiment, data designations may include one or more metadata flags applied to one or more pieces of oilfield data. | 06-30-2016 |
20160187512 | DETECTING AND ESTIMATING ANISOTROPY ERRORS USING FULL WAVEFORM INVERSION AND RAY BASED TOMOGRAPHY - Anisotropy errors in seismic velocity data for a geophysical structure are detecting by obtaining seismic data for the geophysical structure, using conventional ray-based tomography to generate an initial model of the geophysical structure, the initial model containing initial values for Thomsen parameters velocity along an axis of symmetry, epsilon and delta, using a first inversion process preferably transmission-based full waveform inversion of the seismic data to obtain updated values for epsilon and using a second inversion process preferably ray-based reflection tomography of the seismic data to obtain updated values for velocity along the axis of symmetry. | 06-30-2016 |
20160187525 | Methods and Systems of Electromagnetic Interferometry for Downhole Environments - A disclosed electromagnetic (EM) interferometry system includes a first EM field sensor at a first position in a downhole environment. The system also includes a second EM field sensor at a second position in the downhole environment. The system also includes a processing unit that receives a first EM field measurement from the first EM field sensor and a second EM field measurement from the second EM field sensor. The processing unit derives a response of the first EM field sensor to a virtual EM field source at the second position by cross-correlating the first EM field measurement with the second EM field measurement. The processing unit also performs an inversion process based at least in part on the derived response to obtain a model of subsurface formation properties | 06-30-2016 |
20160195632 | EARTH SURVEYING FOR IMPROVED DRILLING APPLICATIONS | 07-07-2016 |
20160201412 | REAL TIME MUD MONITORING | 07-14-2016 |
20160202374 | Performing Tomography to Build Orthorhombic Models | 07-14-2016 |
20160202388 | CUMULATIVE FLUID FLOW THROUGH OILFIELD IRON ENABLED BY RFID | 07-14-2016 |
20160253634 | SYSTEM AND METHOD FOR TRACKING WELLSITE EQUIPMENT MAINTENANCE DATA | 09-01-2016 |
20160377585 | Geochemical Water Analysis Element Concentration Prediction for Oilfield Waters - A first wellhead fluid sample is collected from a petroleum well. Multiple geochemical water analysis (GWA) tests are preformed to form GWA water analysis data. The GWA tests determine physical properties of, and one or more geochemical water element (GWE) concentration values associated with, the first wellhead fluid sample. Correlation data associated with the GWA water analysis data is determined. A second wellhead fluid sample is collected from the petroleum well and only a water conductivity analysis is performed on the second wellhead fluid sample to determine water conductivity data. | 12-29-2016 |
20170235006 | NOISE REMOVAL FOR DISTRIBUTED ACOUSTIC SENSING DATA | 08-17-2017 |
20180023384 | METHOD AND APPARATUS FOR STRESS MAPPING OF PIPELINES AND OTHER TUBULARS | 01-25-2018 |
20190145184 | DYNAMIC WEAR PREDICTION FOR FIXED CUTTER DRILL BITS | 05-16-2019 |
20190145233 | REAL-TIME MONITORING AND CONTROL OF DIVERTER PLACEMENT FOR MULTISTAGE STIMULATION TREATMENTS | 05-16-2019 |
20190146115 | TUBE WAVE ANALYSIS OF WELL COMMUNICATION | 05-16-2019 |
20220137250 | AZIMUTHAL MEASUREMENT FOR GEOSTEERING - A method for geosteering while drilling a well in a subterranean formation using a downhole assembly having a toolface comprises measuring at least one motion-related downhole parameter relative to the toolface angle so as to generate azimuthally-associated data, using the azimuthally-associated data to assess formation anisotropy, and using the anisotropy assessment to manually or automatically steer a well while drilling the well. The motion-related downhole parameter may relate to motion of an asymmetric bit or bent housing or bent housing section. The downhole parameter may be selected from the group consisting of angular velocity, angular acceleration, tangential acceleration, radial acceleration, axial acceleration, cross-axial acceleration, total acceleration, high-frequency torsional oscillation (HFTO) severity, band-pass-filtered root-mean-square (RMS) acceleration, band-pass-filtered peak acceleration and the azimuthally-associated data may comprise azimuthally-associated measurements of any of the motion-related parameters and/or azimuthally-associated calculations of compressive strength, Young's modulus, Poisson's ratio, stress, and fracture measurement. | 05-05-2022 |