| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 073152050 |
Density, porosity, or permeability
| 40 |
| 073152030 |
During drilling
| 23 |
| 073152160 |
With vibration measuring
| 21 |
| 073152120 |
Thermal
| 10 |
| 073152170 |
With detail of a borehole wall engaging means
| 6 |
| 073152110 |
By a core sample analysis | 5 |
| 20080257030 | Petrophysical Fluid Flow Property Determination - A method and apparatus for determining petrophysical parameters within a geologic formation pressurizes a geologic sample through a set of predetermined effective pressures, energizes the sample at each predetermined effective pressure with an electric current and/or sonic energy, and measures a conductivity value (electrical conductivity and/or sonic velocity). Permeability and/or porosity are also measured at each pressure through a traditional method and the functions are compared so that permeability and/or porosity can be subsequently derived from a sonic or electrical measurement of a comparable sample under a effective pressure. An apparatus is also described for acquiring the measurements under tri-axial compression, with a computerized interface in one embodiment. | 10-23-2008 |
| 20100223989 | OBTAINING AND EVALUATING DOWNHOLE SAMPLES WITH A CORING TOOL - Samples of hydrocarbon are obtained with a coring tool. An analysis of some thermal or electrical properties of the core samples may be performed downhole. The core samples may also be preserved in containers sealed and/or refrigerated prior to being brought uphole for analysis. The hydrocarbon trapped in the pore space of the core samples may be extracted from the core samples downhole. The extracted hydrocarbon may be preserved in chambers and/or analyzed downhole. | 09-09-2010 |
| 20100269578 | METHOD TO CHARACTERISE ROCK FORMATIONS AND APPARATUS FOR USE THEREWITH - A portable apparatus ( | 10-28-2010 |
| 20130239672 | APPARATUS FOR EXTRACTING, ANALYZING, AND STORING GAS IN DRILLED CORE ON SHIP - Provided is an apparatus for extracting, analyzing, and storing gas in a drilled core on a ship. The apparatus includes: a needle for core insertion inserted into the drilled core to allow the gas in the drilled core to the outside; and a first 3-way valve into which the gas passing through the needle for core insertion is introduced and which controls the introduced gas so as to be supplied to a gas storing container or gas analyzing apparatuses positioned on a ship | 09-19-2013 |
| 20150027217 | CONFINING PRESSURE MEASUREMENT FOR ZONAL ISOLATION EVALUATION - Apparatus and methods for measuring confining pressure, axial strain and radial strain of zonal isolation materials are described. This information is useful for evaluating these materials and predicting seal performance and potential failures of these materials. | 01-29-2015 |
| 073152080 |
Oil, gas, or water saturation | 4 |
| 20130298661 | Apparatus and Method for Analyzing Drilled Submarine Sediment on Ship - Provided are an apparatus and a method for analyzing drilled submarine sediment on a ship. The apparatus includes: a core temperature measuring unit measuring temperatures of each portion of the drilled core positioned on a ship; a gas content analyzing unit analyzing a kind and a content of gases included in a submarine sediment sample collected from the drilled core in a state in which it is positioned on the ship; and a salinity measuring unit measuring salinity of the submarine sediment sample collected from the drilled core in a state in which it is positioned on the ship. | 11-14-2013 |
| 20160194955 | RECEIVING AND MEASURING EXPELLED GAS FROM A CORE SAMPLE | 07-07-2016 |
| 20100132448 | METHOD OF DETERMINING SATURATIONS IN A RESERVOIR - A method of determining water saturations from a deep-reading resistivity measurement in a reservoir is provided including the step of estimating, through for example a reservoir simulation process, a spatial distribution of a parameter related to the water conductivity at locations beyond the immediate vicinity of wells penetrating the reservoir and combining the spatial distribution of a parameter related to the water conductivity with a spatial distribution of resistivity as obtained from the deep-reading resistivity measurement to derive a spatial distribution of water saturations at said locations beyond the immediate vicinity of wells, wherein estimation step may be iterative to minimize a mismatch between simulation and measurement. | 06-03-2010 |
| 20130091941 | DETERMINATION OF OIL SATURATION IN RESERVOIR ROCK USING PARAMAGNETIC NANOPARTICLES AND MAGNETIC FIELD - Methods for detection of the presence and distribution of oil in subsurface formation are described herein. The present invention involves injection of an aqueous dispersion of the nanoparticles into the potentially oil containing subsurface formation, followed by a remote detection of the oscillation responses of the nanoparticles in the oil/water interfaces in the reservoir rock by applying magnetic field. | 04-18-2013 |
| 073152140 |
With radioactivity measuring | 3 |
| 20110016962 | Detector for Characterizing a Fluid - An apparatus for characterizing a fluid property in a vessel may include a first member and a second member. The first member and the second member may be oriented at a non-zero angle. The second member may be responsive to the motion of the first member, and the first member may be acoustically coupled to the fluid by the vessel. Also, a method for characterizing the fluid includes using the response of the second member to estimate the fluid property. | 01-27-2011 |
| 20120272724 | HIGH RESOLUTION LWD IMAGING - A method for forming a high resolution logging while drilling image includes receiving a logging while drilling data set and selecting a borehole grid. The borehole grid includes a plurality of pixels that define discrete azimuthal positions and depth positions in the borehole. The LWD data set is mapped to the selected borehole grid such that an azimuthal position and a depth position are assigned to each data point in the data set. An interpolation routine is used to fill empty pixels. Disclosed embodiments enable high resolution LWD imaging that may resolve various fine formation features such as fractures, fine bedding layers, breakout, and vugs. | 11-01-2012 |
| 20110132082 | MEASURING PROBE FOR OIL AND GAS WELLS AND/OR CASINGS - This invention relates to well logging instrumentation, specifically, to measuring devices which use an advanced slip-free borehole contact interaction mechanism. A measuring probe for an oil and gas wells and/or casings includes a main body and at least one robotic arm, fixed to the main body and provided with a polygonal rotating contact tip at the arm's free end. The measuring probe is used as a measuring device and provides a successive slip-free continuous contact between the rotating surface of the tip and the inner wall of the oil & gas wells and/or casings. The tip is furnished with at least one sensor that picks up the geological formations response to a signal emitted directly to the geological formation via the points of contact. | 06-09-2011 |
| Entries |
| Document | Title | Date |
|---|
| 20080209997 | System, method, and apparatus for fracture design optimization - A method for optimizing fracture treatments includes interpreting a nominal pump schedule corresponding to a nominal value for each fracture control parameter. The method further includes interpreting environmental variables, and interpreting probability distributions for each of the environmental variables that is uncertain. The method further includes defining an objective function such as a net present value of each fracture treatment over a 365 day period following the fracture treatment. The method includes determining an optimal value for each fracture control parameter according to the objective function by determining the fracture control parameter values that yield the best mean net present value given the variability in the environmental variables as described by their probability distributions. | 09-04-2008 |
| 20090133486 | IN-SITU FORMATION STRENGTH TESTING - Estimating formation properties includes a member coupled to a carrier, the member having a distal end that engages a borehole wall location, the distal end having a curved surface having a radius of curvature in at least one dimension about equal to or greater than a borehole radius. A drive device extends the first extendable member with a force sufficient to determine formation strength, and at least one measurement device providing an output signal indicative of the formation property. Articulating couplings may be used to change an angle of extension of the extendable member. | 05-28-2009 |
| 20100011853 | CONTACT-LESS SENSOR CARTRIDGE - The invention provides a sensor cartridge comprising: (a) a protective housing ( | 01-21-2010 |
| 20100064794 | METHOD AND APPARATUS FOR FORMATION EVALUATION AFTER DRILLING - Methods and apparatus for evaluating a formation include conveying a formation evaluation tool in a borehole on a tubular carrier extending from a surface location at least to the formation evaluation tool. A cable is conveyed to the formation evaluation tool and communication between the formation evaluation tool and the cable is established after the formation evaluation tool is moved to a selected borehole location. | 03-18-2010 |
| 20120036923 | TRACER METHOD TO ESTIMATE RATES OF METHANE GENERATION THROUGH AUGMENTATION OR BIOSTIMULATION OF THE SUB-SURFACE - A method for determining the flux of methane newly generated through manipulation of a sub-surface environment. The method comprises: (a) measuring a baseline isotope ratio (R | 02-16-2012 |
| 20120152010 | Apparatus and Measuring Stress in a Subterranean Formation - A method and apparatus for determining a stress field in a subterranean formation include deploying a stress measurement tool on a tubular string, opening at least three fractures in three different radial directions in the subterranean formation, and closing the at least three fractures. The at least three fractures are reopened while measuring stress and strain conditions. From the reopening, a tangential stress component for each of the at least three fractures is determined. From the tangential stress components and radial directions of the at least three fractures, the stress field of the subterranean formation is determined. | 06-21-2012 |
| 20120180562 | LOGGING TOOL SONDE SLEEVE - A logging tool for use in a wellbore having a sensor portion for making measurements. The tool has a sleeve enclosing the sensor portion and made of a material that is transparent to the measurements being made. One or more structural elements having physical characteristics different from the material comprising the sleeve are carried on the sleeve to enhance the mechanical properties of the sleeve. | 07-19-2012 |
| 20120227480 | APPARATUS, SYSTEM AND METHOD FOR DETERMINING AT LEAST ONE DOWNHOLE PARAMETER OF A WELLSITE - Techniques for determining at least one downhole parameter of a wellsite are provided. A sensor apparatus is operatively connectable to a downhole tool deployable into a borehole of the wellsite, the downhole tool having a conduit system for receiving downhole fluid. The sensor apparatus has a housing, at least one gauge, a gauge carrying body positionable in the housing for receiving the gauge, and a flowline extending through the gauge carrying body for operatively connecting the conduit system to the gauge whereby parameters of the downhole fluid are measured. The gauge has at least one pressure sensor and at least one temperature sensor. The gauge carrying body has a pressure resistant block and a thermal absorber positionable about the gauge. | 09-13-2012 |
| 20120247198 | MODULAR APPARATUS AND METHOD FOR MAKING MEASUREMENTS IN BOREHOLES - Apparatus for making measurements in boreholes comprising a sonde having a radial array of arms provided thereon; wherein the sonde is connectable to a cartridge containing electronic circuitry specific to a predetermined measurement to be made in the borehole, each arm is connectable to a sensor pad specific to the predetermined measurement; and the sonde provides electrical connectivity between the sensor pads and the cartridge that is substantially independent of the predetermined measurement. | 10-04-2012 |
| 20130025358 | Deployment Mechanism for Well Logging Devices - Devices and methods for logging a wellbore condition. A logging-on-demand tool is used which includes a logging tool housing assembly carried by a running string and a logging tool that is retained within the logging tool housing assembly and is selectively movable between a retracted position, wherein the logging tool is retained radially within the logging tool housing assembly, and a deployed position, wherein the logging tool is extended axially from the logging tool housing assembly | 01-31-2013 |
| 20130081458 | Method and Apparatus for Determining the Local Spatial Extent of the Phase of Valuable Mineral in a Rock - A method and an apparatus are provided for determining a local mineral grain size of a valuable mineral in a rock of a deposit or an occurrence, where the rock comprises at least one other mineral, and wherein the valuable mineral has a higher density than the at least one other mineral. The method may include: performing a drilling operation using a drill in the rock, with cuttings being produced, forming an aerosol comprising the cuttings and a gas stream, transferring the aerosol from the drill to at least one air classifier, performing stream classification, wherein at least two fractions comprising in each case particles of the cuttings that sink at the same speed are formed, and determining a property of at least one of the fractions, which fraction is used as a measure for the local mineral grain size of the valuable mineral in the rock. | 04-04-2013 |
| 20140230537 | METHOD AND APPARATUS FOR USE OF ELECTRONIC PRESSURE GAUGE IN EXTREME HIGH TEMPERATURE ENVIRONMENT - Methods and apparatus for use of an electronic pressure gauge at high temperatures is presented. An electronic pressure sensor is exposed to wellbore pressure at a location having high-temperatures. A pressurized fluid, preferably a refrigerant, is flowed into a chamber proximate the pressure sensor and cools it sufficiently to preclude damage from the high wellbore temperatures. Preferably, the pressurized fluid is expanded, from liquid to gaseous phase, in the chamber. In another method, an electronic pressure gauge is positioned uphole, where temperature is not expected to damage the sensor, and a pressure chamber is positioned downhole at a location where pressure is to be sensed. The pressure chamber communicates downhole pressure to the uphole pressure gauge by way of a pressure conduit filled with pressurized fluid, such as an inert gas. The system is isolated from pressure during run-in by a temporary pressure isolation device such as a rupture disk. | 08-21-2014 |
| 20140366620 | High Pressure Rock Core Testing - A method of performing a rock core flow performance test includes increasing a pressure applied to at least one surface of the rock core to a first pressure, measuring the pressure on a wellbore facing axial end of the rock core to determine a time interval over which the measured pressure drops from a second pressure to a third pressure, and determining a high pressure production ratio of the rock core based on the time interval. | 12-18-2014 |
| 20150322768 | ENHANCED BANDWIDTH TRANSDUCER METHOD FOR WELL INTEGRITY MEASUREMENT - A single critically damped acoustic stack yields a wide frequency range as an acoustic transmitter or as an acoustic transducer having particular use in well integrity determination. The critically damped present acoustic stack utilizes a plurality of stacked acoustic elements such as piezoelectric ceramics that are energized in two manners, providing different center frequencies, each producing a respective center frequency of 100% bandwidth to yield an acoustic stack having a total bandwidth exceeding the bandwidth of an acoustic element or the bandwidth of the plurality of acoustic elements. One manner of energizing is to pulse only one of the acoustic elements. The other manner is to pulse a first acoustic element then pulse a second acoustic element after a delay equal to the amount of time it takes for the first pulse to reach the face of the second acoustic element. The acoustic stack is primarily used in pulse-echo analysis of metal casing wall thickness and cement bond quality detection of wells. | 11-12-2015 |
| 20180023389 | Formation Pressure Determination | 01-25-2018 |
