| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 166250020 | Permeability determining | 26 |
| 20080210420 | METHOD FOR IMPROVING THE DETERMINATION OF EARTH FORMATION PROPERTIES - Methods and apparatus for improving the determination of at least one multiphase flow parameter of an earth formation comprising propagating within the formation a first salinity front, determining a first value of the at least one multiphase flow parameter, propagating in the formation a second salinity front and improving the determination of the at least one multiphase flow parameter from the first value for the at least one multiphase flow parameter and a saturation profile associated with the first and second salinity fronts within the formation. | 09-04-2008 |
| 20080308271 | Deployment of Underground Sensors in Casing - The present invention discloses a monitoring system integrated on a casing or tubing sub ( | 12-18-2008 |
| 20090145600 | Method for determining reservoir permeability form borehole stoneley-wave attenuation using biot's poroelastic theory - Method for determining reservoir permeability from Stoneley wave attenuation extracted from conventional sonic logs by inversion of the full Biot wave equations for a porous medium. Frequency-dependent Stoneley-wave attenuation is extracted by analyzing array sonic measurements. Then, based on Biot's full theory applied to a borehole model and the standard logs (gamma ray, caliper, density, neutron, resistivity, sonic, etc.), a simulation model with the same parameters as the Stoneley-wave measurements is built. Next, a theoretical Stoneley-wave attenuation is computed for a given permeability. Finally, reservoir permeability is determined by comparing the modeled Stoneley-wave attenuation with the measured Stoneley-wave attenuation by an iterative inversion process. | 06-11-2009 |
| 20090166033 | Closed loop control system for controlling production of hydrocarbon fluid from an underground formation - A method is disclosed for controlling production of oil and/or gas from an underground reservoir by means of a closed loop production control system, in which: —an assembly of monitoring sensors ( | 07-02-2009 |
| 20090211752 | METHOD AND APPARATUS FOR SAMPLING FORMATION FLUIDS - A method of retrieving a formation fluid from a formation adjacent a borehole wall includes estimating at least one of a permeability of the formation and a viscosity of the formation fluid. A first tool is selected based on the estimation, the first tool being selected from one of a heating and sampling tool, an injection and sampling tool, and a coring tool. An attempt to retrieve a formation fluid sample from the formation is then made with the first tool, and a formation fluid sample is retrieved from the formation. A second retrieval process may then be initiated, in which the second retrieval process includes increasing the mobility of the formation fluid. | 08-27-2009 |
| 20090250208 | Tool And Method For Evaluating Fluid Dynamic Properties Of A Cement Annulus Surrounding A Casing - The permeability of the cement annulus surrounding a casing is measured by locating a tool inside the casing, placing a probe of the tool in contact with the cement annulus, measuring the change of pressure in the probe over time, where the change in pressure over time is a function of among other things, the initial probe pressure, the formation pressure, and the permeability, and using the measured change over time to determine an estimated permeability. The estimated permeability is useful in determining whether carbon dioxide can be effectively sequestered in the formation below or at the depth of measurement without significant leakage through the cement annulus. | 10-08-2009 |
| 20090272528 | METHOD OF MISCIBLE INJECTION TESTING OF OIL WELLS AND SYSTEM THEREOF - A method of determining reservoir permeability and geometry of a subterranean formation having a reservoir fluid including oil that has not been previously water-flooded includes isolating the subterranean formation to be tested; providing an injection fluid at a substantially constant rate from a wellhead to the formation being tested, wherein the injection fluid is miscible with the oil at the tested formation; sealing, at the top, the tested formation from further fluid injection; measuring pressure data in the tested formation including pressure injection data and pressure falloff data; and determining the reservoir permeability and geometry of the tested formation based on an analysis of the measured pressure injection data and the measured pressure falloff data using a well pressure model. | 11-05-2009 |
| 20090283261 | CONTINUOUS FIBERS FOR USE IN WELL COMPLETION, INTERVENTION, AND OTHER SUBTERRANEAN APPLICATIONS - Methods and related systems are described for use with continuous fiber based system for use with well bore completions comprising: a plurality of continuous fibers deployable into a portion of a well bore completion; a fiber management module adapted and positioned within the borehole to facilitate deployment of and communication with the plurality of continuous fibers; wherein the number of deployable continuous fibers provides sufficient redundancy to make at least a target measurement relating to the completion. | 11-19-2009 |
| 20100078165 | DETERMINING FORMATION WETTABILITY FROM DIELECTRIC MEASUREMENTS - Formation wettability is quantifiably estimated from measurements of dielectric constant and conductivity. In particular, wettability state of formation rock in a subterranean environment is estimated from multi-frequency measurements of rock dielectric constant and conductivity. A dielectric dispersion model is used to invert the measurements and estimate the saturation exponent. The resulting saturation exponent is used to quantify wettability, e.g., by calculating a wettability index. | 04-01-2010 |
| 20100224361 | Compositions and Methods for Treating a Water Blocked Well - The present invention includes a method of treating a hydrocarbon-bearing clastic formation having non-connate water, the method includes contacting the hydrocarbon-bearing clastic formation with a composition that includes a solvent and a surfactant wherein the solvent at least partially displaces or solubilizes the water in the formation. | 09-09-2010 |
| 20100236776 | Downhole X-Ray Source Fluid Identification System and Method - A method and system for determining a property of a sample of fluid in a borehole. A fluid sample is collected in a downhole tool. While collecting, X-rays are transmitted proximate the fluid from an X-ray source in the tool and an X-ray flux that is a function of a property of the fluid is detected. The detected X-ray flux data is processed to determine the property of the fluid. | 09-23-2010 |
| 20110290479 | SYSTEM AND METHOD FOR ENHANCING OIL RECOVERY FROM A SUBTERRANEAN RESERVOIR - A system and method for optimizing sweep efficiency of an enhanced oil recovery process in a subterranean reservoir is disclosed. The system and method include computing a displacement coefficient representative of heterogeneity of an unswept region in the subterranean. A functional relationship between operating conditions of one or more well control devices and the displacement coefficient is determined The sweep efficiency of the enhanced oil recovery process can be optimized by adjusting the well control devices such that the displacement coefficient is minimized. Streamline simulation can be utilized to compute the displacement coefficient from the flow capacity and storage capacity of the unswept region in the subterranean reservoir. | 12-01-2011 |
| 20130056199 | LEWIS ACID AS GELATION RETARDER FOR CROSSLINKABLE POLYMER COMPOSITIONS - A treatment fluid for a well including: (a) a water-soluble polymer, wherein the water-soluble polymer comprises a polymer of at least one non-acidic ethylenically unsaturated polar monomer; (b) an organic crosslinker comprising amine groups, wherein the organic crosslinker is capable of crosslinking the water-soluble polymer; (c) a Lewis acid; and (d) water; wherein the treatment fluid is a crosslinkable polymer composition. According to an embodiment, a method for blocking the permeability of a portion of a subterranean formation penetrated by a wellbore is provided, the method including the steps of: (a) selecting the portion of the subterranean formation to be treated; (b) selecting estimated treatment conditions, wherein the estimated treatment conditions comprise temperature over a treatment time; (c) forming the treatment fluid; and (d) injecting the treatment fluid through the wellbore into the portion of the subterranean formation. | 03-07-2013 |
| 20130292111 | METHOD OF CONSTRUCTING A WELL LOG OF A QUANTITATIVE PROPERTY FROM SAMPLE MEASUREMENTS AND LOG DATA - A method of constructing a well log of a quantitative property representative of a porous formation, from sample measurements and log data, is disclosed. A quantitative property (mineralogical proportions) of samples selected from among a set of samples is measured and each sample is grouped into homogeneous classes regarding the log data. The average value of the quantitative property is then determined in each class. A well log representing the probability of assigning a sample to each class as a function of depth is constructed. Finally, the well log representing the quantitative property as a function of depth is constructed from the log representing the assignment probability and from the average values. | 11-07-2013 |
| 20140014331 | METHOD AND TOOL FOR EVALUATING A GEOLOGICAL FORMATION - A method of evaluating a geological formation ( | 01-16-2014 |
| 20140166274 | SYSTEM AND METHOD FOR PRODUCTION RESERVOIR AND WELL MANAGEMENT USING CONTINUOUS CHEMICAL MEASUREMENT - A system performs methods for well and reservoir management for optimized production of fluids in a reservoir. The system includes a knowledge engine configured to receive a plurality of field inputs, process and analyze the field inputs, and provide a plurality of outputs for presentation to an operator. The system also includes a user data interface configured to display the plurality of data outputs. The plurality of field inputs comprises chemical sensing data and at least one of: temperature, pressure, flow rate and concentration of production components from one or more individual wells located within the reservoir, seismic surveys of the reservoir, permeability, geochemistry and lithology of rock formations, and geographic information system (GIS) data associated with the reservoir. | 06-19-2014 |
| 20140182844 | SYSTEM AND METHOD FOR PERFORMING WELLBORE STIMULATION OPERATIONS - A method of performing a stimulation operation for a subterranean formation penetrated by a wellbore is provided. The method involves collecting pressure measurements of an isolated interval of the wellbore during injection of an injection fluid therein, generating a fracture closure from the pressure measurements, generating transmissibility based on the fracture closure and a mini fall off test of the isolated interval during the injection, obtaining fracture geometry from images of the subterranean formation about the isolated interval, and generating system permeability from the transmissibility and the fracture geometry. The method may also involve deploying a wireline stimulation tool into the wellbore, isolating an interval of the wellbore and injecting fluid into the interval with the wireline stimulation tool. The fracture geometry may be obtained by imaging the formation, and fracture geometry may be obtained from core sampling. | 07-03-2014 |
| 20140338895 | METHOD FOR RECOVERY OF HYDROCARBON FLUID - A method is described for recovery of a hydrocarbon fluid from a porous medium by injection of a fluid into the porous medium. The method includes determining a Rayleigh time on the basis of the density of the fluid and the hydrocarbon fluid, the median pore diameter of the porous medium, and surface tension between the fluid and the hydrocarbon fluid. Further, pressure stimulation is provided in the fluid and generated by a collision process with a collision contact rise time which is of the range of 1-100 times the Rayleigh time. Alternatively or additionally, the providing a pressure stimulation in the fluid include generating an impact pressure with a pressure amplitude I and a pressure rise time Δt, where the pressure amplitude is larger than the relation γcΔt/a | 11-20-2014 |
| 20150034307 | DYNAMIC IN-SITU MEASUREMENT OF RESERVOIR WETTABILITY - Methods and systems for in-situ characterization of a reservoir rock are provided. One method includes: (a) sealing an interval corresponding to a selected depth or depths within the subterranean formation; (b) injecting a displacement fluid into the interval, wherein the displacement fluid displaces a reservoir fluid stored in the reservoir rock; (c) monitoring movement of the displacement fluid or the reservoir fluid in the reservoir rock; and (d) assessing wettability of the reservoir rock based on (c) or determining recovery rate of the reservoir fluid. | 02-05-2015 |
| 20150060058 | METHOD FOR PERFORMING A STIMULATION OPERATION WITH PROPPANT PLACEMENT AT A WELLSITE - A method of performing a stimulation operation at a wellsite is provided. The wellsite has a wellbore penetrating a formation having fractures therein. The method involves predicting placement of proppant parameters in the fractures based on wellsite data, generating an asperity model based on the predicted placement, predicting aperture change for a prescribed closure stress using the asperity model, and determining fracture conductivity based on the predicted aperture change. The method also involves placing into the fractures with a stimulation fluid by injecting the stimulation fluid having the proppant therein into the formation based on the determined fracture conductivity and producing fluid from the reservoirs and into the wellbore through the propped fractures. | 03-05-2015 |
| 20150122491 | Systems and Methods for In Situ Resistive Heating of Organic Matter in a Subterranean Formation - A method for pyrolyzing organic matter in a subterranean formation includes powering a first generation in situ resistive heating element within an aggregate electrically conductive zone at least partially in a first region of the subterranean formation by transmitting an electrical current between a first electrode pair in electrical contact with the first generation in situ resistive heating element to pyrolyze a second region of the subterranean formation, adjacent the first region, to expand the aggregate electrically conductive zone into the second region, wherein the expanding creates a second generation in situ resistive heating element within the second region and powering the second generation in situ resistive heating element by transmitting an electrical current between a second electrode pair in electrical contact with the second generation in situ resistive heating element to generate heat with the second generation in situ resistive heating element within the second region. | 05-07-2015 |
| 20150122492 | Systems and Methods of Controlling In Situ Resistive Heating Elements - Systems and methods for controlling in situ resistive heating elements may be utilized to enhance hydrocarbon production within a subterranean formation. An in situ resistive heating element may be controlled by heating a controlled region associated with the in situ resistive heating element, injecting a control gas into the controlled region, and adjusting the electrical conductivity of the controlled region with the control gas. The controlled region may be located such that the heating and injecting may change the shape of the in situ resistive heating element and/or guide the in situ resistive heating element towards subterranean regions of potentially higher productivity and/or of higher organic matter. | 05-07-2015 |
| 20160024372 | SUBTERRANEAN PRODUCING ZONE TREATMENT - A preconditioning fluid is provided for producing crude oil from a subterranean formation. The preconditioning fluid produces an interface with crude oil in the formation that is more elastic than the interface between formation brine and the crude oil and has a favorable Amott-Harvey wettability index for oil recovery under the dominant hydrocarbon recovery mechanisms. The more elastic interface and improved Amott-Harvey wettability index is consistent with higher recoveries of crude oil from the formation. | 01-28-2016 |
| 20160108727 | Rock Formation Testing Method and Formation Testing Instrument - A method of formation testing and a formation testing instrument, comprising a first pump, a dual packer module, a reverse injection module and a second pump, the dual packer module being provided with a support arm at one side thereof capable of setting after deployed; and the dual packer module being provided with first and second probes at the other side, wherein the first probe is located above the second probe and the first and second probes can establish a channel with the formation; the second pump injecting the acidizing liquid in the reverse injection module into the fluid region in the formation by the second probe; and the first pump sucking the fluid in the formation by the first probe. | 04-21-2016 |
| 20160186542 | THERMAL HYDROCARBON RECOVERY METHOD USING SHOCK CYCLING FLUID STIMULATION - A thermal hydrocarbon recovery method comprising cycling high pressure fluid injection for a period of time followed by low pressure fluid injection for a period of time, the high pressure injection primarily to dilate and enhance reservoir porosity/permeability and improve the subsequent low pressure fluid injectivity. The method is particularly useful for recovering heavy and extra heavy hydrocarbons from tight formations and/or low vertical permeability reservoirs under viscosity reduction and gravity drainage methods. This method is believed to be applicable for recovering heavy or extra heavy oil from reservoirs with geological risk associated with cap rock integrity. | 06-30-2016 |
| 20170234126 | METHODS OF DETERMINING PROPERTIES OF SUBSURFACE FORMATIONS USING LOW SALINITY WATER INJECTION | 08-17-2017 |
