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| Number | Title | Issue Date |
| 8185313 | Classifying potential hydrocarbon reservoirs using electromagnetic survey information A probabilistic method for classifying observed CSEM response for a resistive anomaly to classify the response into multiple geologic categories indicative of hydrocarbon production potential. Each category is assigned a prior probability (301). For each cate... | 05/22/2012 |
| 8184502 | Rock physics model for simulating seismic response in layered fractured rocks Method for modeling anisotropic elastic properties of a subsurface region comprising mixed fractured rocks and other geological bodies. P-wave and fast and slow S-wave logs are obtained, and an anisotropic rock physics model of the subsurface region is developed ( | 05/22/2012 |
| 8183868 | Method to maintain towed dipole source orientation Apparatus and method for a steerable horizontal electric dipole source system for underwater deployment as a moving source in electromagnetic surveying of subsurface regions for hydrocarbons. Position locating sensors (195) are placed near each electrode (... | 05/22/2012 |
| 8180602 | Method for mechanical and capillary seal analysis of a hydrocarbon trap Method for making a probabilistic determination of total seal capacity for a hydrocarbon trap, simultaneously considering both capillary entry pressure and mechanical seal capacity, and where capillary entry pressure is estimated by relating it directly to the buoya... | 05/15/2012 |
| 8169222 | Method for electroseismic survey design A method for designing a controlled-source electromagnetic survey that will discriminate between a defined deep marginal-interest reservoir (2) and specified false positive resistivity structures of concern (3, 4, 5). A reservoir model and a false posi... | 05/01/2012 |
| 8165816 | Fluid injection management method for hydrocarbon recovery A method for controlling fluid injection parameters to improve well interactions and control hydrofracture geometries is provided. The method incorporates a systematic, transient analysis process for determining the formation effective displacement, stress and exces... | 04/24/2012 |
| 8156758 | Method of extracting ethane from liquefied natural gas Methods and systems for recovery of natural gas liquids (NGL) and a pressurized methane-rich sales gas from liquefied natural gas (LNG) are disclosed. In certain embodiments, LNG passes through a heat exchanger, thereby heating and vaporizing at least a portion of t... | 04/17/2012 |
| 8151884 | Combined development of oil shale by in situ heating with a deeper hydrocarbon resource A method for producing hydrocarbons from subsurface formations at different depths is first provided. In one aspect, the method includes the step of heating organic-rich rock, in situ, within a subsurface formation at a first depth. The result of the heating step is... | 04/10/2012 |
| 8151877 | Downhole burner wells for in situ conversion of organic-rich rock formations A method for in situ heating of an organic-rich rock formation is provided. Preferably the organic-rich rock formation comprises kerogen. The method may include the steps of providing a first wellbore extending at least to a depth of the organic-rich rock formation,... | 04/10/2012 |
| 8146664 | Utilization of low BTU gas generated during in situ heating of organic-rich rock A method for utilizing gas produced from an in situ conversion process includes heating an organic-rich rock formation, for example an oil shale formation. The method may include producing a production fluid from the organic-rich rock formation where the production ... | 04/03/2012 |
| 8146654 | Composition and method for using waxy oil-external emulsions to modify reservoir permeability profiles A waxy oil-external emulsion is provided for injection into a selected zone of a subsurface formation. The selected zone is typically a high permeability zone. The emulsion generally comprises oil, added wax, and water. The emulsion may also include an emulsifying a... | 04/03/2012 |
| 8136600 | Vertical annular separation and pumping system with integrated pump shroud and baffle A Vertical Annular Separation and Pumping System (VASPS) utilizing an isolation baffle to replace a standard pump shroud associated with an electrical submersible pump. The isolation baffle may be a one piece plate positioned so as to direct produced wellbore liquid... | 03/20/2012 |
| 8133302 | Process for purification of hydrocarbons The present invention relates to a process for the removal of sulfur contaminants from a hydrocarbon stream comprising: (a) providing a gaseous hydrocarbon stream having sulfur contaminants, but having less than 10 ppmw of said sulfur contaminants as thiophenes, to ... | 03/13/2012 |
| 8127831 | Wellbore method and apparatus for sand and inflow control during well operations Method and apparatus for producing hydrocarbons including a wellbore that accesses a subsurface reservoir; a production tubing string disposed within the wellbore; and sand control devices coupled to the production tubing string. At least one of the sand control dev... | 03/06/2012 |
| 8122955 | Downhole burners for in situ conversion of organic-rich rock formations A method for in situ heating of a selected portion of a targeted organic-rich rock formation such as an oil shale formation is provided. The method includes the steps of providing casing in a wellbore extending to a depth within or below the selected portion of the ... | 02/28/2012 |
| 8121823 | Iterative inversion of data from simultaneous geophysical sources Method for reducing the time needed to perform geophysical inversion by using simultaneous encoded sources in the simulation steps of the inversion process. The geophysical survey data are prepared by encoding (3) a group of source gathers (1), using f... | 02/21/2012 |
| 8117019 | Method for evaluating sedimentary basin properties by numerical modeling of sedimentation processes A method is disclosed for simulating the formation of sedimentary deposits. In one embodiment, this method involves, (a) solving a two-dimensional time-dependent map view system of equations for at least flow momentum, flow height, suspended sediment concentration, ... | 02/14/2012 |
| 8104537 | Method of developing subsurface freeze zone A method of lowering the temperature of a subsurface formation, e.g., comprising oil shale, includes injecting a cooling fluid under pressure into a wellbore. The wellbore is completed at or below a depth of the subsurface formation, and the wellbore includes a bore... | 01/31/2012 |
| 8101086 | Oil/water separation of full well stream by flocculation-demulsification process A process for the separation of production fluids is provided. The production fluids comprise an oil/water emulsion stabilized with fine solids. The emulsion may further comprise asphaltenes and naphthenic acids and resins. The process includes subjecting the emulsi... | 01/24/2012 |
| 8100178 | Method of oil recovery using a foamy oil-external emulsion An improved method of producing hydrocarbons from a subterranean formation in which a solids-stabilized emulsion (SSE) is formed, the SSE comprising oil as a first liquid, droplets of a second liquid suspended in the oil, and solid particles that are insoluble in bo... | 01/24/2012 |
| 8093304 | Demulsification of water-in-oil emulsion A method of demulsifying a water-in-oil emulsion is provided. The method includes treating a volume of fluids comprising oil and water by adding a salt of a polynuclear, aromatic sulfonic acid to the fluids so as to cause the oil and water to be at least partially d... | 01/10/2012 |
| 8088717 | Compressible objects having partial foam interiors combined with a drilling fluid to form a variable density drilling mud A compressible object is described that may be utilized in drilling mud and with a drilling system to manage the density of the drilling mud. The compressible object includes a shell that encloses an interior region. The interior region of the shell is at least part... | 01/03/2012 |
| 8088716 | Compressible objects having a predetermined internal pressure combined with a drilling fluid to form a variable density drilling mud A compressible object is described that may be utilized in drilling mud and with a drilling system to manage the density of the drilling mud. The compressible object includes a shell that encloses an interior region. Also, the compressible object has an internal pre... | 01/03/2012 |
| 8087460 | Granular electrical connections for in situ formation heating A method for heating a subsurface formation using electrical resistance heating is provided. In one aspect, the method includes creating a passage in the subsurface formation between a first wellbore located at least partially within the subsurface formation, and a ... | 01/03/2012 |
| 8082995 | Optimization of untreated oil shale geometry to control subsidence A method for developing hydrocarbons from a subsurface formation. The subsurface formation may include oil shale. The method may include conductively heating portions of an organic-rich rock formation located in a development area, thereby pyrolyzing at least a port... | 12/27/2011 |
| 8079321 | Long tank FSRU/FLSV/LNGC A method and apparatus for storing liquid within a storage tank such that a natural resonance of fluid motion of the stored fluid falls between natural resonance periods of a floating vessel that includes the storage tank. As a result, resonant energy of the floatin... | 12/20/2011 |
| 8078437 | Upscaling reservoir models by reusing flow solutions from geologic models Method is provided for simulating a physical process such as fluid flow in porous media by performing a fine-grid calculation of the process in a medium and re-using the fine grid solution in subsequent coarse-grid calculations. For fluid flow in subsurface formatio... | 12/13/2011 |
| 8076269 | Compressible objects combined with a drilling fluid to form a variable density drilling mud A compressible object is described that may be utilized in drilling mud and with a drilling system to manage the density of the drilling mud. The compressible object includes a shell that encloses an interior region. The shell experiences less strain when the extern... | 12/13/2011 |
| 8029026 | Threaded connections and methods for forming threaded connection Systems related to threaded connections whereby off-center axial alignment of connected components is maintained. In one embodiment, threads on one connection component are timed to match the timing of the threads on the other connection component. The one component... | 10/04/2011 |
| 8011437 | Wellbore method and apparatus for completion, production and injection A method associated with the production of hydrocarbons comprising a joint assembly comprising a main body portion having primary and secondary fluid flow paths, wherein the main body portion is attached to a load sleeve assembly at one end and a torque sleeve assem... | 09/06/2011 |
| 8008920 | 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 ... | 08/30/2011 |
| 7998227 | Method for utilizing gas reserves with low methane concentrations for fueling gas turbines The invention is directed to a method of fueling gas turbines from natural gas reserves with relatively low methane concentrations. The invention permits the use of such reserves to be used to fuel gas turbines to generate electric power. The method of the invention... | 08/16/2011 |
| 7994374 | Recovery of kinetic hydrate inhibitor A method for treating a fluid having hydrate-forming constituents is provided. In one or more embodiments, the method includes including a mixture (110) comprising glycol and one or more kinetic inhibitors to a fluid (105) that includes one or more hyd... | 08/09/2011 |
| 7987074 | Efficient computation method for electromagnetic modeling Method for efficient processing of controlled source electromagnetic data, whereby Maxwell's equations are solved [107] by numerical techniques [109] such as finite difference or finite element in three dimensions for each source location and frequency... | 07/26/2011 |
| 7987054 | Efficient multiple prediction in two and three dimensions A method is disclosed that uses (a) source-receiver reciprocity and (b) a method such as ISR DMO (U.S. Patent Application Publication No. 2006/0098529) that allows reconstruction of densely sampled gathers at arbitrary surface locations, to efficiently predict multi... | 07/26/2011 |
| 7984760 | Wellbore method and apparatus for sand and inflow control during well operations A method, system and apparatus associated with the production of hydrocarbons are described. The system includes a wellbore that accesses a subsurface reservoir; a production tubing string disposed within the wellbore; and one or more sand control devices coupled to... | 07/26/2011 |
| 7983883 | Enriched multi-point flux approximation Methods and systems to reduce or eliminate numerical oscillations in solutions that occur when using conventional MPFA when modeling flow in a reservoir are provided. The technique may be referred to as enriched multi-point flux approximation (EMPFA) and may be used... | 07/19/2011 |
| 7980329 | System for managing variable density drilling mud A method and system for drilling a wellbore is described. The system includes a wellbore with a variable density drilling mud, drilling pipe, a bottom hole assembly disposed in the wellbore and a drilling mud processing unit in fluid communication with the wellbore.... | 07/19/2011 |
| 7972555 | Method for fabricating compressible objects for a variable density drilling mud Methods for fabricating compressible object are described. These compressible objects may be utilized in drilling mud and with a drilling system to manage the density of the drilling mud. The method includes selecting an architecture for a compressible object; selec... | 07/05/2011 |
| 7971642 | Gravel packing methods A method associated with the production of hydrocarbons is described. The method includes drilling a wellbore using a drilling fluid, conditioning the drilling fluid, running a production string in the wellbore and gravel packing an interval of the wellbore with a c... | 07/05/2011 |
