| Patents for E21B 43 - Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells (64,186) |
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| 04/10/2002 | EP1194497A1 Water based wellbore fluids |
| 04/10/2002 | CN2485451Y Plunger assembly for sand scraping oil sucking pump |
| 04/10/2002 | CN2485450Y Valve pump for production by injection |
| 04/10/2002 | CN2485449Y Pump with long plunger for production by injection |
| 04/10/2002 | CN2485423Y Casing column for layered steam distribution process |
| 04/10/2002 | CN2485422Y High energy composite hole shooter with external explosive load |
| 04/10/2002 | CN2485421Y High energy composite hole shooter for oil/gas well |
| 04/10/2002 | CN2485420Y Composite sandproof screen casing |
| 04/10/2002 | CN2485419Y Oil sucker with adjstable weight center for balance |
| 04/10/2002 | CN2485418Y Installation device for sliding pumping unit |
| 04/10/2002 | CN2485413Y Tester for multi-stage cementing downhole packer |
| 04/10/2002 | CN1343830A Electromagnetic petroleum recovering equipment and its application in petroleum recovery |
| 04/10/2002 | CN1082605C Method of chemically induced stimulation of coal cleat formation |
| 04/10/2002 | CN1082604C Method for increasing methane yield from subterranean coal formation |
| 04/10/2002 | CN1082603C Swivel joint device |
| 04/09/2002 | US6368068 Multi-well computerized control of fluid pumping |
| 04/09/2002 | US6367566 Down hole, hydrodynamic well control, blowout prevention |
| 04/09/2002 | US6367555 Method and apparatus for producing an oil, water, and/or gas well |
| 04/09/2002 | US6367554 Riser method and apparatus |
| 04/09/2002 | US6367548 Diversion treatment method |
| 04/09/2002 | US6367547 Downhole separator for use in a subterranean well and method |
| 04/09/2002 | US6367546 Ceramic components for high pressure oil wells |
| 04/09/2002 | CA2227458C Shroud for a well screen |
| 04/04/2002 | WO2002027141A1 Apparatus for the wellbore separation of hydrocarbon gas and contaminants with membranes for removal of hydrocarbon liquids |
| 04/04/2002 | WO2002027139A1 Method and system for wireless communications for downhole applications |
| 04/04/2002 | WO2002027138A2 Well screen with spirally wrapped wire |
| 04/04/2002 | WO2002026345A1 Method and apparatus for separating liquid from a multi-phase liquid/gas stream |
| 04/04/2002 | WO2002008562A3 Combined liner and matrix system, use of the system and method for control and monitoring of processes in a well |
| 04/04/2002 | WO2001098623B1 Radial expansion of tubular members |
| 04/04/2002 | WO2001092673A3 Fluid displacement apparatus and method |
| 04/04/2002 | WO2001086115A3 A method for treating a hydrocarbon containing formation |
| 04/04/2002 | WO2001053649A3 Slugging control |
| 04/04/2002 | US20020040177 In situ thermal processing of a hydrocarbon containig formation, in situ production of synthesis gas, and carbon dioxide sequestration |
| 04/04/2002 | US20020040173 Providing heat from one or more heat sources to at least one portion of formation; allowing heat to transfer from the one or more heat sources to a selected section of the formation; controlling the heat; producing a mixture from the formation |
| 04/04/2002 | US20020039899 Method and architecture for an interactive two-way data communication network |
| 04/04/2002 | US20020039486 In situ thermal processing of a coal formation using heat sources positioned within open wellbores |
| 04/04/2002 | US20020038712 In situ production of synthesis gas from a coal formation through a heat source wellbore |
| 04/04/2002 | US20020038711 Pyrolysis |
| 04/04/2002 | US20020038710 In situ thermal processing of a hydrocarbon containing formation having a selected total organic carbon content |
| 04/04/2002 | US20020038709 In situ thermal processing of a hydrocarbon containing formation using a natural distributed combustor |
| 04/04/2002 | US20020038708 In situ thermal processing of a coal formation to produce a condensate |
| 04/04/2002 | US20020038707 Well screen |
| 04/04/2002 | US20020038706 In situ thermal processing of a coal formation with a selected vitrinite reflectance |
| 04/04/2002 | US20020038705 In situ thermal processing of a hydrocarbon containing formation to produce a mixture with a selected hydrogen content |
| 04/04/2002 | DE10044535A1 Underground, permeable filter formed in-situ to prevent solids migration to consolidate boreholes, comprises quartz introduction wetted by resin-hardener-bonding agent system |
| 04/03/2002 | EP1193002A2 Permanent storage facility, particularly for the disposal of municipal solid waste |
| 04/03/2002 | EP1193001A2 Device for collecting gases, particularly for controlling facilities for the permanent storage of municipal solid waste |
| 04/03/2002 | EP1192331A1 Method of deploying an electrically driven fluid transducer system in a well |
| 04/03/2002 | EP1192317A1 Method and device for the collection of underwater spills and for covering the sea bed |
| 04/03/2002 | EP0993540B1 Device and method for creating ramifications in a bore hole |
| 04/03/2002 | CN2484405Y Sand anchor for filtering net of tubelike stainless steel-plate |
| 04/03/2002 | CN2484404Y External-pressure soft-cloth thermal-stress compensator |
| 04/03/2002 | CN1343133A Three-phase separator |
| 04/03/2002 | CN1342829A Edge water scheduling technique for oil field using edge water to displace oil |
| 04/02/2002 | US6364945 Using a hydraulic cement, acid soluble and liquid hydrocarbon solvent soluble particulate solids, a crosslinked gel and internal breaker which causes gel to break down into liquid after time, water to form slurry, gases, foaming agents |
| 04/02/2002 | US6364940 Compact, high-efficiency, gas/liquid separator method and apparatus |
| 04/02/2002 | US6364633 Internally ported hydraulically actuated down-hole pump |
| 04/02/2002 | US6364024 Blowout preventer protector and method of using same |
| 04/02/2002 | US6364021 Well management system and method of operation |
| 04/02/2002 | US6364018 Lightweight methods and compositions for well treating |
| 04/02/2002 | US6364017 Single trip perforate and gravel pack system |
| 04/02/2002 | US6364015 Method of determining fracture closure pressures in hydraulicfracturing of subterranean formations |
| 04/02/2002 | US6364013 Shroud for use with electric submergible pumping system |
| 04/02/2002 | CA2221770C Apparatus for passive removal of subsurface contaminants |
| 03/28/2002 | WO2002025060A1 Shunting of a well stream |
| 03/28/2002 | WO2002025059A1 Method and apparatus for completing wells with expanding packers for casing annulus and formation isolation |
| 03/28/2002 | WO2002025058A1 Method for gravel packing open holes above fracturing pressure |
| 03/28/2002 | WO2002025057A1 Apparatus comprising bistable structures for use in oil and gas wells |
| 03/28/2002 | WO2002025056A1 Method and apparatus for cementing wells |
| 03/28/2002 | WO2002025050A2 Downhole machining of well completion equipment |
| 03/28/2002 | WO2001081716A3 A method for sequestering a fluid within a hydrocarbon containing formation |
| 03/28/2002 | WO2001081502A3 Mineral acid enhanced thermal treatment for viscosity reduction of oils (ecb-0002) |
| 03/28/2002 | WO2001073254A3 Coupling means for controls bridge through a tubing head |
| 03/28/2002 | WO2001065718A3 Wireless power and communications cross-bar switch |
| 03/28/2002 | US20020038069 In situ thermal processing of a coal formation to produce a mixture of olefins, oxygenated hydrocarbons, and aromatic hydrocarbons |
| 03/28/2002 | US20020036103 In situ thermal processing of a coal formation by controlling a pressure of the formation |
| 03/28/2002 | US20020036089 In situ thermal processing of a hydrocarbon containing formation using distributed combustor heat sources |
| 03/28/2002 | US20020036087 Method and apparatus for gravel packing with a tool that maintains a pressure in a target wellbore section |
| 03/28/2002 | US20020036086 Process for purification by combination of an effluent that contains carbon dioxide and hydrocarbons |
| 03/28/2002 | US20020036085 Toroidal choke inductor for wireless communication and control |
| 03/28/2002 | US20020036084 In situ thermal processing of a hydrocarbon containing formation to form a substantially uniform, high permeability formation |
| 03/28/2002 | US20020036083 In situ thermal processing of a hydrocarbon containing formation with heat sources located at an edge of a formation layer |
| 03/28/2002 | US20020035951 Methods and compositions for forming permeable cement sand screens in well bores |
| 03/28/2002 | US20020035919 Pad plunger assembly with interfitting keys and key ways on mandrel and pads |
| 03/28/2002 | DE10045928A1 Assembly to mix a fluid with solid materials, directs the solid matter to one side for the fluid stream to strike it at a collision angle for the fluid droplets to penetrate through the solids to give a homogenous mixture |
| 03/28/2002 | CA2423000A1 Downhole machining of well completion equipment |
| 03/28/2002 | CA2422800A1 Apparatus comprising bistable structures for use in oil and gas wells |
| 03/27/2002 | EP1191185A1 Downhole centrifugal separator and method of using same |
| 03/27/2002 | EP1190159A1 Deliberate fluid removal by capillary imbibition |
| 03/27/2002 | EP1190158A1 Hydraulic setting tool |
| 03/27/2002 | EP1129272A4 Method and apparatus for remote control of a tubing exit sleeve |
| 03/27/2002 | EP1097287A4 Floating spar for supporting production risers |
| 03/27/2002 | CN2483529Y Piston ring and rod type oil pump |
| 03/27/2002 | CN2483528Y Piston ring and pipe type oil pump |
| 03/27/2002 | CN2483506Y Autoamtic pressure-regulating and water injection machine used in oil-field |
| 03/27/2002 | CN2483505Y Metal perforating frame used in oil-field |
| 03/27/2002 | CN2483504Y Apparatus for obtg. liquid or gas from well in oil-field |
| 03/27/2002 | CN1081720C Dual redundant detonating system for oil well perfortors |
| 03/27/2002 | CN1081719C Method for consolidation of sand |
| 03/27/2002 | CN1081718C Underwater installation and method for building same |