| 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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| 11/24/2011 | CA2799555A1 Hydraulic fracturing method |
| 11/24/2011 | CA2799551A1 Methods for providing proppant slugs in fracturing treatments |
| 11/24/2011 | CA2799482A1 Bendable strain relief fluid filter liner, method and apparatus |
| 11/23/2011 | EP2387651A1 Apparatus and method for downhole steam generation and enhanced oil recovery |
| 11/23/2011 | EP2387602A2 Methods of designing treatment fluids based on solid-fluid interactions |
| 11/23/2011 | EP2148974B1 Bottom-surface linking equipment including a flexible link between a floating support and the upper end of an under-surface rigid duct |
| 11/23/2011 | EP2049760B1 Articulated extraction pipe |
| 11/23/2011 | EP1778813B1 Under-neutralized alkylxylene sulfonic acid composition for enhanced oil recovery processes |
| 11/23/2011 | EP1529150B1 Electric power control for sickline operations in wellbores |
| 11/23/2011 | EP1264961B1 Method of producing petroleum |
| 11/23/2011 | CN202048169U Beam-pumping unit and energy-saving matching device for same |
| 11/23/2011 | CN202047807U Key opening sliding sleeve switch device |
| 11/23/2011 | CN202047806U Cylindrical electric heating device for output content from oil well |
| 11/23/2011 | CN202047805U Novel christmas tree sleeve pipe anti-suffocating medicine-adding device |
| 11/23/2011 | CN202047804U Novel electric pump pipe column suitable for thick oil recovery |
| 11/23/2011 | CN202047803U Water mixing device |
| 11/23/2011 | CN202047802U Multistage flow regulator |
| 11/23/2011 | CN202047801U Oil nozzle |
| 11/23/2011 | CN202047800U Spiral strainer sieve tube |
| 11/23/2011 | CN202047799U Foam metal composite sand prevention structure and liquid extraction pipe |
| 11/23/2011 | CN202047798U Safety belt suspension device for balance adjustment of oil pumping unit |
| 11/23/2011 | CN202047797U Wheel cylinder type oil pumping machine |
| 11/23/2011 | CN202047796U Oil pumping machine |
| 11/23/2011 | CN202047790U Steam injection valve |
| 11/23/2011 | CN202047770U Bidirectional locking hanger |
| 11/23/2011 | CN202047761U Direct viewing type polished rod eye |
| 11/23/2011 | CN202047757U Layered sand prevention layered testing and layered oil extraction integrated pipe column |
| 11/23/2011 | CN202047756U Low temperature resistance oil pipeline |
| 11/23/2011 | CN102257242A Modifying expansion forces by adding compression |
| 11/23/2011 | CN102257241A Well liner segments for in situ petroleum upgrading and recovery, and method of in situ upgrading and recovery |
| 11/23/2011 | CN102257240A System and method for delivering material to a subsea well |
| 11/23/2011 | CN102257094A Improvement in enhanced oil recovery by polymer without supplementary equipment or product |
| 11/23/2011 | CN102256913A Ceramic article and process for making the same |
| 11/23/2011 | CN102251766A Novel pipeline type flow deflector oil-water separator rotation starting device |
| 11/23/2011 | CN102251765A Axial type inlet oil-water cyclone separator |
| 11/23/2011 | CN102251764A After-burning type supercritical pressure pre-combustion injector of combustor of gas and liquid two-phase fuel generator |
| 11/23/2011 | CN102251763A Composite profile control and oil displacement extraction method for thickened oil reservoir through water injection and exploitation |
| 11/23/2011 | CN102251762A Sand prevention protector for oil submersible motor |
| 11/23/2011 | CN102251761A Dynamic balance beam pumping unit and using method thereof |
| 11/23/2011 | CN102251760A Loose bed and bedrock layer mixed water-intaking and well-forming process for geothermal well |
| 11/23/2011 | CN102251759A Method for mining and machining water-soluble potassium salt mine |
| 11/23/2011 | CN102251757A Multifunctional well washing vehicle |
| 11/23/2011 | CN102251753A Continuous oil pipe and fracturing pipe column hanging and uncoupling device |
| 11/23/2011 | CN101666333B Breaking device of pneumatic jet pump |
| 11/23/2011 | CN101413387B Tower rack type combined transmission oil pumping machine |
| 11/22/2011 | US8062999 Sealant compositions comprising colloidally stabilized latex and methods of using the same |
| 11/22/2011 | US8062998 Method of treating a formation using deformable proppants |
| 11/22/2011 | US8061431 Method of operating a pressure cycle operated perforating firing head and generating electricity in a subterranean well |
| 11/22/2011 | US8061430 Re-settable and anti-rotational contraction joint with control lines |
| 11/22/2011 | US8061428 Non-orientated tubing hanger with full bore tree head |
| 11/22/2011 | US8061427 Well product recovery process |
| 11/22/2011 | US8061425 System and method for dynamically adjusting the center of gravity of a perforating apparatus |
| 11/22/2011 | US8061424 Method for hydraulic fracturing of subterranean formation |
| 11/22/2011 | US8061423 Expandable wellbore assembly |
| 11/22/2011 | US8061422 Process for enhancing the production of oil from depleted, fractured reservoirs using surfactants and gas pressurization |
| 11/22/2011 | CA2675160C Method of heavy oil production |
| 11/22/2011 | CA2575060C System and method for forming cavities in a well |
| 11/22/2011 | CA2537855C Downhole draw down pump and method |
| 11/22/2011 | CA2519635C A system and process for pumping multiphase fluids |
| 11/22/2011 | CA2471340C Aqueous fracturing fluid |
| 11/21/2011 | CA2740281A1 System, method and apparatus for fracture of wells having a liner |
| 11/21/2011 | CA2721499A1 Cyclonic debris evacuation apparatus and method for a pump |
| 11/17/2011 | WO2011143639A2 Materials and methods for temporarily obstructing portions of drilled wells |
| 11/17/2011 | WO2011143569A2 Prevention or mitigation of steel corrosion caused by combustion gas |
| 11/17/2011 | WO2011143276A2 Undersea leak remediation device and method |
| 11/17/2011 | WO2011143272A1 Aquatic recovery and repair system (aars) |
| 11/17/2011 | WO2011143053A1 Methods for unconventional gas reservoir stimulation with stress unloading for enhancing fracture network connectivity |
| 11/17/2011 | WO2011142912A2 Nano-sized particle-coated proppants for formation fines fixation in proppant packs |
| 11/17/2011 | WO2011141875A2 Method and system for treating a subterranean formation |
| 11/17/2011 | WO2011140652A1 Thermal mobilization of heavy hydrocarbon deposits |
| 11/17/2011 | WO2011140603A1 An underground mining apparatus and a method of mining subterranean material |
| 11/17/2011 | WO2011119448A3 Remotely operated isolation valve |
| 11/17/2011 | WO2011106513A3 Permanent cable for submersible pumps in oil well applications |
| 11/17/2011 | US20110278024 Prevention or mitigation of steel corrosion caused by combustion gas |
| 11/17/2011 | US20110278015 System and method for production of reservoir fluids |
| 11/17/2011 | US20110278014 External Jet Pump for Dual Gradient Drilling |
| 11/17/2011 | US20110278011 Materials and methods for temporarily obstructing portions of drilled wells |
| 11/17/2011 | US20110278010 Method and apparatus for wellbore fluid treatment |
| 11/17/2011 | US20110278009 Method of drilling a wellbore |
| 11/17/2011 | US20110278008 Well treatment fluid compositions and methods of use that include a delayed release percarbonate formulation |
| 11/17/2011 | US20110278003 Proppants for use in hydraulic fracturing of subterranean formations |
| 11/17/2011 | US20110278002 Hydrocarbon recovery process |
| 11/17/2011 | US20110278001 Thermal mobilization of heavy hydrocarbon deposits |
| 11/17/2011 | US20110278000 Geothermal well diversion agent formed from in situ decomposition of carbonyls at high temperature |
| 11/17/2011 | US20110277996 Subterranean flow barriers containing tracers |
| 11/17/2011 | US20110277992 Systems and methods for enhanced recovery of hydrocarbonaceous fluids |
| 11/17/2011 | US20110277991 Methods of identifying stimulants for methane production from hydrocarbon-bearing formations |
| 11/17/2011 | DE102010020978A1 Conveying device for conveying e.g. mineral oil in sea ground, has steam jet pump arranged in collecting jacket such that medium i.e. steam, generated on ship or drilling platform, and collected in jacket is pumped to sea ground over pump |
| 11/17/2011 | DE102010016883A1 Method for collecting and conveying e.g. crude oil from crude oil vessel to water surface, involves positioning container in discharge position or reservoir, and providing hole between intake port and opening for penetration of water |
| 11/17/2011 | CA2812450A1 In-situ electrical stimulation of bioconversion of carbon-bearing formations |
| 11/17/2011 | CA2799362A1 Materials and methods for temporarily obstructing portions of drilled wells |
| 11/17/2011 | CA2799164A1 Methods for unconventional gas reservoir stimulation with stress unloading for enhancing fracture network connectivity |
| 11/17/2011 | CA2799098A1 Method and system for treating a subterranean formation |
| 11/17/2011 | CA2739109A1 Artificial lift system |
| 11/16/2011 | EP2386717A1 Choke Assembly |
| 11/16/2011 | EP2386716A1 Choke assembly |
| 11/16/2011 | EP2092160B1 Method for laying a pipeline having an inner corrosion proof cladding |
| 11/16/2011 | CN202039831U Automatic control device for air output stability during well type underground coal bed gasification |
| 11/16/2011 | CN202039830U Ball injector for acid fracturing well head |
| 11/16/2011 | CN202039829U Stable-current right angle type regulator for water injection well |