| 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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| 01/06/2011 | WO2011001198A1 Arrangement used in oil field wells for lifting hydrocarbons |
| 01/06/2011 | WO2011000761A1 Method for delivering fluids using centrifugal pumps |
| 01/06/2011 | WO2011000089A1 Methods of fracturing hydrocarbon reservoirs |
| 01/06/2011 | WO2011000022A1 A method of extracting methane from a coal deposit |
| 01/06/2011 | WO2010101752A4 Subterranean screen with varying resistance to flow |
| 01/06/2011 | WO2009098512A3 Apparatus and method for controlling the flow of downhole fluids |
| 01/06/2011 | US20110000678 Efficient Method For Inversion of Geophysical Data |
| 01/06/2011 | US20110000673 Drilling Fluid and Method for Reducing Lost Circulation |
| 01/06/2011 | US20110000672 Clay Stabilization with Nanoparticles |
| 01/06/2011 | US20110000671 Low Emission Power Generation and Hydrocarbon Recovery Systems and Methods |
| 01/06/2011 | US20110000669 Perforating Gun Assembly and Method for Controlling Wellbore Pressure Regimes During Perforating |
| 01/06/2011 | US20110000667 Method of stimulating oil and gas wells using deformable proppants |
| 01/06/2011 | US20110000666 Vitiated Steam Generator |
| 01/06/2011 | CA2844053A1 Improved methods and systems for integrated material processing |
| 01/06/2011 | CA2767109A1 Flow control device with one or more retrievable elements |
| 01/06/2011 | CA2766566A1 Method for extracting hydrocarbons by in-situ electromagnetic heating of an underground formation |
| 01/06/2011 | CA2764750A1 Improved methods and systems for integrated material processing |
| 01/06/2011 | CA2674010A1 Pneumatic motorized multi-pump system |
| 01/05/2011 | EP2270311A2 Apparatus and methods for controlling and communicating with downhole devices |
| 01/05/2011 | EP2268897A2 Low emission power generation and hydrocarbon recovery systems and methods |
| 01/05/2011 | EP2268896A1 Method of bypassing a pipeline in a multiple pipeline system |
| 01/05/2011 | EP2268895A1 Fluid treatment system |
| 01/05/2011 | EP2268894A2 Flow restrictor |
| 01/05/2011 | EP2268893A2 Selectively angled perforating |
| 01/05/2011 | EP2268374A1 Method of producing gaseous and liquid components from one or more multi-phase streams and an apparatus therefor |
| 01/05/2011 | EP2087200B1 Valve for equalizer sand screens |
| 01/05/2011 | EP1991757B1 System for injecting a substance into the space surrounding a well tubular |
| 01/05/2011 | EP1735523B1 Tagged propping agents and related methods |
| 01/05/2011 | CN201696245U Hydraulic automatic augmented injection pump |
| 01/05/2011 | CN201696037U Directional ball seat |
| 01/05/2011 | CN201696020U High-efficiency exhaust anchor |
| 01/05/2011 | CN201696019U High-efficiency oil sludge-water separator |
| 01/05/2011 | CN201696018U Maritime shipborne movable steaming connection meal hose |
| 01/05/2011 | CN201696017U Well field self-operated automatic water doping device of remote monitoring oil well |
| 01/05/2011 | CN201696016U Quantitative and adjustable sleeve throttling valve for extracting oil and gas |
| 01/05/2011 | CN201696015U High-efficiency self-cleaning flow adjusting mechanism |
| 01/05/2011 | CN201696014U Efficient self-cleaning flow regulation device |
| 01/05/2011 | CN201696013U Combined stab-resistant throttling device |
| 01/05/2011 | CN201696012U Union external-location directional perforater |
| 01/05/2011 | CN201696011U Dynamic negative pressure axial starting device |
| 01/05/2011 | CN201696010U Expansion sieve tube |
| 01/05/2011 | CN201696009U 气砂锚 Gas sand anchor |
| 01/05/2011 | CN201696008U Screw oil pumping device for thermal production well and rotary screw pump mounting base thereof |
| 01/05/2011 | CN201696007U Oil field well station monitoring device |
| 01/05/2011 | CN201696006U Directly driven beam pumping unit |
| 01/05/2011 | CN201696005U Sand setting device for plug of sieve tube of oil-well pump |
| 01/05/2011 | CN201696004U Non-beam type oil pumping machine of torque motor |
| 01/05/2011 | CN201696003U Torque motor beam machine |
| 01/05/2011 | CN201696002U Lubricating system of long-ring rack-type pumping unit |
| 01/05/2011 | CN201696001U Pumping unit employing anti-drop emergency brake and unload hanging linkage protection |
| 01/05/2011 | CN201695998U Heat tracing device of solar energy liquid indicator of oil-field margin well block |
| 01/05/2011 | CN201695967U Square clip of polish rod series of pumping well |
| 01/05/2011 | CN201695961U Oil pumping unit polished rod deviation adjusting device |
| 01/05/2011 | CN201692704U Stirring tank for separating crude oil containing mud and sand |
| 01/05/2011 | CN101939506A Method for self-adjusting (autonomously adjusting) the flow of a fluid through a valve or flow control device in injectors in oil production |
| 01/05/2011 | CN101939505A Gas-liquid separator |
| 01/05/2011 | CN101939504A Optimization of untreated oil shale geometry to control subsidence |
| 01/05/2011 | CN101936155A Distributed structure of horizontal section of multi-branch horizontal coal bed methane well |
| 01/05/2011 | CN101936154A Method for guiding drilling and bridging of horizontal coal bed methane well |
| 01/05/2011 | CN101936153A Method for exploiting coal bed gas by water power spray drilling for releasing pressure |
| 01/05/2011 | CN101936152A Seaborne thick oil thermal extracting and lifting technology and device |
| 01/05/2011 | CN101936151A Method for profile control and oil displacement by immobilizing microorganisms |
| 01/05/2011 | CN101936150A Application of dimethyl ether and process and device employing dimethyl ether to assist production of heavy oil |
| 01/05/2011 | CN101936149A Automatic circulation switchers, separate zone water injection system and automatic circulation water injection method |
| 01/05/2011 | CN101936148A Adjustable water nozzle for oilfield water injection and water distributor with same |
| 01/05/2011 | CN101936147A Multifunctional double-acting hydraulic oil producing device |
| 01/05/2011 | CN101936142A Aerated underbalanced drilling method for coal-bed gas |
| 01/05/2011 | CN101936137A Discharging and mining pipe for coalbed methane |
| 01/04/2011 | US7863223 have yield power law characteristics such that they are not prone to movement once emplaced in annulus; minimization of movements in fluids reduces convective heat loss to a minimum; includes hydrocarbon fluid, gelling agent, rheological additive; gelling agent comprises phosphoric, phosphonic acid ester |
| 01/04/2011 | US7861790 Injection valve and method |
| 01/04/2011 | US7861787 Wellbore fluid treatment tubular and method |
| 01/04/2011 | US7861786 Method and apparatus for fluid bypass of a well tool |
| 01/04/2011 | US7861784 System and method of controlling surge during wellbore completion |
| 01/04/2011 | US7861780 Method of treating subterranean formations with porous particulate materials |
| 01/04/2011 | US7861779 Method and device for establishing an underground well |
| 01/04/2011 | US7861777 Viscometer for downhole pumping |
| 01/04/2011 | US7861774 Method and apparatus for wellbore fluid treatment |
| 01/04/2011 | US7861770 System for cyclic injection and production from a well |
| 01/04/2011 | CA2671204C Non-toxic, green fracturing fluid compositions, methods of preparation and methods of use |
| 01/04/2011 | CA2634861C Combined three-in-one fracturing system |
| 01/04/2011 | CA2623469C Gelled emulsions and methods of using same |
| 01/04/2011 | CA2619861C Variable speed wellhead top drive |
| 01/04/2011 | CA2607683C Inverted electrical submersible pump completion to maintain fluid segregation and ensure motor cooling in dual-stream well |
| 01/04/2011 | CA2561322C A drill string incorporating an acoustic telemetry system employing one or more low frequency acoustic attenuators and an associated method of transmitting data |
| 01/04/2011 | CA2557413C Optimized hydrocarbon blends and methods of using optimized hydrocarbon blends |
| 01/04/2011 | CA2528130C Method and apparatus for stimulating hydrocarbon wells |
| 01/04/2011 | CA2479210C Use of dispersion polymers as friction reducers in aqueous fracturing fluids |
| 01/04/2011 | CA2467377C Collapsible expansion cone |
| 01/04/2011 | CA2441814C Tubing seal |
| 12/30/2010 | US20100326670 Lift wash-through facility |
| 12/30/2010 | US20100326669 Method for generating anisotropic resistivity volumes from seismic and log data using a rock physics model |
| 12/30/2010 | US20100326668 Position monitoring facility |
| 12/30/2010 | US20100326667 Production of hydrocarbons |
| 12/30/2010 | US20100326664 Running Tool That Prevents Seal Test |
| 12/30/2010 | US20100326663 Split stream oilfield pumping system utilitzing recycled, high reid vapor pressure fluid |
| 12/30/2010 | US20100326662 Viscous Oil Recovery Using Emulsions |
| 12/30/2010 | US20100326661 Well jet device and the operation method thereof |
| 12/30/2010 | US20100326659 Wellbore laser operations |
| 12/30/2010 | US20100326657 Treatment of particles for improved performance as proppants |
| 12/30/2010 | US20100326656 Pattern steamflooding with horizontal wells |