| 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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| 08/04/2009 | CA2419458C Electric submersible pump with specialized geometry for pumping viscous crude oil |
| 08/04/2009 | CA2401730C Controllable production well packer |
| 08/04/2009 | CA2292171C Wellbore casing |
| 07/30/2009 | WO2009094514A2 A junction having improved formation collapse resistance and method |
| 07/30/2009 | WO2009094314A2 Methods of recovering hydrocarbons from oil shale and sub-surface oil shale recovery arrangements for recovering hydrocarbons from oil shale |
| 07/30/2009 | WO2009094308A2 Pressure balanced piston for subsurface safety valves |
| 07/30/2009 | WO2009094307A2 Large inside diameter completion with position indication |
| 07/30/2009 | WO2009094285A1 Oil recovery employing alkylene carbonates |
| 07/30/2009 | WO2009094088A1 Methods of treating a subterranean formation to convert organic matter into producible hydrocarbons |
| 07/30/2009 | WO2009094066A2 Method and system for fracturing subsurface formations during the drilling thereof |
| 07/30/2009 | WO2009092997A2 Sand separation system and method |
| 07/30/2009 | WO2009092908A2 Device for measuring the movement of a subsea deformable pipeline |
| 07/30/2009 | WO2009092189A1 External valve type hydraulic self-sealing piston oil well pump |
| 07/30/2009 | WO2009052096A3 Water sensing adaptable in-flow control device and method of use |
| 07/30/2009 | WO2008051495A8 Systems and processes for use in treating subsurface formations |
| 07/30/2009 | US20090188673 Plunger lift system for well |
| 07/30/2009 | US20090188672 Diverse Bubble Size Generation |
| 07/30/2009 | US20090188669 Systems and methods for producing oil and/or gas |
| 07/30/2009 | US20090188667 System and method for the recovery of hydrocarbons by in-situ combustion |
| 07/30/2009 | US20090188666 Method And System For Completing A Well |
| 07/30/2009 | US20090188665 Monitoring of Downhole Parameters and Tools Utilizing Fiber Optics |
| 07/30/2009 | US20090188662 Pressure Balanced Piston for Subsurface Safety Valves |
| 07/30/2009 | US20090188661 Gravity drainage apparatus |
| 07/30/2009 | CA2714805A1 Oil recovery employing alkylene carbonates |
| 07/30/2009 | CA2712197A1 Sand separation system and method |
| 07/29/2009 | EP2082115A1 Frac-pack casing saver |
| 07/29/2009 | EP1888876A4 Biogenic fuel gas generation in geologic hydrocarbon deposits |
| 07/29/2009 | EP1819898A4 Method and apparatus for preventing slug flow in pipelines |
| 07/29/2009 | EP1759086B1 Screen for controlling sand production in a wellbore |
| 07/29/2009 | CN201280925Y Circulating heating device for oil pumping conduit |
| 07/29/2009 | CN201280924Y Steam cycle thick oil heating production pipe column |
| 07/29/2009 | CN201280923Y Rotating continuous water injection apparatus |
| 07/29/2009 | CN201280922Y Well frequency sweep antiscaling pouring machine |
| 07/29/2009 | CN201280921Y Special and ultra thick oil driving experiment production liquid constant pressure collecting device |
| 07/29/2009 | CN201280920Y Antiscaling strengthening pumping-aid device |
| 07/29/2009 | CN201280919Y High-gas containing well multi-phase mixed transfusion and handling arrangement |
| 07/29/2009 | CN201280918Y System for pumping fluid |
| 07/29/2009 | CN101493007A Natural gas separation and waste gas geological sequestration method based on mixed fluid self-separation |
| 07/29/2009 | CN101493006A Method for controlling bottom water fingering by foam |
| 07/29/2009 | CN101493005A Design method for acid proof truck-mounted blender |
| 07/29/2009 | CN101493004A Cracking agent precision control method |
| 07/29/2009 | CN101493003A Microbe oil production method after polymer drive |
| 07/29/2009 | CN100519986C Combined removing plug by acid technology of oil well |
| 07/29/2009 | CN100519985C Pendulum type balance intelligent control pumping unit |
| 07/28/2009 | US7566686 Providing a water-based drilling fluid comprising an effective amount of a choline salt, foamer, and water; circulating the drilling fluid through the wellbore hole during drilling, and injecting a gas into wellbore hole to reduce hydrostatic pressure of the drilling fluid |
| 07/28/2009 | US7565933 Non-aqueous foam composition for gas lift injection and methods for making and using same |
| 07/28/2009 | US7565932 Subsea flowline jumper containing ESP |
| 07/28/2009 | US7565930 Method and apparatus for stimulating wells with propellants |
| 07/28/2009 | US7565929 Degradable material assisted diversion |
| 07/28/2009 | US7565927 Monitoring an explosive device |
| 07/28/2009 | CA2625281C Field development system and associated methods |
| 07/28/2009 | CA2476669C Tubing expansion tool |
| 07/28/2009 | CA2452857C Apparatus, methods and applications for expanding tubulars in a wellbore |
| 07/28/2009 | CA2366863C Selective zonal isolation within a slotted liner |
| 07/28/2009 | CA2341937E Electro-thermal dynamic stripping process |
| 07/25/2009 | CA2746626A1 Plunger lift system for well |
| 07/23/2009 | WO2009091935A1 Method and apparatus for in situ testing of gas flow controllers |
| 07/23/2009 | WO2009091422A2 Wireless perforating gun initiation |
| 07/23/2009 | WO2009090477A2 Method for in situ combustion in a hydrocarbon deposit |
| 07/23/2009 | WO2009090460A2 Method for calculating the ratio of relative permeabilities of formation fluids and wettability of a formation downhole, and a formation testing tool to implement the same |
| 07/23/2009 | WO2009090372A1 Method of consolidating an underground formation |
| 07/23/2009 | WO2009090368A2 Reducing co2 emissions from oilfield diesel engines |
| 07/23/2009 | WO2009051936A4 Methods and apparatus to change the mobility of formation fluids using thermal and non-thermal stimulation |
| 07/23/2009 | WO2009043901A3 Inflatable packer with energy and triggering section |
| 07/23/2009 | WO2008152288A4 Bottom-surface connection installation comprising an elastic damping device absorbing the tension of the top end of a rigid subsurface pipe |
| 07/23/2009 | US20090183916 System and method for enhanced wellbore perforations |
| 07/23/2009 | US20090183882 Packer variable volume excluder and sampling method therefor |
| 07/23/2009 | US20090183881 Intervention system with dynamic seal |
| 07/23/2009 | US20090183877 Mesophase Fluids with Extended Chain Surfactants for Downhole Treatments |
| 07/23/2009 | US20090183874 Proppant addition system and method |
| 07/23/2009 | US20090183873 Profile Control Apparatus and Method for Production and Injection Wells |
| 07/23/2009 | US20090183872 Methods Of Recovering Hydrocarbons From Oil Shale And Sub-Surface Oil Shale Recovery Arrangements For Recovering Hydrocarbons From Oil Shale |
| 07/23/2009 | US20090183871 Filling the voids with impurity reactive particles of activated carbon, coke breeze, zero-valent iron, apatite, organophilic clay, zeolite, polymeric ion exchange resins, polymeric adsorbing resin, by vibration or vacuum; heat sealing a cover sheet on top and edge; control soil or water contamination |
| 07/23/2009 | US20090183870 Apparatus and method |
| 07/23/2009 | CA2710468A1 Reducing co2 emissions from oilfield diesel engines |
| 07/23/2009 | CA2709344A1 Method for calculating the ratio of relative permeabilities of formation fluids and wettability of a formation downhole, and a formation testing tool to implement the same |
| 07/22/2009 | CN201277024Y Slug flow catcher for oil-gas mixed transportation segment |
| 07/22/2009 | CN201277023Y Steam allotter |
| 07/22/2009 | CN201277022Y Concentric dual-tube layered polymer injecting column jacket capable of flushing |
| 07/22/2009 | CN201277021Y Pre-throttling polymer injecting unit |
| 07/22/2009 | CN201277020Y Skid-mounted polymer injection allocation apparatus |
| 07/22/2009 | CN201277019Y Self-driving interactive energy-saving pumping unit |
| 07/22/2009 | CN201277018Y Novel beam-balanced pumping unit |
| 07/22/2009 | CN201277017Y Pressure-reducing oil-pumping system apparatus |
| 07/22/2009 | CN201277016Y Pendulum bell type automatic-leveling energy-saving pumping unit |
| 07/22/2009 | CN201277015Y Weight machine-controlled lever-type petroleum pumping unit |
| 07/22/2009 | CN201277014Y Spring balancing device used for pumping unit |
| 07/22/2009 | CN201277013Y Reversing energy storage equipment used in petroleum pumping unit |
| 07/22/2009 | CN201277012Y Dual-clutch reversing method long-stroke pumping unit |
| 07/22/2009 | CN201277011Y Hydraulic automatic oil pumping unit |
| 07/22/2009 | CN201277010Y Dual-well pumping unit |
| 07/22/2009 | CN101490364A A method of controlling water condensation in a near wellbore region of a formation |
| 07/22/2009 | CN101490363A Perforating methods and devices for high wellbore pressure applications |
| 07/22/2009 | CN101490362A Method of radially expanding a tubular element |
| 07/22/2009 | CN101490361A Automatic control line insertion tools and system |
| 07/22/2009 | CN101487386A Automatic feeding apparatus for powder lot in bags |
| 07/22/2009 | CN100516458C Zonation method of thin interbed in low infiltration of fracturing layer segment |
| 07/22/2009 | CN100516457C Chemical pulse compound unplugging method |
| 07/22/2009 | CN100516456C Method for expanding a tubular element to different inner diameters |
| 07/22/2009 | CN100516455C Method and device for drilling four tube liquid pad selective thermal melting producing potassium salt mine |