| 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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| 01/13/2005 | US20050006100 Self orienting lateral junction system |
| 01/13/2005 | US20050006099 Method for growth of a hydraulic fracture along a well bore annulus and creating a permeable well bore annulus |
| 01/13/2005 | US20050006098 Method and apparatus for treating a well |
| 01/13/2005 | US20050006097 Variable frequency temperature limited heaters |
| 01/13/2005 | US20050006092 Cross-over tool return port cover |
| 01/13/2005 | US20050006089 Low cost method and apparatus for fracturing a subterranean formation with a sand suspension |
| 01/13/2005 | US20050006088 Acoustic well recovery method and device |
| 01/13/2005 | US20050006086 Installation for the separation of fluids |
| 01/13/2005 | US20050005668 Tubing expansion |
| 01/13/2005 | CA2530336A1 Hydraulic fracturing method |
| 01/12/2005 | EP1496195A1 Process for obtaining raw materials containing clay minerals |
| 01/12/2005 | EP1496194A2 Method and apparatus for treating a well |
| 01/12/2005 | EP1496096A2 Additive for oil-based drilling fluids |
| 01/12/2005 | EP1495209A1 Slotted expandable centraliser |
| 01/12/2005 | EP1412615B1 In-situ evaporation |
| 01/12/2005 | CN2670629Y Eccentrically worn preventor for piston pulling rod of oil sucking pump |
| 01/12/2005 | CN2670628Y Multifunctional oil sucking pumps |
| 01/12/2005 | CN2670626Y Rod oil-sucking pumps |
| 01/12/2005 | CN2670624Y Screw connected fishing eccentric underground controlling tool for oil and gas fields |
| 01/12/2005 | CN2670597Y Injector of water well |
| 01/12/2005 | CN2670596Y Filling material weight balancing body of sucker |
| 01/12/2005 | CN2670595Y Tractor of oil sucker driving wheel |
| 01/12/2005 | CN2670594Y Kinematic lever force energy-saving regulator |
| 01/12/2005 | CN1564904A Apparatus, method and system for single well solution-mining |
| 01/12/2005 | CN1564903A Contractable and expandable tubular wellbore system |
| 01/12/2005 | CN1564902A Adjustable well screen assembly |
| 01/12/2005 | CN1563719A Linear dynamo pumping unit with built-in stator |
| 01/12/2005 | CN1563716A Pulley type flexible driving pumping unit |
| 01/12/2005 | CN1563666A Ball plug jetting support device for oil extraction, liquor drainage and gas production |
| 01/12/2005 | CN1563665A Automatic controlled, energy saving environmental protected beam-pumping unit |
| 01/12/2005 | CN1563664A Well of coal-bed gas |
| 01/12/2005 | CN1184407C Group well cracking controlled water-soluble recovery method for saline minerals bed |
| 01/11/2005 | US6840709 Distributed natural gas storage system(s) using oil & gas & other well(s) |
| 01/11/2005 | US6840494 Gate valve with flow-through gate |
| 01/11/2005 | US6840325 Expandable connection for use with a swelling elastomer |
| 01/11/2005 | US6840324 System for, and a method of pumping fluids from a well |
| 01/11/2005 | US6840323 Tubing annulus valve |
| 01/11/2005 | US6840321 Multilateral injection/production/storage completion system |
| 01/11/2005 | US6840317 Wireless downwhole measurement and control for optimizing gas lift well and field performance |
| 01/11/2005 | US6840316 Tracker injection in a production well |
| 01/11/2005 | CA2246504C Downhole flow stimulation in a natural gas well |
| 01/11/2005 | CA2154884C Subsea wellhead connections |
| 01/06/2005 | WO2005001244A2 Expandable sand control screen and method for use of same |
| 01/06/2005 | WO2005001239A1 Fiber optics laser perforation tool |
| 01/06/2005 | WO2005001238A1 Device for arranging a shut-off valve in a well |
| 01/06/2005 | WO2005001232A2 Determination of thermal properties of a formation |
| 01/06/2005 | WO2005001231A2 Submersible pump |
| 01/06/2005 | WO2005000993A1 Compositions and methods for improving proppant pack permeability and fracture conductivity in a subterranean well |
| 01/06/2005 | WO2004087496A3 Method and device for stabilizing and controlling lowering or raising of a structure between the surface and the sea floor |
| 01/06/2005 | US20050002812 Method of adapting a downhole multi-phase twin screw pump for use in wells having a high gas content and a downhole multi-phase twin screw pump |
| 01/06/2005 | US20050002775 Method for mounting a frac blender on a transport vehicle |
| 01/06/2005 | US20050001429 Tubing connector |
| 01/06/2005 | US20050000733 Systems and methods for performing mud pulse telemetry using a continuously variable transmission |
| 01/06/2005 | US20050000697 Formed tubulars |
| 01/06/2005 | US20050000693 Release tool for coiled tubing |
| 01/06/2005 | US20050000692 Spiral tubular tool and method |
| 01/06/2005 | US20050000690 cementing in a subterranean formation penetrated by a well bore that comprises providing a cement composition comprising water, a cement, a strength-retrogression additive, and an acid like ethylenediamine tetra acetic acid, |
| 01/06/2005 | US20050000689 Method for conditioning wellbore fluids and sucker rod therefore |
| 01/06/2005 | US20050000687 Device for performing a downhole operation |
| 01/06/2005 | US20050000686 Contractable and expandable tubular wellbore system |
| 01/05/2005 | EP1493898A1 Well treatment with invertible oil water emulsions |
| 01/05/2005 | EP1268972B1 Pressure boost pump |
| 01/05/2005 | CN2668930Y Drilling machine power driving system |
| 01/05/2005 | CN2668887Y Outer-pipe-free movable-cylinder sand-proof desilting oil-well pump |
| 01/05/2005 | CN2668849Y Underground oil-water-separation extracting-injecting apparatus of electric immersible oil pump |
| 01/05/2005 | CN2668848Y Eccentric injection-ditribution apparatus |
| 01/05/2005 | CN2668847Y Expanding device for solid expanding tube |
| 01/05/2005 | CN2668846Y Ion-exchange fiber sand-filtering pipe |
| 01/05/2005 | CN2668845Y Impact-corrosion-resisting high-strength metal sand-filtering pipe |
| 01/05/2005 | CN2668844Y Linear-motor driven loose beam type oil pump |
| 01/05/2005 | CN2668840Y Acidifying pressing-crack packaging device |
| 01/05/2005 | CN2668824Y Device for reducing friction resistant force of sound well pipe-column |
| 01/05/2005 | CN1560476A Oil production system with electric oil-submersible dule screw rod pump |
| 01/05/2005 | CN1560431A Method of bridge type eccentric pouring water layering pressure testing |
| 01/05/2005 | CN1560428A Disision method of water plugging for bottom-water oil reservoir well |
| 01/05/2005 | CN1560184A Emulsive resin deep adjusting driving agent |
| 01/05/2005 | CN1560181A Preparation process of composite displacing oil agent for tertiary oil production |
| 01/05/2005 | CN1560178A Anti-salt type thicking oil reducing viscosity agent and preparation process thereof |
| 01/05/2005 | CN1560177A High temp. thicking oil viscosity reducing agent and preparation process thereof |
| 01/05/2005 | CN1560176A Thermal resisting anti-salt thicking oil viscosity reducing agent and preparation process thereof |
| 01/05/2005 | CN1560119A Preparation process of slow cross-linking agent for acrylic amide gel |
| 01/05/2005 | CN1183313C Steel cable lifting belt driving wheel for oil production machine |
| 01/04/2005 | US6838006 Oil field separation facility control system utilizing total organic carbon analyzer |
| 01/04/2005 | US6837310 Intelligent perforating well system and method |
| 01/04/2005 | US6837309 Methods and fluid compositions designed to cause tip screenouts |
| 01/04/2005 | US6837308 Apparatus and method for gravel packing |
| 01/04/2005 | CA2349816C Downhole well-control valve reservoir monitoring and drawdown optimization system |
| 01/04/2005 | CA2175248C Method for the recovery of coal bed methane |
| 01/04/2005 | CA2149262C Hydraulic set liner hanger and method |
| 12/30/2004 | US20040265066 Apparatus and method for horizontal subsea connection |
| 12/30/2004 | US20040263350 Permanent downhole, wireless, two-way telemetry backbone using redundant repeaters |
| 12/30/2004 | US20040262980 Method and means for recovering hydrocarbons from oil sands by underground mining |
| 12/30/2004 | US20040262044 Systems and methods for directionally drilling a borehole using a continuously variable transmission |
| 12/30/2004 | US20040262043 Systems and methods for the drilling and completion of boreholes using a continuously variable transmission to control one or more system components |
| 12/30/2004 | US20040262014 Mono-diameter wellbore casing |
| 12/30/2004 | US20040262011 Surface flow controlled valve and screen |
| 12/30/2004 | US20040262006 Method and apparatus for multilateral junction |
| 12/30/2004 | US20040261999 Permeable cement and methods of fracturing utilizing permeable cement in subterranean well bores |
| 12/30/2004 | US20040261995 Compositions and methods for improving proppant pack permeability and fracture conductivity in a subterranean well |
| 12/30/2004 | US20040261994 Expandable sand control screen and method for use of same |