| 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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| 06/07/2007 | US20070125542 High temperature gellant in low and high density brines |
| 06/07/2007 | US20070125541 Threaded connector for well servicing applications |
| 06/07/2007 | US20070125540 Monitoring an Explosive Device |
| 06/07/2007 | US20070125537 membranes with selectivity between methane and the stimulant or fracturing gas ( N2 or CO2) are available; enables the gas under treatment to be processed to yield a fracturing-gas depleted stream that meets prescribed targets for composition or methane recovery; automatic monitoring and control means |
| 06/07/2007 | US20070125536 introducing a fracturing fluid ( a biopolymer or synthetic polymer and a surfactant as viscosifying agent) into the subterranean formation to create a fracture, injecting a proppant ( gravel, sand) into the fracturing fluid to form a single layer of proppant in the fracture; enhanced hydrocarbon recovery |
| 06/07/2007 | US20070125535 Method for gravel or frac packing in a wellbore and for monitoring the packing process |
| 06/07/2007 | US20070125533 Methods of hydrotreating a liquid stream to remove clogging compounds |
| 06/07/2007 | US20070125530 Interactive and/or secure activation of a tool |
| 06/07/2007 | CA2632179A1 Particles |
| 06/06/2007 | EP1792050A1 Gas separator |
| 06/06/2007 | EP1792049A1 Screen for controlling inflow of solid particles in a wellbore |
| 06/06/2007 | EP1792048A1 Remote gas monitoring apparatus for seabed drilling |
| 06/06/2007 | EP1485573B1 Gas turbine for oil lifting |
| 06/06/2007 | EP1232330B1 Method and apparatus for seismic stimulation of fluid-bearing formations |
| 06/06/2007 | EP1188074B1 Method for tapping and detecting fresh water at sea |
| 06/06/2007 | DE112005001351T5 Wässriger Klebrigmacher und Verfahren zur Kontrolle von Feststoffteilchen Aqueous tackifier and method for controlling particulate matter |
| 06/06/2007 | CN2908913Y Internal tooth reduction gear for beam pumping unit |
| 06/06/2007 | CN2908912Y External tooth reduction gear for beam pumping unit |
| 06/06/2007 | CN2908856Y Short-plunger long-stroke oil-well pump |
| 06/06/2007 | CN2908855Y Test, perforation and sampling combination pump |
| 06/06/2007 | CN2908779Y Gas-liquid multiphase flow separation rectifier |
| 06/06/2007 | CN2908777Y One-way back-flushing device with waterflooding packer |
| 06/06/2007 | CN2908776Y Double-pipe filling technological tube column |
| 06/06/2007 | CN2908775Y Short stroke magnetic suspension linear electric machine driven beam-pumping unit |
| 06/06/2007 | CN2908774Y Superlow energy consumption tower crane beam-pumping unit |
| 06/06/2007 | CN2908768Y Uniform-pressure constant current plug |
| 06/06/2007 | CN1975103A Chemical pulse compound unplugging method |
| 06/06/2007 | CN1975102A Simple pendulum variable-pitch beam-balanced pump |
| 06/06/2007 | CN1975101A Inverted pendulum variable-pitch beam pump |
| 06/06/2007 | CN1975097A Inner pipe water pressure pulse flushing device |
| 06/06/2007 | CN1975094A Steel pipe for burying and expansion and burying method of oil well steel pipe |
| 06/06/2007 | CN1974589A Process of extracting rhanolipid as biosurfactant |
| 06/06/2007 | CN1320253C Mine for directly producing coal gas in coal layer and its production method |
| 06/05/2007 | US7227129 Flowshot technique |
| 06/05/2007 | US7226895 Drilling fluid systems for reducing circulation losses |
| 06/05/2007 | US7225880 Expandable liner hanger system and method |
| 06/05/2007 | US7225879 Method and apparatus for a monodiameter wellbore, monodiameter casing, monobore, and/or monowell |
| 06/05/2007 | US7225878 Methods and apparatus for production of hydrocarbons |
| 06/05/2007 | US7225875 Multi-layered wellbore junction |
| 06/05/2007 | US7225874 Providing a treatment fluid that comprises an aqueous base fluid and a gelling agent; providing a breaker that comprises a hydroquinone component; allowing the breaker to interact with the treatment fluid; and allowing the breaker to at least partially reduce the viscosity of the treatment fluid |
| 06/05/2007 | US7225872 Perforating tubulars |
| 06/05/2007 | US7225870 Hydraulic tools for setting liner top packers and method for cementing liners |
| 06/05/2007 | US7225869 Methods of isolating hydrajet stimulated zones |
| 06/05/2007 | US7225868 Steel pipe for embedding-expanding, and method of embedding-expanding oil well steel pipe |
| 06/05/2007 | US7225866 In situ thermal processing of an oil shale formation using a pattern of heat sources |
| 06/05/2007 | US7225523 Method for coupling and expanding tubing |
| 06/05/2007 | CA2401116C Sand removal and device retrieval tool |
| 06/05/2007 | CA2309286C Progressing cavity pump production tubing having permanent rotor bearings/core centering bearings |
| 06/05/2007 | CA2240037C Cable anchor assembly |
| 05/31/2007 | WO2007061864A1 Robust sand screen for oil and gas wells |
| 05/31/2007 | WO2007061816A2 Controlling the pressure within an annular volume of a wellbore |
| 05/31/2007 | WO2007061722A2 Separatory and emulsion breaking processes |
| 05/31/2007 | WO2007061333A1 Acoustic downhole device |
| 05/31/2007 | WO2007060446A1 Improvements in and relating to hydrocarbon recovery from a hydrocarbon reservoir |
| 05/31/2007 | WO2007060228A1 A method for receiving fluid from a natural gas pipeline |
| 05/31/2007 | WO2007029999A3 Containerised modular processing system |
| 05/31/2007 | WO2006110451A3 Gas-assisted gravity drainage (gagd) process for improved oil recovery |
| 05/31/2007 | WO2006042131A3 Perforation alignement tool for jet drilling, perforating and cleaning |
| 05/31/2007 | US20070123434 Foamed cement compositions and associated methods of use |
| 05/31/2007 | US20070123433 Treatment fluids and methods using zeolite and a delayed release acid for treating a subterranean formation |
| 05/31/2007 | US20070123431 Polymer hydration method using microemulsions |
| 05/31/2007 | US20070123429 Recyclable foamed fracturing fluids and methods of using the same |
| 05/31/2007 | US20070123428 E.g., 1,1'-thiobis(3-butoxypropan-2-ol) or a mixture of 1,1,-thiobis(3-dodecyloxypropan-2-ol), 1,1,-thiobis(3-tetradecyloxypropan-2-ol) and 1,1,-thiobis(3-hexadecyloxypropan-2-ol); compounds achieve low surface tension at low use levels |
| 05/31/2007 | US20070119767 Piggable separation system |
| 05/31/2007 | US20070119599 Interventionless Reservoir Control Systems |
| 05/31/2007 | US20070119598 System and method for downhole operation using pressure activated and sleeve valve assembly |
| 05/31/2007 | US20070119593 Scale dissolver fluid |
| 05/31/2007 | US20070119592 Earth heat transfer loop apparatus |
| 05/31/2007 | US20070119590 Apparatus and method for gravel packing |
| 05/31/2007 | US20070119588 Downhole gas separator |
| 05/31/2007 | US20070119098 Treatment of gas from an in situ conversion process |
| 05/31/2007 | CA2811048A1 Separatory and emulsion breaking processes |
| 05/31/2007 | CA2630337A1 Controlling the pressure within an annular volume of a wellbore |
| 05/31/2007 | CA2628148A1 Separatory and emulsion breaking processes |
| 05/30/2007 | EP1790853A1 A nc reciprocating immersible oil pump |
| 05/30/2007 | EP1789650A1 Methods for controlling fluid loss |
| 05/30/2007 | CN2906559Y Double-parameter beam sensor |
| 05/30/2007 | CN2906209Y Single-crank double-stoke flexible type pumping unit driving member |
| 05/30/2007 | CN2906129Y Frequency conversion drive device for direct drive type screw pump |
| 05/30/2007 | CN2906128Y Ground driving gear of divided screw oil well pump |
| 05/30/2007 | CN2906059Y Lotiform steam distributor |
| 05/30/2007 | CN2906058Y Sewage filtering well-cleanout device for water injection well |
| 05/30/2007 | CN2906057Y Offset water distributor |
| 05/30/2007 | CN2906056Y Offset water distributor |
| 05/30/2007 | CN2906055Y Eccentric water distributor with double guide |
| 05/30/2007 | CN2906054Y Anti-sand anti-backflow and anti-fouling multifunctional eccentric separated-zone water injection string |
| 05/30/2007 | CN2906053Y Energy-saving retarder for pumping unit |
| 05/30/2007 | CN2906052Y Pipe-free pumping unit |
| 05/30/2007 | CN2906051Y Wheeled type swinging double-rotor linear motor pumping unit |
| 05/30/2007 | CN2906044Y Throw-in type well-cleanout bottom screen packer |
| 05/30/2007 | CN2906043Y Throw-in type well-cleanout bottom screen packer |
| 05/30/2007 | CN2906041Y Water injection well head device |
| 05/30/2007 | CN1973112A Screen for controlling inflow of solid particles in a wellbore |
| 05/30/2007 | CN1973111A Screen for controlling sand production in a wellbore |
| 05/30/2007 | CN1973110A Closed loop control system for controlling production of hydrocarbon fluid from an underground formation |
| 05/30/2007 | CN1973093A Top tensioned riser |
| 05/30/2007 | CN1970992A Dynamic test device for composite perforator |
| 05/30/2007 | CN1970991A Method for metering oil production yield and analyzing and optimizing operating condition of oil well and system thereof |
| 05/30/2007 | CN1970989A Throwing type high energy gas fracturing device |
| 05/30/2007 | CN1970988A Dual-cylinder double-effect power-saving economical pumping unit for use in steel strip reciprocating type ultra-long-stroke pumping device |