| 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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| 08/07/2007 | CA2472824C Straddle packer with third seal |
| 08/07/2007 | CA2470592C Expanding downhole tubing by compression |
| 08/07/2007 | CA2365960C Method of selective plastic expansion of sections of a tubing |
| 08/07/2007 | CA2265329C Piston motor protector and motor and pumping system incorporating the same |
| 08/07/2007 | CA2259067C Adjustable shroud for a submergible pumping system and pumping system incorporating same |
| 08/07/2007 | CA2239590C Method of suspending an esp within a wellbore |
| 08/02/2007 | WO2007086771A1 Method for hydraulic fracturing of subterranean formation |
| 08/02/2007 | WO2007086004A1 Method of treating a subterranean formation using a rheology model for fluid optimization |
| 08/02/2007 | WO2007085047A1 Remote plugging device for wells |
| 08/02/2007 | WO2007085046A1 Bore selector |
| 08/02/2007 | US20070179065 Resin compositions and methods of using such resin compositions in subterranean applications |
| 08/02/2007 | US20070179064 Filtration control additives comprising a water soluble terpolymer of acrylamide-acrylamido-2-methylpropanesulfonic acid or sodium salt-vinyl-2-pyrrolidone/N-/ terpolymer; sulfonated asphalt and lignite as plugging agent; quickly form a thin, erodable filter cake, have high temperature stability |
| 08/02/2007 | US20070176422 Method of assembling two hermetic threaded tubular joints comprising a local and initial added thickness, by means of plastic expansion |
| 08/02/2007 | US20070175641 Method and apparatus for lifting liquids from gas wells |
| 08/02/2007 | US20070175640 Multi-Well Controller |
| 08/02/2007 | US20070175638 Petroleum Extraction from Hydrocarbon Formations |
| 08/02/2007 | US20070175637 System and method for forming cavities in a well |
| 08/02/2007 | US20070175636 Method and apparatus for jet-fluid abrasive cutting |
| 08/02/2007 | US20070175635 Controlling inorganic scale of zinc sulfide or iron sulfide in a subterranean formation or wellbore, by pumping downhole a copolymer comprising a quaternary ammonium salt and an acrylamide unit; well completion; copolymer of acrylamide and diallyldimethylammonium salt and possibly acrylic acid or salt |
| 08/02/2007 | US20070175634 Apparatus and method for repairing failure spots on subterranean well tubulars using shock waves |
| 08/02/2007 | US20070175633 System and Method for Remote Real-Time Surveillance and Control of Pumped Wells |
| 08/02/2007 | DE102006006669A1 Core for crude oil and natural gas extraction, is formed using raw material mixture comprising solid powder resin and finely powdered raw material, and has preset density in thermally treated state |
| 08/02/2007 | CA2640125A1 Method of treating a subterranean formation using a rheology model for fluid optimization |
| 08/01/2007 | EP1812771A1 Improvements in and relating to oil well perforators |
| 08/01/2007 | EP1812682A1 Improvements in and relating to oil well perforators |
| 08/01/2007 | EP1709292B1 Method of creating a zonal isolation in an underground wellbore |
| 08/01/2007 | EP1397578B1 Expandable sand screen for use in a wellbore |
| 08/01/2007 | CN2930074Y Motor lifting slide rail mechanism for oil pumping unit |
| 08/01/2007 | CN2929180Y Thermal chemical oil production injection agent moving car |
| 08/01/2007 | CN2929179Y Combined anti-sand sieve tube |
| 08/01/2007 | CN2929178Y Anti-sand sieve tube with sheath |
| 08/01/2007 | CN2929177Y Regulator for oil pumping machine well balance |
| 08/01/2007 | CN2929176Y Submersible double well hydraulic oil pumping machine |
| 08/01/2007 | CN2929175Y Beam oil pumping machine base |
| 08/01/2007 | CN2929174Y Coal layer gas pumping machine |
| 08/01/2007 | CN2929173Y Novel energy saving variable-speed oil pumping machine |
| 08/01/2007 | CN2929172Y Symmetric balance oil pumping machine with external rotor motor |
| 08/01/2007 | CN2929171Y Chemical adder for oil well with pressure |
| 08/01/2007 | CN2929169Y Anti-paraffin separator for petroleum production |
| 08/01/2007 | CN2929158Y Wellhead device of concentric double tube injection water |
| 08/01/2007 | CN2929152Y Multiple section type plish rod regulator |
| 08/01/2007 | CN2929151Y Polish rod anti-hit safety clamp for oil pumping machine |
| 08/01/2007 | CN2929147Y Oil pumping rod oriented rotary device |
| 08/01/2007 | CN2929140Y Hydraulic top driver |
| 08/01/2007 | CN1329625C Expandable tubular element for use in a wellbore |
| 08/01/2007 | CN1329624C Gravel pack method |
| 08/01/2007 | CN1329622C A method and device by a displacement tool |
| 08/01/2007 | CN1329621C Device for installation of a profile liner in a well |
| 08/01/2007 | CN1329619C System and method to reduce hydrostatic pressure in risers using buoyant spheres |
| 08/01/2007 | CN1329476C Acidification composition for oil well |
| 08/01/2007 | CN1329474C Alcohol-base fracturing fluid |
| 08/01/2007 | CN1329473C Low-molecular environmentally-friendly fracturing fluid and use of recovery liquid thereof |
| 08/01/2007 | CN1329420C Cladded quartz sand fracturing support agent for oil production |
| 08/01/2007 | CN101010485A Method and system for gathering, transporting and marketing offshore oil and gas |
| 08/01/2007 | CN101010484A Solid state pump |
| 08/01/2007 | CN101008433A Belt tension device of pumping unit |
| 08/01/2007 | CN101008408A Normal and reverse circulating jet pump with hydraulically-driven multiple switching sliding sleeve |
| 08/01/2007 | CN101008381A Pumping system of rodless piston pump |
| 08/01/2007 | CN101008380A Lifting device of electric submersible piston pump in horizontal wells |
| 07/31/2007 | US7249634 Apparatus for production in oil wells |
| 07/31/2007 | US7249633 Release tool for coiled tubing |
| 07/31/2007 | US7249631 Slip on screen with expanded base pipe |
| 07/31/2007 | CA2576785A1 Multi-well controller |
| 07/31/2007 | CA2535774A1 Storm water filter with debris sweep |
| 07/31/2007 | CA2499612C Method for removing gravel pack screens |
| 07/31/2007 | CA2357635C Method for removing condensables from a natural gas stream |
| 07/31/2007 | CA2300556C Under-balanced drilling separation apparatus and methods |
| 07/31/2007 | CA2291188C Sub-sea pumping system and associated method |
| 07/31/2007 | CA2254747C Method and apparatus for controlling a submergible pumping system |
| 07/26/2007 | WO2007086867A1 Selective electromagnetic production tool |
| 07/26/2007 | WO2007084763A2 Radio frequency technology heater for unconventional resources |
| 07/26/2007 | WO2007084348A1 Real time monitoring and control of thermal recovery operations for heavy oil reservoirs |
| 07/26/2007 | WO2007084132A1 Well tool having magnetically coupled position sensor |
| 07/26/2007 | WO2007083192A1 Wellbore system and method using a flow-actuated diverter valve |
| 07/26/2007 | WO2007082590A1 Method of expanding a tubular element in a wellbore |
| 07/26/2007 | WO2007049246A3 A well fluid separator tank for separation of fluid comprising water, oil and gas, use of such a tank, and a method for separating a well fluid including water, oil, and gas |
| 07/26/2007 | WO2007049245A3 A separator tank for separation of fluid comprising water, oil and gas |
| 07/26/2007 | US20070173413 Non-volatile phosphorus hydrocarbon gelling agent |
| 07/26/2007 | US20070173412 Lost circulation compositions |
| 07/26/2007 | US20070169943 Method and device for establishing an underground well |
| 07/26/2007 | US20070169941 System and method for unloading water from gas wells |
| 07/26/2007 | US20070169938 Methods of controlled acidization in a wellbore |
| 07/26/2007 | US20070169932 Method of Treating a Subterranean Formation using a Rheology Model for Fluid Optimization |
| 07/26/2007 | US20070169929 Apparatus and method for bonding a transmission line to a downhole tool |
| 07/26/2007 | DE19817110B4 Verfahren zur chemisch induzierten Erhöhung der Permeabilität einer unterirdischen Kohleformation A method for chemically-induced increase in permeability of a subterranean coal formation |
| 07/26/2007 | DE102006003201A1 Verfahren zum Brechen der Viskosität Polymer-verdickter wässriger Systeme für die Erdöl- und Erdgasgewinnung Method for breaking the viscosity polymer-thickened aqueous systems for the oil and gas extraction |
| 07/26/2007 | CA2637984A1 Radio frequency technology heater for unconventional resources |
| 07/26/2007 | CA2636496A1 Method of expanding a tubular element in a wellbore |
| 07/26/2007 | CA2636349A1 Real time monitoring and control of thermal recovery operations for heavy oil reservoirs |
| 07/25/2007 | EP1810376A2 Means for transferring electric power in a turret-moored vessel and method of assembly |
| 07/25/2007 | EP1809860A1 Safety valve |
| 07/25/2007 | EP1809859A1 A method and a device for setting a casing |
| 07/25/2007 | EP1704299B1 Non-threaded expandable pipe connection system |
| 07/25/2007 | EP1687508B1 Method of reducing sand production from a wellbore |
| 07/25/2007 | EP1588022B1 A system and a method for prediction and treatment of slugs being formed in a flow line or wellbore tubing |
| 07/25/2007 | EP1549824B1 Mono diameter wellbore casing |
| 07/25/2007 | EP1549823B1 Bottom plug for forming a mono diameter wellbore casing |
| 07/25/2007 | EP1511912B1 Downhole tool deployment safety system and methods |
| 07/25/2007 | EP1456504B1 A novel fluid system having controllable reversible viscosity |
| 07/25/2007 | EP1438480B1 Method for conditioning wellbore fluids and sucker rod therefor |