| 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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| 04/22/2008 | CA2447308C Method and apparatus for cleaning a fractured interval between two packers |
| 04/22/2008 | CA2399906C Invert well service fluid and method |
| 04/22/2008 | CA2298139C Wellhead |
| 04/22/2008 | CA2288381C Open hole zonal isolation and control |
| 04/19/2008 | CA2606619A1 Gas handling in a well environment |
| 04/19/2008 | CA2577749A1 Underwater seafloor drilling rig |
| 04/17/2008 | WO2008045959A1 Hydrocarbon recovery using fluids |
| 04/17/2008 | WO2008045946A1 Producing resources using steam injection |
| 04/17/2008 | WO2008045734A2 In situ fluid formation for cleaning oil-or synthetic-oil-based mud |
| 04/17/2008 | WO2008045408A1 Method for producing viscous hydrocarbon using steam and carbon dioxide |
| 04/17/2008 | WO2008045381A2 Dual subsea production chokes for high pressure well production |
| 04/17/2008 | WO2008044498A1 Method and apparatus for mining oil |
| 04/17/2008 | WO2007106691A3 Inhibiting reservoir souring using a treated injection water |
| 04/17/2008 | US20080087717 Methods, systems, and devices for saving natural resources usable in a building structure |
| 04/17/2008 | US20080087438 Self-propelled swabbing device and method |
| 04/17/2008 | US20080087437 Downhole oil recovery system and method of use |
| 04/17/2008 | US20080087429 Methods and compositions of a storable relatively lightweight proppant slurry for hydraulic fracturing and gravel packing applications |
| 04/17/2008 | US20080087428 Enhanced shale oil production by in situ heating using hydraulically fractured producing wells |
| 04/17/2008 | US20080087427 Combined development of oil shale by in situ heating with a deeper hydrocarbon resource |
| 04/17/2008 | US20080087426 Method of developing a subsurface freeze zone using formation fractures |
| 04/17/2008 | US20080087425 Methods for producing oil and/or gas |
| 04/17/2008 | US20080087423 Method and Apparatus for a Monodiameter Wellbore, Monodiameter Casing, Monobore, and/or Monowell |
| 04/17/2008 | US20080087420 Optimized well spacing for in situ shale oil development |
| 04/17/2008 | US20080087418 Pipeline |
| 04/17/2008 | CA2661946A1 Oilfield material delivery mechanism |
| 04/17/2008 | CA2644612A1 System, method and apparatus for hydrogen-oxygen burner in downhole steam generator |
| 04/16/2008 | EP1910643A1 Methods of forming packs in a plurality of perforations in a casing of a wellbore |
| 04/16/2008 | EP1738058B1 Inhibiting effects of sloughing in wellbores |
| 04/16/2008 | EP1738054B1 Reducing viscosity of oil for production from a hydrocarbon containing formation |
| 04/16/2008 | EP1738052B1 Inhibiting reflux in a heated well of an in situ conversion system |
| 04/16/2008 | CN201047344Y Straight-line balance type long stroke energy-saving oil pumping machine |
| 04/16/2008 | CN201047279Y On-off connector sanding machines |
| 04/16/2008 | CN201047278Y Pipe column partial pressure three layers pipe column |
| 04/16/2008 | CN201047277Y Steam allotter |
| 04/16/2008 | CN201047276Y Gas-filling boiler furnace capable of burning coal water slurry special for oilfield |
| 04/16/2008 | CN201047275Y Integral bending bend |
| 04/16/2008 | CN201047274Y Integral bending beam type oil pumping machine |
| 04/16/2008 | CN201047273Y Hydraulic beam-pumping unit |
| 04/16/2008 | CN201047272Y Huge tower trestle type long stroke beam-pumping unit unloading protecting equipment |
| 04/16/2008 | CN201047271Y Oil pumping motor-pumped well de-loading machine |
| 04/16/2008 | CN201047258Y Smooth sucker rod security locking device |
| 04/16/2008 | CN101163859A In situ conversion process system using at least two areas with inceptor well positioned in surface |
| 04/16/2008 | CN101163858A In situ conversion process utilizing a closed loop heating system |
| 04/16/2008 | CN101163857A Varying properties along lengths of temperature limited heaters |
| 04/16/2008 | CN101163856A Grouped exposing metal heater |
| 04/16/2008 | CN101163854A Temperature limited heater using non-ferromagnetic conductor |
| 04/16/2008 | CN101162018A Decelerator-free oil-submersible screw pump |
| 04/16/2008 | CN101162017A Oil-submersible electromagnetic oil extraction pump |
| 04/16/2008 | CN101162016A Yield highly effective oil-well pump for mechanical oil production |
| 04/16/2008 | CN101161988A In situ combustion slug and steam driving combined type crude oil producing method |
| 04/16/2008 | CN101161987A Combustion soaking heavy crude producing technique |
| 04/16/2008 | CN101161986A Small-diameter eccentric bridge type water distributor |
| 04/16/2008 | CN101161985A Energy-saving beam pumping unit |
| 04/16/2008 | CN101161984A Trace heating for oil well viscosity,coagulation reduction and dewaxing |
| 04/15/2008 | US7358215 Quaternary ammonium salts as thickening agents for aqueous systems |
| 04/15/2008 | US7357190 Radial expansion of tubular members |
| 04/15/2008 | US7357189 Seal |
| 04/15/2008 | US7357188 Mono-diameter wellbore casing |
| 04/15/2008 | US7357186 Recirculation gas separator |
| 04/15/2008 | US7357182 Method and apparatus for completing lateral channels from an existing oil or gas well |
| 04/15/2008 | US7357180 Inhibiting effects of sloughing in wellbores |
| 04/15/2008 | CA2482532C Bearing and lubrication system for earth boring bit |
| 04/15/2008 | CA2469890C Wet electric heating process |
| 04/15/2008 | CA2455487C Gas lift apparatus for a well |
| 04/15/2008 | CA2418758C Interactive and/or secure activation of a tool |
| 04/10/2008 | WO2008042794A1 Peripheral sealing system for pre-tensioned screens |
| 04/10/2008 | WO2008041990A1 Methods and systems for stimulating biogenic production of natural gas in a subterranean formation |
| 04/10/2008 | WO2008041856A1 Offshore power plant |
| 04/10/2008 | WO2008041010A1 Methods and systems for well stimulation using multiple angled fracturing |
| 04/10/2008 | WO2007089944A3 Method for recovery of stranded oil |
| 04/10/2008 | US20080085844 Method and composition for recovering hydrocarbon fluids from a subterranean reservoir |
| 04/10/2008 | US20080085842 producing a guar gum powder, the method comprising the steps of: (a) flaking undehusked guar splits; and (b) grinding the flaked, undehusked guar splits to obtain guar gum powder. According to another aspect of the invention, a method is provided for treating a subterranean formation penetrated by a well |
| 04/10/2008 | US20080083541 Apparatus For Radially Expanding And Plastically Deforming A Tubular Member |
| 04/10/2008 | US20080083538 Methods and systems for well stimulation using multiple angled fracturing |
| 04/10/2008 | US20080083537 System, method and apparatus for hydrogen-oxygen burner in downhole steam generator |
| 04/10/2008 | US20080083536 Producing resources using steam injection |
| 04/10/2008 | US20080083534 Hydrocarbon recovery using fluids |
| 04/10/2008 | US20080083531 Methods and systems for well stimulation using multiple angled fracturing |
| 04/10/2008 | DE19842435B4 Chemisch induzierte Stimulationen unterirdischer, kohlenstoffhaltiger Formationen mit wässrigen, oxidierenden Lösungen Chemically induced stimulation of subterranean carbonaceous formations with aqueous oxidizing solutions |
| 04/10/2008 | DE19842424B4 Chemisch induzierte Stimulationen unterirdischer, kohlenstoffhaltiger Formationen mit gasförmigen Oxidationsmitteln Chemically induced stimulation of subterranean carbonaceous formations with gaseous oxidants |
| 04/10/2008 | DE19842407B4 Chemisch induzierte Stimulation der Schlechtenbildung in einer unterirdischen Kohleformation Chemically induced stimulation of bad education in an underground coal formation |
| 04/10/2008 | CA2665328A1 Methods and systems for well stimulation using multiple angled fracturing |
| 04/10/2008 | CA2664446A1 Peripheral sealing system for pre-tensioned screens |
| 04/10/2008 | CA2662534A1 Offshore power plant |
| 04/09/2008 | EP1907747A1 Mid-seal for expandable connections |
| 04/09/2008 | EP1907666A2 Cavity well system |
| 04/09/2008 | EP1563161B1 Re-entry in multilateral wellbores |
| 04/09/2008 | CN201045358Y Hydraulic jet pump |
| 04/09/2008 | CN201045343Y Oil-well pump protectors |
| 04/09/2008 | CN201045294Y Insulation electric pole net |
| 04/09/2008 | CN201045293Y High dense holes multilevel pulse sand carrying compound perforation device |
| 04/09/2008 | CN201045292Y Circulation composite hanger for sieve tube well completion |
| 04/09/2008 | CN201045291Y Oil pumping machine non-metal protective cover |
| 04/09/2008 | CN201045290Y Large hollow stem oil pumping system |
| 04/09/2008 | CN101160448A Pipe separator inlet |
| 04/09/2008 | CN101160447A Multple port cross-over design for frac pack erosion mititgation |
| 04/09/2008 | CN101158344A Oil-well pumping communicate separator |
| 04/09/2008 | CN101158283A Open type gearwheel energy-saving beam-pumping unit |
| 04/09/2008 | CN101158282A Mobile regulating centroidal oil pumping machine |
| 04/09/2008 | CN101158281A Cement through side pocket mandrel |