| 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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| 02/26/2008 | CA2367712C Method and system for increasing oil production from an oil well producing a mixture of oil and gas |
| 02/26/2008 | CA2328420C Deformable liner tube |
| 02/21/2008 | WO2008022141A1 A fluid loss control system and method for controlling fluid loss |
| 02/21/2008 | WO2008022106A1 Distributed intelligence for enhanced monitoring and control of oilfield processes |
| 02/21/2008 | WO2008021922A2 Well screen apparatus and method of manufacture |
| 02/21/2008 | WO2008021883A1 Methods for producing oil and/or gas |
| 02/21/2008 | WO2008020388A2 Friction reduction fluids |
| 02/21/2008 | WO2007144631A3 Cyclone separator and method of separation |
| 02/21/2008 | WO2007126676A3 In situ co-development of oil shale with mineral recovery |
| 02/21/2008 | WO2007089713A3 Biogenic fuel gas generation in geologic hydrocarbon deposits |
| 02/21/2008 | US20080045422 Aqueous treatment fluid of acrylamide and 2-(2-ethoxy-ethoxy)-ethyl acrylate for introduction into a subterranean formation; reduced flocculation tendencies |
| 02/21/2008 | US20080042428 Protective compression and tension sleeves for threaded connections for radially expandable tubular members |
| 02/21/2008 | US20080041631 Method and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells |
| 02/21/2008 | US20080041596 Coiled tubing well tool and method of assembly |
| 02/21/2008 | US20080041595 Fluid loss control system and method for controlling fluid loss |
| 02/21/2008 | US20080041594 Methods and Systems For Determination of Fluid Invasion In Reservoir Zones |
| 02/21/2008 | US20080041592 Oil Well Perforators |
| 02/21/2008 | US20080041589 Method of completing a well with sand screens |
| 02/21/2008 | US20080041588 Inflow Control Device with Fluid Loss and Gas Production Controls |
| 02/21/2008 | US20080041586 Controlling The Flow Of A Multiphase Fluid From A Well |
| 02/21/2008 | US20080041582 Apparatus for controlling the inflow of production fluids from a subterranean well |
| 02/21/2008 | US20080041579 Downhole reciprocating pumps, a non tap tool with a clutch |
| 02/21/2008 | US20080041577 Screen for Controlling Inflow of Solid Particles in a Wellbore |
| 02/21/2008 | DE102006038809A1 Wasserlösliche und biologisch abbaubare Copolymere auf Polyamidbasis und deren Verwendung Water-soluble and biologically degradable copolymers based on polyamide and their use |
| 02/21/2008 | CA2776519A1 Subterranean treatment fluids, friction reducing copolymers, and associated methods |
| 02/21/2008 | CA2660296A1 Methods for producing oil and/or gas |
| 02/20/2008 | EP1889999A1 Method of optimising the assisted recovery of a fluid placed in a porous medium by front follow-up |
| 02/20/2008 | EP1888876A1 Biogenic fuel gas generation in geologic hydrocarbon deposits |
| 02/20/2008 | EP1888720A2 Method for depleting hydrogen sulfide in natural gas from the exploitation of crude oil/natural gas mixtures |
| 02/20/2008 | CN201025260Y Deviated friction prevention and heavy oil sucker rod |
| 02/20/2008 | CN201025259Y Sand sediment oil pump and oil valve |
| 02/20/2008 | CN201025257Y Fully automatic hydraulic pressure and reverse rotation prevention device |
| 02/20/2008 | CN201025020Y Controllable acid distribution pipe |
| 02/20/2008 | CN201025019Y Selective acidification technology pipe pole for horizontal well sealer flow saving |
| 02/20/2008 | CN201025018Y Once pipe pole using hierarchical acidification pressure crack technology |
| 02/20/2008 | CN201025017Y Drive convergence injection well eccentric blocker |
| 02/20/2008 | CN201025016Y Resolvable temporary water blockage mouth |
| 02/20/2008 | CN201025015Y Water mixing device |
| 02/20/2008 | CN201025014Y Under-well dual-layer distribution water supply device |
| 02/20/2008 | CN201025013Y A hydraulic pressure controlled connector |
| 02/20/2008 | CN201025012Y Separated non contact explosion device transfer device |
| 02/20/2008 | CN201025011Y 30 hole/meter 127 type ejector |
| 02/20/2008 | CN201025010Y Compound sand sifting control pipe |
| 02/20/2008 | CN201025009Y Three prevention tool |
| 02/20/2008 | CN201025008Y Sand filling tool for oil water well |
| 02/20/2008 | CN201025007Y Two-section hierarchical high pressure filling and sand prevention tool |
| 02/20/2008 | CN201025006Y Once extrusion and cycling filling tool for high pressure sealing |
| 02/20/2008 | CN201025005Y Oil exploration device for coordination and trip pump of non metal continuous oil pipe |
| 02/20/2008 | CN201025004Y Direct balance device |
| 02/20/2008 | CN201025003Y Long stroke oil sucker for vertical moving beam tower frame |
| 02/20/2008 | CN201025002Y An air pumping controller |
| 02/20/2008 | CN201025001Y Low voltage gas collection system |
| 02/20/2008 | CN201025000Y Suspending arm device of oil sucker |
| 02/20/2008 | CN201024999Y Middle and low voltage gas collection device |
| 02/20/2008 | CN201024942Y Drilling free blind plate device |
| 02/20/2008 | CN201024939Y Testing and unloading device for preventive petroleum pump power illustration |
| 02/20/2008 | CN201024930Y Petroleum pumping nude pole clamper |
| 02/20/2008 | CN201023230Y Balancing device for pumping unit |
| 02/20/2008 | CN101126383A Hydraulic driving gear oil-well pump |
| 02/20/2008 | CN101126314A Foam plug flow diverting acidification technique |
| 02/20/2008 | CN101126313A Double-allocation mode eccentric center water-distributing device |
| 02/20/2008 | CN101126312A Fluctuation petroleum exploitation method |
| 02/20/2008 | CN101126311A Petroleum horizontal well expansion sand control screen device and expansion technique |
| 02/20/2008 | CN101126310A Horizontal well leaching mining method |
| 02/20/2008 | CN101126309A Horizontal fissure fluctuation leaching mining method |
| 02/20/2008 | CN101126308A Direct current rotary- force oil extraction technique |
| 02/19/2008 | USRE40067 Downhole equipment tools and assembly procedures for the drilling, tie-in and completion of vertical cased oil wells connected to liner-equipped multiple drainholes |
| 02/19/2008 | US7332460 alkylxylene moiety in the alkylxylene sulfonate contains a high percentage of the 4-alkyl-1,2-dimethyl benzene isomer and attachment of the alkyl group to the xylene ring at positions higher than the 2-position on the alkyl carbon chain; for enhancing the recovery of oil from a subterranean reservoir |
| 02/19/2008 | US7331397 Gas drive fluid lifting system |
| 02/19/2008 | US7331390 Compositions and methods for plugging and sealing a subterranean formation |
| 02/19/2008 | US7331389 Re-use of recovered treating fluid |
| 02/19/2008 | US7331388 Horizontal single trip system with rotating jetting tool |
| 02/19/2008 | US7331385 Methods of treating a subterranean formation to convert organic matter into producible hydrocarbons |
| 02/19/2008 | CA2597381A1 Apparatus and method for controlling fluid flow |
| 02/19/2008 | CA2497728C Control of particulate flowback in subterranean wells |
| 02/19/2008 | CA2479294C Method for operating a well jet device during cleaning of the downhole area of a formation and device for carrying out said method |
| 02/19/2008 | CA2466223C Method for removing a tool from a well |
| 02/19/2008 | CA2459723C Active controlled bottomhole pressure system and method |
| 02/19/2008 | CA2454227C Torque anchor |
| 02/19/2008 | CA2446525C Method for treating a subterranean formation |
| 02/19/2008 | CA2445296C Apparatus and method for controlling the speed of a pump in a well |
| 02/19/2008 | CA2439336C Auto reversing expanding roller system |
| 02/19/2008 | CA2403060C Methods, apparatus and products useful in the operation of a sucker rod pump during the production of hydrocarbons |
| 02/19/2008 | CA2332885C Encapsulated breakers, compositions and methods of use |
| 02/18/2008 | CA2597880A1 Electrofused proppant, method of manufacture, and method of use |
| 02/17/2008 | CA2597188A1 Friction reduction fluids |
| 02/14/2008 | WO2008019374A1 Method and system for pore pressure prediction |
| 02/14/2008 | WO2008017211A1 A surface motor direct-drive sucker-rod screw pump device |
| 02/14/2008 | WO2008017194A1 A rotating wheel and variable moment pumping unit driven by motor |
| 02/14/2008 | WO2007139450A3 Downhole cyclic pressure pulse generator and method for increasing the permeability of pay reservoir |
| 02/14/2008 | WO2007134598A8 Flow simulation in a well or pipe |
| 02/14/2008 | WO2007082023A3 Zone isolation assembly array for isolating a plurality of fluid zones in a subsurface well |
| 02/14/2008 | US20080035378 Method of drilling a bore hole |
| 02/14/2008 | US20080035352 Method for construction of low thermal expansion and low resistance wire for logging applications |
| 02/14/2008 | US20080035350 Downhole Inflow Control Device with Shut-Off Feature |
| 02/14/2008 | US20080035349 Completion with telescoping perforation & fracturing tool |
| 02/14/2008 | US20080035348 Temperature limited heaters using phase transformation of ferromagnetic material |
| 02/14/2008 | US20080035347 Adjusting alloy compositions for selected properties in temperature limited heaters |
| 02/14/2008 | US20080035346 Methods of producing transportation fuel |
| 02/14/2008 | US20080035342 Non-acid acidizing methods and compositions |