| 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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| 01/13/2011 | US20110005760 System and method for low damage fracturing |
| 01/13/2011 | US20110005759 Fracturing system and method |
| 01/13/2011 | US20110005758 Method and composition for curing lost circulation |
| 01/13/2011 | US20110005756 Use of zeta potential modifiers to decrease the residual oil saturation |
| 01/13/2011 | US20110005755 Downhole Casing Cutting Tool |
| 01/13/2011 | US20110005754 Methods of producing flow-through passages in casing, and methods of using such casing |
| 01/13/2011 | US20110005753 Methods of Fluid-Controlled Geometry Stimulation |
| 01/13/2011 | US20110005752 Water Sensitive Porous Medium to Control Downhole Water Production and Method Therefor |
| 01/13/2011 | US20110005751 Production of steam and its application to enhanced oil recovery |
| 01/13/2011 | US20110005750 Oil sand production without co2 emmission |
| 01/13/2011 | US20110005749 Water processing systems and methods |
| 01/13/2011 | US20110005748 Recovering heavy oil through the use of microwave heating in horizontal wells |
| 01/13/2011 | US20110005747 Method and system for enhanced oil recovery |
| 01/13/2011 | US20110005744 Flow control system having an isolation device for preventing gas interference during downhole liquid removal operations |
| 01/13/2011 | US20110005452 Buoyancy device and a method for stabilizing and controlling the lowering or raising of a structure between the surface and the bed of the sea |
| 01/13/2011 | CA2767568A1 Flow restrictor device |
| 01/13/2011 | CA2767236A1 Dispersion compositions with nonionic surfactants for use in petroleum recovery |
| 01/13/2011 | CA2767197A1 Downhole device |
| 01/13/2011 | CA2767195A1 Well completion method |
| 01/13/2011 | CA2765530A1 Perforating guns with reduced internal volume |
| 01/13/2011 | CA2765401A1 Method for providing a temporary barrier in a flow pathway |
| 01/12/2011 | EP2273066A1 Apparatus and method for recovering fluids from a well and/or injecting fluids into a well |
| 01/12/2011 | EP2273065A2 Downhole tubular expansion tool and method |
| 01/12/2011 | EP2273064A1 Procedures and equipment for profiling and jointing of pipes |
| 01/12/2011 | EP2271823A2 Methods of treating a hydrocarbon containing formation |
| 01/12/2011 | EP2271822A2 System and method for recompletion of old wells |
| 01/12/2011 | EP2271821A1 A switching device for, and a method of switching, a downhole tool |
| 01/12/2011 | EP2271820A1 Flow controller device |
| 01/12/2011 | EP2181247B1 Stealth orifice |
| 01/12/2011 | CN201708763U Motor controller of oilfield pumping unit |
| 01/12/2011 | CN201706470U Vehicle-mounted steam injection boiler |
| 01/12/2011 | CN201705613U Gas well water discharge and gas extraction plunger piston |
| 01/12/2011 | CN201705330U Mobile oil well multi-phase flow meter |
| 01/12/2011 | CN201705325U Directional well fine zonal water injection flow testing and dispatching device |
| 01/12/2011 | CN201705321U Electric heating oil shale in-situ exploitation analog meter |
| 01/12/2011 | CN201705320U Injection multielement thermal fluid oil extraction three-dimensional simulation tester |
| 01/12/2011 | CN201705319U Skid-mounted closed dosing device |
| 01/12/2011 | CN201705318U Double-pipe water-blending flange device |
| 01/12/2011 | CN201705317U Hydraulic cylinder fixing flange |
| 01/12/2011 | CN201705316U Gas production device supercharged by two stages of ejectors for gas field |
| 01/12/2011 | CN201705315U Perforating gun lifting device capable of preventing blowout |
| 01/12/2011 | CN201705314U Device for preventing thread alternating of casing |
| 01/12/2011 | CN201705313U High-speed self-cleaning fine seam filtering mechanism |
| 01/12/2011 | CN201705312U Detachable skid-mounted pressurization integrating device |
| 01/12/2011 | CN201705311U Energy-saving dragging device of double-power double-rotating-speed walking beam type oil sucking machine |
| 01/12/2011 | CN201705310U Operation safety protection band for mule head of oil pumping machine |
| 01/12/2011 | CN201705309U Mechanical water-blocking oil-producing pipe column |
| 01/12/2011 | CN201705308U Oil pumping unit with stroke regulation |
| 01/12/2011 | CN201705307U Walking-beam pumping unit capable of changing distance through diameter adjustment |
| 01/12/2011 | CN201705306U Front oil production truck |
| 01/12/2011 | CN201705305U Asymmetrical operating beamless coalbed methane drainage apparatus |
| 01/12/2011 | CN201705304U Mechanical pumping unit pulley automatic tension device |
| 01/12/2011 | CN201705303U Oil extractor crank pin fixator |
| 01/12/2011 | CN201705302U Oil extractor with planetary drive reversing rack |
| 01/12/2011 | CN201705301U Deep well oil production outer runner positive and negative circulation free shot jet pump oil production device |
| 01/12/2011 | CN201705287U Anti-backflow lubricating nipple of pumping well mouth |
| 01/12/2011 | CN201705276U Well completion and flow string of horizontal well |
| 01/12/2011 | CN201705266U Coalbed gas wellhead device for exhausting coal water and gas and injecting water |
| 01/12/2011 | CN201705260U Hydraulic jet deplugging device |
| 01/12/2011 | CN201705218U Tubing string with thick oil underground returning thermal production blockage technique |
| 01/12/2011 | CN201705217U Torque transfer expansion device |
| 01/12/2011 | CN201701823U Oil-gas separator |
| 01/12/2011 | CN1995694B Oil displacement method by injecting indigenous microorganism into sewage |
| 01/12/2011 | CN101946060A Large inside diameter completion with position indication |
| 01/12/2011 | CN101943057A Power complementing system for oil field well head oil pumping unit |
| 01/12/2011 | CN101942996A Underground corroding and sampling device and method |
| 01/12/2011 | CN101942995A Method for evaluating watered-out degree of ultralow-permeability water-drive reservoir sandstone oil layer |
| 01/12/2011 | CN101942986A Abrasive jet injection multiple fracturing device |
| 01/12/2011 | CN101942985A Hollow water distributor |
| 01/12/2011 | CN101942984A Fracture-cave type carbonate reservoir waterflooding oil replacement recovery method |
| 01/12/2011 | CN101942983A Process for performing well completion by utilizing biological completion fluid |
| 01/12/2011 | CN101942982A Device for jetting conduit into directly-drilled surface layer of marine deep-water drilling well |
| 01/12/2011 | CN101942971A Elastic expansion device |
| 01/12/2011 | CN101672272B Gas and sand anchor device of electrical submersible pump |
| 01/11/2011 | US7867953 Methods of using drilling fluids containing biodegradable organophilic clay |
| 01/11/2011 | US7867951 used to alter fluid rheology and impart both viscous and elastic properties to the treated fluids; well bore treatment fluids |
| 01/11/2011 | US7866708 Joining tubular members |
| 01/11/2011 | US7866400 Phase-controlled well flow control and associated methods |
| 01/11/2011 | US7866398 Umbilical termination assemblies |
| 01/11/2011 | US7866395 Hydraulic fracture initiation and propagation control in unconsolidated and weakly cemented sediments |
| 01/11/2011 | US7866391 Shoe for wellbore lining tubing |
| 01/11/2011 | US7866389 separating air into nitrogen-rich and oxygen-rich gases, oxidizing hydrocarbon fuel with oxygen-rich gas to produce steam and a CO2-rich gas, injecting steam through injection well into reservoir to heat hydrocarbons, purging injection well with nitrogen-rich gas, injecting CO2-rich gas into reservoir |
| 01/11/2011 | US7866388 High temperature methods for forming oxidizer fuel |
| 01/11/2011 | US7866387 Packer variable volume excluder and sampling method therefor |
| 01/11/2011 | US7866386 production of hydrocarbons, hydrogen, and/or other products from various subsurface formations such as hydrocarbon containing formations through use of oxidizing fluids and heat |
| 01/11/2011 | US7866385 Power systems utilizing the heat of produced formation fluid |
| 01/11/2011 | US7866383 Sand control screen assembly and method for use of same |
| 01/11/2011 | US7866381 Arrangement used in oil field wells for lifting hydrocarbons |
| 01/11/2011 | CA2629525C Flush mounted tubular patch |
| 01/11/2011 | CA2594626C Use of a heavy petroleum fraction as a drive fluid in the recovery of hydrocarbons from a subterranean formation |
| 01/11/2011 | CA2593629C Fixed-point packoff element with primary seal test capability |
| 01/10/2011 | CA2707209A1 Methods for maximum shock stimulation with minimum volume, minimum rate and controlled fracture growth |
| 01/08/2011 | CA2709152A1 Recycling and treatment process for produced and used flowback fracturing water |
| 01/07/2011 | CA2671255A1 Production of steam and its application to enhanced oil recovery |
| 01/06/2011 | WO2011002682A2 Remotely controllable manifold |
| 01/06/2011 | WO2011002615A2 Flow control device with one or more retrievable elements |
| 01/06/2011 | WO2011002557A1 System and method for enhancing the production of hydrocarbons |
| 01/06/2011 | WO2011002556A1 System and method for producing coal bed methane |
| 01/06/2011 | WO2011001792A1 Method and equipment for dissociation of methane hydrate |
| 01/06/2011 | WO2011001408A1 Method for extracting hydrocarbons by in-situ electromagnetic heating of an underground formation |