| 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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| 05/04/2011 | CN102042014A Multistage-cylinder near well-bore zone shearing simulation device with three layers of compacted sand bodies |
| 05/04/2011 | CN102042013A Near wellbore area cutting simulation device for combined cylinder body with three layers of compacted sand bodies |
| 05/04/2011 | CN102042012A Multistage-cylinder near well-bore zone shearing simulation device |
| 05/04/2011 | CN102041988A Multistage drive ore dissolution method used for mining salt mines |
| 05/04/2011 | CN102041987A Method for water control and oil production increasing acidification of oil well at water content increasing stage of low-pressure heterogeneous reservoir |
| 05/04/2011 | CN102041986A Special deep penetrating charge |
| 05/04/2011 | CN102041985A Multi-parameter real-condition monitoring method for well completion of underground perforator |
| 05/04/2011 | CN102041984A Combined type sieve tube |
| 05/04/2011 | CN102041983A Sand control screen assembly with flow control capability |
| 05/04/2011 | CN102041982A Straight pipe type oil well balancer |
| 05/04/2011 | CN102041981A Sheathed oil well balancer |
| 05/04/2011 | CN102041980A Non-impact hydraulic oil pumping device capable of realizing full energy recovery |
| 05/04/2011 | CN102041979A Torque-balance beam pumping unit |
| 05/04/2011 | CN102041978A Rod hiding type oil pumping unit |
| 05/04/2011 | CN102041977A Torque filtering device of pumping unit |
| 05/04/2011 | CN102041970A Protection device for separate stratum fracturing of continuous oil pipe |
| 05/04/2011 | CN101330955B A separator tank for separation of fluid comprising water, oil and gas, use of such a tank, and a method for separating a fluid including water, oil, and gas |
| 05/04/2011 | CN101078338B Automatic intermittent mine mouth oil pumping method and device |
| 05/03/2011 | US7935662 System, method, and apparatus for injection well clean-up operations |
| 05/03/2011 | US7934563 Inverted drainholes and the method for producing from inverted drainholes |
| 05/03/2011 | US7934560 Free standing riser system and method of installing same |
| 05/03/2011 | US7934558 System and method for dynamically adjusting the center of gravity of a perforating apparatus |
| 05/03/2011 | US7934556 Method and system for treating a subterranean formation using diversion |
| 05/03/2011 | US7934555 Multiple zone isolation method |
| 05/03/2011 | US7934554 Methods and compositions comprising a dual oil/water-swellable particle |
| 05/03/2011 | US7934553 Method for controlling placement and flow at multiple gravel pack zones in a wellbore |
| 05/03/2011 | US7934551 Methods to properly use saline water for oil reservoirs injection operations |
| 05/03/2011 | US7934550 Wellhead assembly and method for an injection tubing string |
| 05/03/2011 | US7934549 Passive heating assisted recovery methods |
| 05/03/2011 | US7934547 Apparatus and methods to control fluid flow in a downhole tool |
| 05/03/2011 | US7934544 Method and apparatus for on-site nitrate production for a water processing system |
| 05/03/2011 | CA2684600C Producer well plugging for in situ combustion processes |
| 05/03/2011 | CA2512700C Apparatus and methods for forming a lateral wellbore |
| 05/03/2011 | CA2462466C Systems and methods for controlling flow control devices |
| 05/03/2011 | CA2415413C Soft shift system and method |
| 04/30/2011 | CA2685298A1 Breakers for gelled fracturing fluids |
| 04/28/2011 | WO2011050094A2 Steam distribution and conditioning assembly for enhanced oil recovery of viscous oil |
| 04/28/2011 | WO2011050092A2 System, method, and computer readable medium for calculating well flow rates produced with electrical submersible pumps |
| 04/28/2011 | WO2011050088A1 Tunable polymeric surfactants for mobilizing oil into water |
| 04/28/2011 | WO2011050083A2 Steam distribution apparatus and method for enhanced oil recovery of viscous oil |
| 04/28/2011 | WO2011049941A2 Downhole release joint with radially expandable members |
| 04/28/2011 | WO2011049929A2 High performance guar for hydraulic fracturing and other applications |
| 04/28/2011 | WO2011049923A2 Method of reducing the viscosity of hydrocarbons |
| 04/28/2011 | WO2011049861A2 Integrated enhanced oil recovery process |
| 04/28/2011 | WO2011049858A2 Integrated enhanced oil recovery process |
| 04/28/2011 | WO2011049678A2 Dissolvable material application in perforating |
| 04/28/2011 | WO2011049675A1 System and method for producing geothermal energy |
| 04/28/2011 | WO2011048375A2 Bottom hole assembly for subterranean operations |
| 04/28/2011 | WO2011047478A1 Stabilization and remote recovery of acid gas fractions from sour wellsite gas |
| 04/28/2011 | WO2011014376A3 Multi-zone screen isolation system with selective control |
| 04/28/2011 | WO2011011612A3 Wired conduit segment and method of making same |
| 04/28/2011 | WO2011011608A3 Apparatus and method for coupling conduit segments |
| 04/28/2011 | WO2011008929A3 Apparatus and method for controlling flow of solids into wellbores using filter media containing an array of three-dimensional elements |
| 04/28/2011 | WO2011008908A3 Expansion system for expandable tubulars |
| 04/28/2011 | WO2011008835A3 Downhole intervention |
| 04/28/2011 | WO2011008834A3 Production riser |
| 04/28/2011 | WO2011006173A3 Non-collapsing built in place adjustable swage |
| 04/28/2011 | WO2011005666A3 Methods for treating hydrocarbon-bearing formations with fluorinated acid compositions |
| 04/28/2011 | WO2011001139A3 Improved methods and systems for integrated material processing |
| 04/28/2011 | WO2010140033A3 Use of encapsulated chemical during fracturing |
| 04/28/2011 | WO2010139932A3 Method and system for configuring crude oil displacement system |
| 04/28/2011 | WO2010009397A4 Adapter for shaper charge casing |
| 04/28/2011 | WO2009077866A3 Method of removing carbon dioxide emissions from in-situ recovery of bitumen and heavy oil |
| 04/28/2011 | WO2009056992A3 Reservoir fracture simulation |
| 04/28/2011 | US20110094753 Downhole release joint with radially expandable members |
| 04/28/2011 | US20110094751 Arrangement Used In Oil Field Wells For Lifting Hydrocarbons |
| 04/28/2011 | US20110094750 Systems and methods for producing oil and/or gas |
| 04/28/2011 | US20110094748 Pull-head release mechanism for bend stiffener connector |
| 04/28/2011 | US20110094746 Swellable Spacer Fluids and Associated Methods |
| 04/28/2011 | US20110094745 Downhole perforation tool |
| 04/28/2011 | US20110094744 System and Method for Dynamically Adjusting the Center of Gravity of a Perforating Apparatus |
| 04/28/2011 | US20110094743 System and Method for Dynamically Adjusting the Center of Gravity of a Perforating Apparatus |
| 04/28/2011 | US20110094740 Method of treating subterranean formations with porous ceramic particulate materials |
| 04/28/2011 | US20110094739 Oil recovery process |
| 04/28/2011 | US20110094738 Apparatus for Upgrading Crude Oil and System Incorporating Same |
| 04/28/2011 | US20110094737 Shear-activated viscoelastic surfactant fluid and method |
| 04/28/2011 | US20110094736 Device for extracting at least one type of gas contained in a drilling mud, an analysis arrangement and a related extraction method |
| 04/28/2011 | US20110094735 Completion Method for Horizontal Wells In In Situ Combustion |
| 04/28/2011 | US20110094734 Downhole tool |
| 04/28/2011 | US20110094732 Vibrating system and method for use in sand control and formation stimulation in oil and gas recovery operations |
| 04/28/2011 | US20110094730 Bottom Tag for Progressing Cavity Pump Rotor with Coiled Tubing Access |
| 04/28/2011 | US20110094728 Steam distribution and conditioning assembly for enhanced oil recovery of viscous oil |
| 04/28/2011 | US20110094727 Steam distribution apparatus and method for enhanced oil recovery of viscous oil |
| 04/28/2011 | US20110094406 Dissolvable Material Application in Perforating |
| 04/28/2011 | CA2778000A1 System, method, and computer readable medium for calculating well flow rates produced with electrical submersible pumps |
| 04/28/2011 | CA2777756A1 Steam distribution and conditioning assembly for enhanced oil recovery of viscous oil |
| 04/28/2011 | CA2777755A1 Tunable polymeric surfactants for mobilizing oil into water |
| 04/28/2011 | CA2777750A1 Steam distribution apparatus and method for enhanced oil recovery of viscous oil |
| 04/28/2011 | CA2777634A1 Stabilization and remote recovery of acid gas fractions from sour wellsite gas |
| 04/28/2011 | CA2777429A1 Bottom hole assembly for subterranean operations |
| 04/28/2011 | CA2775964A1 Method of reducing the viscosity of hydrocarbons |
| 04/28/2011 | CA2773845A1 Integrated enhanced oil recovery process |
| 04/28/2011 | CA2773718A1 Integrated enhanced oil recovery process |
| 04/28/2011 | CA2713619A1 A completion method for horizontal wells in in situ combustion |
| 04/27/2011 | EP2314830A1 Tractor communications/control and select fire perforating switch |
| 04/27/2011 | EP2314373A1 Storing device for stored substance and method for storing stored substance |
| 04/27/2011 | EP2313609A1 Method and system for solution mining |
| 04/27/2011 | EP2313608A2 Liquid rod pump |
| 04/27/2011 | EP2313607A1 Method and apparatus for configuring oil and/or gas producing system |
| 04/27/2011 | CN201811283U Underground electric control igniter |