| 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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| 11/12/2013 | CA2731840C System and method for blending a dry material with a fluid in a closed environment |
| 11/12/2013 | CA2723447C Method and apparatus for "in-situ" conveying of bitumen or very heavy oil |
| 11/12/2013 | CA2700958C Pulse stimulation tool and method of use |
| 11/12/2013 | CA2674115C Polysaccharide treatment fluid and method of treating a subterranean formation |
| 11/12/2013 | CA2618056C Pipe expander |
| 11/12/2013 | CA2559008C Duplex cone expander for expanding a tubular upward and downward from preexpanded section |
| 11/08/2013 | CA2815410A1 Steam anti-coning/cresting technology (sact) remediation process |
| 11/07/2013 | WO2013166392A1 Method and apparatus to control water migration into electrical submersible pump motors |
| 11/07/2013 | WO2013165783A1 Flow sensing apparatus and methods for use in oil and gas wells |
| 11/07/2013 | WO2013165780A1 Pnc tools used to locate proppant near a borehole |
| 11/07/2013 | WO2013165712A1 Methods for containment and improved recovery in heated hydrocarbon containing formations by optimal placement of fractures and production wells |
| 11/07/2013 | WO2013165668A1 Compliant sand screen |
| 11/07/2013 | WO2013165539A1 Composite liners for perforators |
| 11/07/2013 | WO2013165434A1 Explosive device booster assembly and method of use |
| 11/07/2013 | WO2013048370A9 Wellbore flow control devices comprising coupled flow regulating assemblies and methods for use thereof |
| 11/07/2013 | WO2012177926A3 Liner top packer for liner drilling |
| 11/07/2013 | WO2002085821A3 In situ recovery from a relatively permeable formation containing heavy hydrocarbons |
| 11/07/2013 | US20130293387 Well Fluid Leak Detection and Response Systems |
| 11/07/2013 | US20130292174 Composite liners for perforators |
| 11/07/2013 | US20130292128 Subsea Production System Having Arctic Production Tower |
| 11/07/2013 | US20130292126 Methods Of Using Enhanced Wellbore Electrical Cables |
| 11/07/2013 | US20130292124 Hydraulic fracturing |
| 11/07/2013 | US20130292122 Polymer Dissolution Equipment Suitable For Large Fracturing Operations |
| 11/07/2013 | US20130292121 Surfactant formulations for foam flooding |
| 11/07/2013 | US20130292118 Particulates Having Hydrophobic and Oleophobic Surfaces and Methods Relating Thereto |
| 11/07/2013 | US20130292117 Compliant sand screen |
| 11/07/2013 | US20130292116 Methods for Controlling Formation Fines Migration |
| 11/07/2013 | US20130292115 Steam generator blowdown management |
| 11/07/2013 | US20130292114 Methods For Containment and Improved Recovery in Heated Hydrocarbon Containing Formations By Optimal Placement of Fractures and Production Wells |
| 11/07/2013 | CA2815144A1 Satellite steam-assisted gravity drainage with oxygen (sagdox) system for remote recovery of hydrocarbons |
| 11/07/2013 | CA2814364A1 Fluid housing for spray gun |
| 11/06/2013 | EP2660420A1 Improved equipment adapted for dissolution of polymer in fracturing operations |
| 11/06/2013 | EP2659140A2 Short length pump having brine resistant seal and rotating wrist pin and related methods |
| 11/06/2013 | EP2659090A1 Methods for drilling and stimulating subterranean formations for recovering hydrocarbon and natural gas resources |
| 11/06/2013 | EP2659089A2 Method and apparatus for controlling fluid flow into a wellbore |
| 11/06/2013 | EP2658951A1 Upstream-downstream integrated process for the upgrading of a heavy crude oil with capture of co2 and relative plant for the embodiment thereof |
| 11/06/2013 | CN203276005U Digitalized automatic dispensing control system of natural gas well foam discharging rod |
| 11/06/2013 | CN203272551U Pumping unit electric brake mechanism |
| 11/06/2013 | CN203272541U Seat shaft structure of pumping unit brake middle seat |
| 11/06/2013 | CN203271709U Spiral-flow type desander |
| 11/06/2013 | CN203271708U Skid-mounted oil-gas separation metering tester |
| 11/06/2013 | CN203271707U Oil well multistage filter |
| 11/06/2013 | CN203271706U Gas source purification device for oil field |
| 11/06/2013 | CN203271705U Oil-gas separation metering device |
| 11/06/2013 | CN203271704U Oil and gas separator capable of removing sands |
| 11/06/2013 | CN203271703U Formation fracturing sandblast with high wear resistance of anti-backflow of oil well |
| 11/06/2013 | CN203271702U Fracturing pipe in down hole hydraulic fracturing high-pressure seal hole |
| 11/06/2013 | CN203271701U Tubular column pressing no oil layer during well washing |
| 11/06/2013 | CN203271700U Oil exploitation gas injection branching heating device |
| 11/06/2013 | CN203271699U Thickened oil exploiting device using geotherm circulation for heat preservation |
| 11/06/2013 | CN203271698U Pump powered strong magnetic cyclone self-power-generating hot washing truck |
| 11/06/2013 | CN203271697U Hollow water distribution flow regulating device |
| 11/06/2013 | CN203271696U Hollow water injection device |
| 11/06/2013 | CN203271695U Multifunctional well head |
| 11/06/2013 | CN203271694U Embedded integral type waterpower abrasive blasting perforator |
| 11/06/2013 | CN203271693U Orientation and perforation device for second well descending of cable conveying |
| 11/06/2013 | CN203271692U Novel seal type petroleum filtering device |
| 11/06/2013 | CN203271691U Novel petroleum filtering screen pipe |
| 11/06/2013 | CN203271690U Novel step type filtering oil pipe |
| 11/06/2013 | CN203271689U Double-barreled type petroleum screen pipe |
| 11/06/2013 | CN203271688U Top conversion tool for sand prevention |
| 11/06/2013 | CN203271687U Filling conversion tool |
| 11/06/2013 | CN203271686U Single-motor double-sided driving energy-saving chain type oil pumping unit |
| 11/06/2013 | CN203271685U Gas well split plunger automatically identifying liquid level |
| 11/06/2013 | CN203271684U Movable crank of oil pumping unit crank shaft block |
| 11/06/2013 | CN203271683U Double-tower belt type self-balancing pumping unit |
| 11/06/2013 | CN203271682U Oil production string for oil wells with severe sand production |
| 11/06/2013 | CN203271676U Magnetic rotation jet flow block removing and lifting device |
| 11/06/2013 | CN203271672U Automatic oil well vent valve and gas purification device |
| 11/06/2013 | CN203271657U Tangential swirl annulus fracturing wellhead device |
| 11/06/2013 | CN103384751A Screen, method of expanding a screen and method of conforming a screen to a borehole |
| 11/06/2013 | CN103384647A Chemical oxidation or electromagnetic treatment in SAGD operations |
| 11/06/2013 | CN103382835A Water exploration and plugging technology by adopting intelligent switches |
| 11/06/2013 | CN103382834A Separated-layer pressure measurement technology by adopting intelligent switches |
| 11/06/2013 | CN103381339A Improved polymer dissolution equipment suitable for large fracturing operations |
| 11/06/2013 | CN102703045B Multi-slug composite pressure decreasing and injection increasing agent for ultra-low permeability oil field |
| 11/06/2013 | CN102643635B Stratum water-injection augmented injection agent of oil field |
| 11/06/2013 | CN102504790B Method for reversing gas humidity on surface of rock core by using cationic fluorocarbon surfactant |
| 11/06/2013 | CN102465692B Method for obtaining fuel air region shape in real time in coal underground gasification process |
| 11/06/2013 | CN102337895B Method and device for exploiting sea natural gas hydrate |
| 11/06/2013 | CN102322245B Gas hydrate exploitation device |
| 11/06/2013 | CN102220854B Novel vertical energy-saving oil pumping unit |
| 11/06/2013 | CN102212349B Micro-coil water plugging agent for high-water-content low-oil-production well and injection method thereof |
| 11/06/2013 | CN102168545B Coiled tubing supercritical CO2 jet fracturing method |
| 11/06/2013 | CN102124184B Producing gaseous hydrocarbons from hydrate capped reservoirs |
| 11/06/2013 | CN102105650B Apparatus and method for generating power downhole |
| 11/06/2013 | CN102071915B Annular space continuous nitrogen injection auxiliary heat insulation method for offshore thermal recovery |
| 11/06/2013 | CN101892826B Gas and electric heating assisted gravity oil drainage technology |
| 11/06/2013 | CN101876241B Method for improving water drive recovery rate of thick positive rhythm reservoir |
| 11/06/2013 | CN101861444B Systems and methods for producing oil and/or gas |
| 11/06/2013 | CN101775970B 抽油机 Pumping |
| 11/06/2013 | CN101717626B Application of methylnaphthalene in lowering viscosity of thickened oil |
| 11/06/2013 | CN101603411B Drilling rig and drilling method |
| 11/05/2013 | US8576090 Apparatus and methods for controlling and communicating with downwhole devices |
| 11/05/2013 | US8573310 Gas lift apparatus and method for producing a well |
| 11/05/2013 | US8573309 Liquid rod pump and method |
| 11/05/2013 | US8573307 High pressure sleeve for dual bore HP riser |
| 11/05/2013 | US8573306 Apparatus and method for recovering fluids from a well and/or injecting fluids into a well |
| 11/05/2013 | US8573303 Treatment for recycling fracture water—gas and oil recovery in shale deposits |
| 11/05/2013 | US8573302 Surfactants and friction reducing polymers for the reduction of water blocks and gas condensates and associated methods |