| 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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| 02/26/2013 | CA2750776A1 Frac water blending system |
| 02/26/2013 | CA2720783C Clean fluid systems for partial monolayer fracturing |
| 02/26/2013 | CA2707283C Viscous oil recovery using electric heating and solvent injection |
| 02/26/2013 | CA2698333C Method and system for increasing production of a reservoir using lateral wells |
| 02/24/2013 | CA2787617A1 Enhancer system of the flow pattern of gas wells with liquid load problems |
| 02/21/2013 | WO2013025985A2 Full flow gun system for monobore completions |
| 02/21/2013 | WO2013025924A2 Vertically compactable fluid transfer device |
| 02/21/2013 | WO2013025690A1 Composition and method for recovering heavy oil |
| 02/21/2013 | WO2013025686A1 System, apparatus and method for producing a well |
| 02/21/2013 | WO2013025644A1 Systems and methods for extracting and processing gases from submerged sources |
| 02/21/2013 | WO2013025420A2 Hydrocarbon recovery employing an injection well and a production well having multiple tubing strings with active feedback control |
| 02/21/2013 | WO2013025283A2 Processes for fracturing a well |
| 02/21/2013 | WO2013024147A1 System and method for producing a hydrocarbon product stream from a hydrocarbon well stream, and a hydrocarbon well stream separation tank |
| 02/21/2013 | WO2013023466A1 Tower-type double-chain belt oil pumping machine |
| 02/21/2013 | WO2012158370A4 Tubular cutting with debris filtration |
| 02/21/2013 | WO2012156875A3 Altering a composition at a location accessed through an elongate conduit |
| 02/21/2013 | WO2012121864A3 Check valve assembly for well stimulation operations |
| 02/21/2013 | WO2012098369A3 Subsea connecting apparatus and method |
| 02/21/2013 | WO2012087496A3 An exit assembly with a fluid director for inducing and impeding rotational flow of a fluid |
| 02/21/2013 | WO2011156629A3 Deepwater oil recovery process |
| 02/21/2013 | WO2011106579A3 Wellbore valve, wellbore system, and method of producing reservoir fluids |
| 02/21/2013 | US20130045902 Composition and method for recovering heavy oil |
| 02/21/2013 | US20130045898 Polyester amide foamers |
| 02/21/2013 | US20130043163 Reducing the carbon emissions intensity of a fuel |
| 02/21/2013 | US20130043074 Electromechanical assembly for connecting a series of guns used in the perforation of wells |
| 02/21/2013 | US20130043048 Systems and Methods for Selective Electrical Isolation of Downhole Tools |
| 02/21/2013 | US20130043037 Back pressured hydraulic pump for sucker rod |
| 02/21/2013 | US20130043036 Riser system |
| 02/21/2013 | US20130043035 Method of retrofitting subsea equipment with separation and boosting |
| 02/21/2013 | US20130043034 Power and control pod for a subsea artificial lift system |
| 02/21/2013 | US20130043033 Upgrading hydrocarbon material on offshore platforms |
| 02/21/2013 | US20130043031 Manifold string for selectivity controlling flowing fluid streams of varying velocities in wells from a single main bore |
| 02/21/2013 | US20130043030 Processes for fracturing a well |
| 02/21/2013 | US20130043029 High voltage temperature limited heaters |
| 02/21/2013 | US20130043025 Harvesting resource from variable pay intervals |
| 02/21/2013 | US20130043024 Process for producing viscous mineral oil from underground deposits |
| 02/21/2013 | US20130043023 Pumping system |
| 02/21/2013 | CA2845614A1 System, apparatus and method for producing a well |
| 02/21/2013 | CA2845481A1 Improvements relating to subsea compression |
| 02/21/2013 | CA2845014A1 Hydrocarbon recovery employing an injection well and a production well having multiple tubing strings with active feedback control |
| 02/21/2013 | CA2844842A1 Processes for fracturing a well |
| 02/21/2013 | CA2844390A1 Vertically compactable fluid transfer device |
| 02/21/2013 | CA2808602A1 Tower-type double-chain belt pumping unit |
| 02/20/2013 | EP2559845A2 High flow rate multi array stimulation system |
| 02/20/2013 | EP2559844A2 Method for transporting crude oil from subterranean storage areas |
| 02/20/2013 | EP2559843A2 Multiple shift sliding sleeve |
| 02/20/2013 | EP2558677A1 Sequenced packing element system |
| 02/20/2013 | EP2558545A1 Electrically conductive oil-based drilling fluids |
| 02/20/2013 | CN202746905U Oil pouring and maintaining device for beam hanger of pumping unit |
| 02/20/2013 | CN202746897U Centralized grease injection device of pumping unit |
| 02/20/2013 | CN202746560U Novel relief valve of pumping unit reducer |
| 02/20/2013 | CN202746559U Anti-theft screwed plug of oil discharging hole in speed changing box of oil pumping machine |
| 02/20/2013 | CN202745861U Compensation-type pressure-measuring drilling water-gas separation water discharging device |
| 02/20/2013 | CN202745856U Oil well metering device |
| 02/20/2013 | CN202745852U Gas-water separator of elliptical tank |
| 02/20/2013 | CN202745851U Natural gas and drilling gas recycling equipment |
| 02/20/2013 | CN202745850U Pipe type oil-gas separation device |
| 02/20/2013 | CN202745849U Underground hydraulic-electric seam making device |
| 02/20/2013 | CN202745848U Hydraulic type fracturing sliding sleeve opening and closing tool |
| 02/20/2013 | CN202745847U Controllable hydraulic ejector |
| 02/20/2013 | CN202745846U Perforating, fracturing and sand washing integrated string for coiled tubing |
| 02/20/2013 | CN202745845U Multi-stage sliding sleeve fracturing device |
| 02/20/2013 | CN202745844U Wellhead injector for oil-gas field development |
| 02/20/2013 | CN202745843U Automatically controlled agent injection device for cluster gas wells |
| 02/20/2013 | CN202745842U Ground device enabling viscosity reducer to be reused |
| 02/20/2013 | CN202745841U Concentric water distributor of water injection well |
| 02/20/2013 | CN202745840U High-efficiency injection pipe string for large-inclination well |
| 02/20/2013 | CN202745839U Collar locator |
| 02/20/2013 | CN202745838U Co-well water-injection and water-extraction process tubular column |
| 02/20/2013 | CN202745837U Natural energy circular gas-lift well completion tubular column |
| 02/20/2013 | CN202745836U Layering oil production rotating production device |
| 02/20/2013 | CN202745835U Anti-slipping single rubber sleeve underground throttling device |
| 02/20/2013 | CN202745834U Preset downhole throttler without rope releasing |
| 02/20/2013 | CN202745833U Special priming device for continuous oil pipe conveying perforation |
| 02/20/2013 | CN202745832U Perforation device with underground anti-explosion and anti-leakage effects |
| 02/20/2013 | CN202745831U Pipe column of sand control screen pipe for oil well |
| 02/20/2013 | CN202745830U Composite balanced dual-horsehead oil pumping unit |
| 02/20/2013 | CN202745829U Energy-saving pumping unit with radial load and torque separation effects |
| 02/20/2013 | CN202745828U Twin-well pumping machine without walking beam |
| 02/20/2013 | CN202745827U Wide pivot angle pumping unit |
| 02/20/2013 | CN202745826U Hydraulic spring energy-storage type pumping unit |
| 02/20/2013 | CN202745825U Decompression air extracting device for oil well casing |
| 02/20/2013 | CN202745824U Self-control type oil well casing gas recovery device |
| 02/20/2013 | CN202745823U Device capable of continuously throwing and catching plunger for liquid drainage and gas recovery |
| 02/20/2013 | CN202745822U Anti-top-impact tool string for underground wireline operation in highly-deviated well |
| 02/20/2013 | CN102939354A Surfactant-less alkaline-polymer formulations for recovering reactive crude oil |
| 02/20/2013 | CN102937017A Flushing protection gas anchor |
| 02/20/2013 | CN102937016A Method for enhancing recovery ratio of coal-bed gas by injecting hot carbon dioxide into coal bed |
| 02/20/2013 | CN102937015A Oil pumping unit |
| 02/20/2013 | CN102937014A Oil pumping pipe column |
| 02/20/2013 | CN102937013A Derrick type long-stroke hydraulic pumping unit |
| 02/20/2013 | CN102936493A Hydrogenation thermochemical yield increase solution composition for low-permeability gas well |
| 02/20/2013 | CN102936492A Thermochemical yield increase solution composition applicable to low-permeability condensate well |
| 02/20/2013 | CN102305404B Re-combustion injector of combustor of re-combustion supercritical pressure gas-liquid phase fuel generator |
| 02/20/2013 | CN102086760B Method for mining coalbed methane through regional underground high-pressure hydraulic drilling and pressure relief |
| 02/20/2013 | CN102080525B High-pressure gas injection hole-drilling pressure-releasing outburst prevention method |
| 02/20/2013 | CN101892823B Method for throwing and fishing out underground restrictor from gas well without utilizing steel wires |
| 02/20/2013 | CN101775971B Oil-field largest swept volume chemical-flooding oil production method |
| 02/20/2013 | CN101581211B Method for comprehensively extinguishing underground gasification furnace |
| 02/19/2013 | US8377855 Methods and compositions for treating subterranean zones |