Patents
Sitemap › E21 - Earth or rock drilling; Mining › E21B - Earth or rock drilling; Obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells › E21B 43 - Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
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)
12/2012
12/20/2012WO2012173725A1 Valving system and method of injecting chemicals
12/20/2012WO2012173716A2 Air-freightable containment cap for containing a subsea well
12/20/2012WO2012171792A1 Immersion pump and method for assembling an immersion pump
12/20/2012WO2012145090A3 Expandable liner hanger with helically shaped slips
12/20/2012WO2012125250A3 Valving system, method of adjusting a valve and method of fracing a wellbore
12/20/2012WO2012051168A3 Subsea autonomous dispersant injection system and methods
12/20/2012WO2011131867A3 Integrated process for the treatment and gasification of bituminous feedstocks by chemical looping combustion
12/20/2012US20120319409 Retractable power turbine and method thereof
12/20/2012US20120318533 CO2 Storage In Organic-Rich Rock Formation With Hydrocarbon Recovery
12/20/2012US20120318524 Plunger lift slug controller
12/20/2012US20120318523 Control valve assembly
12/20/2012US20120318518 Subsea wellhead assembly
12/20/2012US20120318517 Connecting device for kill/choke lines between a riser and a floating drilling vessel
12/20/2012US20120318516 Subsea connector with a latching assembly
12/20/2012US20120318515 Method of inhibiting or controlling release of well treatment agent
12/20/2012US20120318514 Methods of treating a subterranean formation containing hydrocarbons
12/20/2012US20120318512 Thermally assisted gravity drainage (tagd)
12/20/2012US20120318510 Methods of generating magnetic particles in a subterranean environment
12/20/2012US20120318508 Shock Load Mitigation in a Downhole Perforation Tool Assembly
12/20/2012US20120318507 Hydrocarbon well and technique for perforating casing toe
12/20/2012US20120318505 Method and system for segmental flow control in oil-gas well
12/20/2012US20120318504 In situ extraction of hydrocarbons from hydrocarbon-containing materials
12/20/2012US20120318502 Water detection and 3-phase fraction measurement systems
12/20/2012US20120318499 Methods for increasing oil production
12/20/2012US20120318498 Electromagnetic Heat Treatment Providing Enhanced Oil Recovery
12/20/2012US20120318495 Subterranean Tool With Sealed Electronic Passage Across Multiple Sections
12/20/2012CA2839415A1 Proppants for removal of contaminants from fluid streams and methods of using same
12/20/2012CA2838564A1 Heterogeneous proppant placement in a fracture with removable extrametrical material fill
12/20/2012CA2838439A1 Electromagnetic heat treatment providing enhanced oil recovery
12/20/2012CA2837881A1 Apparatus for the sublimation or pyrolysis of hydrocarbons using rf energy
12/20/2012CA2837692A1 Air-freightable containment cap for containing a subsea well
12/20/2012CA2835884A1 Additives for improving hydrocarbon recovery
12/20/2012CA2835872A1 Additives for improving hydrocarbon recovery
12/19/2012EP2535502A1 Systems and methods for improved positioning of pads
12/19/2012EP2534336A2 Improvements in hydrocarbon recovery
12/19/2012EP2534335A1 Low salinity reservoir environment
12/19/2012EP2534334A1 Hydrocarbon recovery enhancement methods using low salinity carbonated brines and treatment fluids
12/19/2012EP2534333A1 Method and system for predicting the effect of microbes injected into an oil-bearing reservoir
12/19/2012EP2534332A2 System and method for ultrasonically treating liquids in wells and corresponding use of said system
12/19/2012EP2534331A1 Injection or other system with anti-thermal lockdown mechanism and related method
12/19/2012CN202617054U Speed-regulation autodyne phase-modulation intelligent controller used in oil pumping unit
12/19/2012CN202612485U Shunting bevel gear reducer
12/19/2012CN202612451U Pumping unit brake locking device
12/19/2012CN202612444U Linkage brake lock for pumping unit
12/19/2012CN202611682U Oil well yield single-well separate generation device
12/19/2012CN202611675U Equal dryness distribution device
12/19/2012CN202611674U Supercritical water oxidation fluid injection-production system with nitrogen as protective film
12/19/2012CN202611673U Steam pressure reducing and equal-dryness distribution device
12/19/2012CN202611672U High-water-bearing layer thickened oil dilution oil production pipe column
12/19/2012CN202611671U PVC screen pipe for underground well
12/19/2012CN202611670U Oil pumping unit used stopping alarming device
12/19/2012CN202611669U Well falling-resistant device for puller
12/19/2012CN202611668U Emergency oil well shut linkage control means of well control device
12/19/2012CN202611667U Walking beam type electric manual adjustment balanced pumping unit
12/19/2012CN202611662U Electrical heating thick oil nipple for underground turbogenerator
12/19/2012CN202611644U Water injection well completion string
12/19/2012CN102834587A Leak detection in circulated fluid systems for heating subsurface formations
12/19/2012CN102830630A Coal bed gas multilateral well recovery control stimulation device
12/19/2012CN102828736A Real-time adjustable and controllable hanging type underground oil and water separating system
12/19/2012CN102828735A Method for improving shale gas well recovery ratio on basis of air knocking
12/19/2012CN102828734A Offshore oilfield water injection well online one-step-process acidification technology
12/19/2012CN102828733A Method for extracting residual crude oil in oil field by using foam compound system
12/19/2012CN102828732A Two-stage two-section separate-injection pipe column capable of back-flushing well and protected by insert seal sleeve and separate-injection method of two-stage two-section separate-injection pipe column
12/19/2012CN102828731A Oil field water injection well dual-pressure cavity anti-blowout operation technology
12/19/2012CN102828730A Nonmetallic mineral underground in-situ drilling corrosion mining new technology
12/19/2012CN102828729A Fully-automatic hydraulic pumping unit
12/19/2012CN102828728A Energy-saving oil pumping unit in structure with radial load and torque separated
12/19/2012CN102828727A Horsehead straightening device for oil pumping unit
12/19/2012CN102828726A Planet gear ring oil pumping unit
12/19/2012CN102828725A Double rack up-down balanced cordless oil pumping unit
12/19/2012CN102122161B System and method for controlling interval pumping of oil well
12/19/2012CN102069190B Preparation method of ultra-deep penetration perforation ammunition type cover
12/19/2012CN102011566B Leakage risk early warning method for offshore oil and gas production device
12/19/2012CN101906952B Auxiliary circulatory chip returning device of production of vertical well when the coalbed methane well generates radially hydraulical jet
12/19/2012CN101876242B Foam-generating method for experiment and foam generator thereof
12/19/2012CN101769148B Distributed simulation method for offshore oil field development and production system
12/19/2012CN101737029B Crude oil extraction method capable of effectively utilizing ultra-low permeability reservoir bed
12/19/2012CN101560871B Multi-pipe-column injection test thermal recovery wellhead device
12/19/2012CN101509365B Cluster well load mutually-balancing energy-conserving oil pumping system
12/19/2012CN101358518B Heavy oil thermal recovery balanced steam injection and regulation device
12/18/2012US8334240 Compositions and methods for inhibiting the agglomeration of hydrates in a process
12/18/2012US8333570 Dense phase pump for dry particulate material
12/18/2012US8333245 Accelerated production of gas from a subterranean zone
12/18/2012US8333244 Bottom tag for progressing cavity pump rotor with coiled tubing access
12/18/2012US8333241 Methods and compositions for packing void spaces and stabilizing formations surrounding a wellbore
12/18/2012US8333239 Apparatus and method for downhole steam generation and enhanced oil recovery
12/18/2012US8333236 Auxiliary conduit cutting apparatus
12/18/2012CA2690690C A process and system for creating enhanced cavitation
12/18/2012CA2688987C System, method, and apparatus for post-fracture treatment
12/18/2012CA2640419C Process for recovering heavy oil utilizing one or more membranes
12/18/2012CA2576138C Method and apparatus for a monodiameter wellbore, monodiameter casing, monobore, and/or monowell
12/18/2012CA2573526C Under-neutralized alkylxylene sulfonic acid composition for enhanced oil recovery processes
12/18/2012CA2541174C Improvements in and relating to oil well perforators
12/17/2012CA2743748A1 Thermal assisted gravity drainage (tagd)
12/16/2012CA2743533A1 Downhole annular valve for loading a well
12/15/2012CA2779996A1 Methods and systems for monitoring and modeling hydraulic fracturing of a reservoir field
12/15/2012CA2743611A1 Methods and systems for monitoring and modeling hydraulic fracturing of a reservoir field
12/13/2012WO2012170770A2 Self clamping shaker screens
12/13/2012WO2012170553A2 Method to look ahead of the bit
12/13/2012WO2012170522A2 Proppant pillar placement in a fracture with high solid content fluid
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