| 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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| 01/17/2013 | WO2013009274A2 Manifold trailer with multiple articulating arm assemblies | 
| 01/17/2013 | WO2013008195A2 System and method for performing wellbore stimulation operations | 
| 01/17/2013 | WO2013007566A1 Downhole hydraulic pump | 
| 01/17/2013 | WO2013007297A1 Re-boiling of production fluids | 
| 01/17/2013 | WO2013006966A2 Method for the in situ recovery of heavy oil from a subterranean deposit | 
| 01/17/2013 | WO2013006950A1 Hydrocarbon recovery with in-situ combustion and separate injection of steam and oxygen | 
| 01/17/2013 | WO2012149007A3 Functionally gradient composite article | 
| 01/17/2013 | WO2012148749A3 Load balancing spherical diameter single seat ball system | 
| 01/17/2013 | WO2012115889A3 Expandable packer with expansion induced axially movable support feature | 
| 01/17/2013 | WO2012092452A3 Short length pump having brine resistant seal and rotating wrist pin and related methods | 
| 01/17/2013 | US20130014990 Novel Device and Methods for Firing Perforating Guns | 
| 01/17/2013 | US20130014959 Remotely Activated Downhole Apparatus and Methods | 
| 01/17/2013 | US20130014955 Methods of limiting or reducing the amount of oil in a sea using a fluid director | 
| 01/17/2013 | US20130014953 Multi-Zone Screened Frac System | 
| 01/17/2013 | US20130014952 Treatment of hydrocarbon containing reservoirs with electrolyzed water | 
| 01/17/2013 | US20130014951 Applying treatment fluid to a subterranean rock matrix | 
| 01/17/2013 | US20130014950 Methods of Well Cleanout, Stimulation and Remediation and Thermal Convertor Assembly for Accomplishing Same | 
| 01/17/2013 | US20130014947 Drilling/Frac Adapter and Method of Use | 
| 01/17/2013 | US20130014946 Hydraulic fracturing system | 
| 01/17/2013 | US20130014945 Low Surface Friction Proppants | 
| 01/17/2013 | US20130014944 Cellular pump | 
| 01/17/2013 | US20130014941 Remotely Activated Downhole Apparatus and Methods | 
| 01/17/2013 | US20130014940 Estimating a Wellbore Parameter | 
| 01/17/2013 | CA2877897A1 Method for the in situ recovery of heavy oil from a subterranean deposit | 
| 01/17/2013 | CA2841412A1 Estimating fluid levels in a progressing cavity pump system | 
| 01/17/2013 | CA2841040A1 System and method for performing wellbore stimulation operations | 
| 01/17/2013 | CA2840469A1 Downhole hydraulic pump | 
| 01/17/2013 | CA2840235A1 Low surface friction proppants | 
| 01/17/2013 | CA2839684A1 Manifold trailer with multiple articulating arm assemblies | 
| 01/17/2013 | CA2839680A1 High pressure and flow rate pump useful in formation fluid sample testing | 
| 01/17/2013 | CA2839010A1 Remotely activated downhole apparatus and methods | 
| 01/17/2013 | CA2839002A1 Remotely activated downhole apparatus and methods | 
| 01/16/2013 | EP2546453A1 Dc powered subsea inverter | 
| 01/16/2013 | EP2545314A2 Apparatus and method for installing a pipeline structure at sea | 
| 01/16/2013 | EP2545248A2 Shaped charge liner comprised of reactive materials | 
| 01/16/2013 | EP2545244A2 System and method for separating solids from fluids | 
| 01/16/2013 | CN202679286U A pumping unit well group control system based on a DC bus | 
| 01/16/2013 | CN202673271U Sand settling gas anchor for oil pumping well | 
| 01/16/2013 | CN202673270U Gas-liquid separation metering device | 
| 01/16/2013 | CN202673269U Automatic control system for closed bump fracturing blender truck | 
| 01/16/2013 | CN202673268U Water jet single-panel panel cutter | 
| 01/16/2013 | CN202673267U Horizontal well underground physical simulation test device | 
| 01/16/2013 | CN202673266U Experimental device for simulation of microwave heating of oil shale in real stratum situation | 
| 01/16/2013 | CN202673265U Oil well carbon dioxide foam injection device | 
| 01/16/2013 | CN202673264U Downhole automatic chemical dosing device for oil well | 
| 01/16/2013 | CN202673263U Pressure control water injection well safety valve | 
| 01/16/2013 | CN202673262U Downhole multifunctional adjustable anti-counterflow water distributor | 
| 01/16/2013 | CN202673261U Coiled tubing conveyed perforating flow control switch nipple | 
| 01/16/2013 | CN202673260U Detonator installation pipe nipple for coiled tubing conveyed perforation | 
| 01/16/2013 | CN202673259U Combined type double-piston pressure relief joint of oil perforating gun | 
| 01/16/2013 | CN202673258U Filling device for well completion in oil exploitation | 
| 01/16/2013 | CN202673257U Novel well completion and filling device for oil production of oil field | 
| 01/16/2013 | CN202673256U One-machine double-extraction lifting device for cluster well | 
| 01/16/2013 | CN202673255U Horsehead centering device for oil pumping unit | 
| 01/16/2013 | CN202673254U Speed reducer for driving oil pumping machine to pump oil in energy saving way | 
| 01/16/2013 | CN202673253U Novel pumping unit horse head | 
| 01/16/2013 | CN202673252U Novel device for quickly moving balance block | 
| 01/16/2013 | CN202673251U Pumping unit adopting concrete prefabrication load-bearing frame | 
| 01/16/2013 | CN202673250U Vertical type hydraulic pressure oil pumping unit | 
| 01/16/2013 | CN202673227U Novel underwater manifold package | 
| 01/16/2013 | CN202673169U Multiphase-flow flow adjusting device | 
| 01/16/2013 | CN202669583U Liquid CO2 injection vehicle | 
| 01/16/2013 | CN102884361A Apparatuses and methods for storing and/or filtering a substance | 
| 01/16/2013 | CN102884280A Self-toughened high-strengh proppant and methods of making same | 
| 01/16/2013 | CN102884279A Insulated conductor heaters with semiconductor layers | 
| 01/16/2013 | CN102884278A Systems and methods for producing oil and/or gas | 
| 01/16/2013 | CN102884277A Fracturing a stress-altered subterranean formation | 
| 01/16/2013 | CN102884276A Injection or other system with anti-thermal lockdown mechanism and related method | 
| 01/16/2013 | CN102877836A Localizable direct-reading type dual-flow water regulating device | 
| 01/16/2013 | CN102877835A Well temperature forecasting method for horizontal production well in fire flooding process | 
| 01/16/2013 | CN102877833A Compensated pressure measurement drilling gas-water separation drainage device | 
| 01/16/2013 | CN102877824A Horizontal well staged and multi-cluster fracturing method by hydraulic jetting | 
| 01/16/2013 | CN102877823A Cracking method adopting blasting principle for improving gas output for shale gas | 
| 01/16/2013 | CN102877822A Application of ultrasonic wave to oil exploitation of oil well | 
| 01/16/2013 | CN102877821A Thickened oil steam huff and puff injection-production integrated device | 
| 01/16/2013 | CN102877820A Method for reducing water injection pressure of reservoir well | 
| 01/16/2013 | CN102877819A Carbon dioxide cyclic injection system of coal-bed gas well | 
| 01/16/2013 | CN102877818A Chain wheel pin tooth pumping unit | 
| 01/16/2013 | CN102877782A Rotary drilling rig and bittern collecting method | 
| 01/16/2013 | CN102876979A Steel tube for perforating guns and manufacturing method thereof | 
| 01/16/2013 | CN102234163B Method of heating sewage by using circulating fluidized bed boiler | 
| 01/16/2013 | CN101975054B High-pressure hydraulic cutting machine for cutting coal seams | 
| 01/16/2013 | CN101892822B Quick connector of perforating gun | 
| 01/16/2013 | CN101858208B Mixed gas injecting device combusting heavy oil | 
| 01/16/2013 | CN101852073B Novel integration technique for improving recovery ratio of thick oil with high thickness and low yield | 
| 01/16/2013 | CN101839119B Double-faced toothed chain tower-type pumping unit | 
| 01/16/2013 | CN101553644B Method for producing viscous hydrocarbon using steam and carbon dioxide | 
| 01/16/2013 | CN101313126B Solution mining systems and methods for treating hydrocarbon containing formations | 
| 01/15/2013 | US8355623 Temperature limited heaters with high power factors | 
| 01/15/2013 | US8353352 Switch mechanisms that allow a single power cable to supply electrical power to two or more downhole electrical motors alternatively and methods associated therewith | 
| 01/15/2013 | US8353348 High power umbilicals for subterranean electric drilling machines and remotely operated vehicles | 
| 01/15/2013 | US8353346 Prevention, actuation and control of deployment of memory-shape polymer foam-based expandables | 
| 01/15/2013 | US8353345 Geothermal well diversion agent formed from in situ decomposition of carbonyls at high temperature | 
| 01/15/2013 | US8353344 Fiber aggregate | 
| 01/15/2013 | US8353343 Hydrocarbon production process | 
| 01/15/2013 | US8353342 Steam generation for steam assisted oil recovery | 
| 01/15/2013 | US8353341 Well system | 
| 01/15/2013 | US8353340 In situ combustion with multiple staged producers | 
| 01/15/2013 | CA2722303C Method, apparatus and system for characterizing two phase fluid flow in an injection well | 
| 01/15/2013 | CA2693486C Valuing future information under uncertainty |