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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10/23/2013 | CN203248126U Linear pumping unit |
10/23/2013 | CN1752406B Single crank double stroke flexible rope beam-pumping unit |
10/23/2013 | CN103370493A Modular transportable system for sagd process |
10/23/2013 | CN103370492A Fluid injection device |
10/23/2013 | CN103362540A High gas coal seam pressure relief gas extraction method |
10/23/2013 | CN103362538A Pressure alternate gas exhausting method by slotting and fracturing coal seams |
10/23/2013 | CN103362490A Production-injection device for downhole oil-water separation |
10/23/2013 | CN103362489A Method used for stratum hydraulic fracture |
10/23/2013 | CN103362488A Sand blasting device allowing fracturing sliding sleeve to be fished |
10/23/2013 | CN103362487A Segmented fracturing method of low-permeability oil reservoir horizontal well |
10/23/2013 | CN103362486A Digital underground layering water injection testing and adjusting process pipe column and operation method thereof |
10/23/2013 | CN103362485A Method and well pattern structure for exploiting heavy oil reservoir through gravity assisted nano magnetofluid flooding |
10/23/2013 | CN103362484A Oil drainer for sand control valve |
10/23/2013 | CN103362483A Horizontal well gravel-packed string and pressure control valves thereof |
10/23/2013 | CN103362482A Connector of gas collecting and measuring device and application method thereof |
10/23/2013 | CN103362481A Differential pressure load shedder of oil pumping unit |
10/23/2013 | CN103362480A Laminated spiral lifting equipment and technology |
10/23/2013 | CN103362479A Beam oil pumper for directly adjusting balance with steel wire rope |
10/23/2013 | CN103361042A Xanthan gum non-crosslinking fracturing fluid as well as preparation method and application thereof |
10/23/2013 | CN102213083B Negative pressure perforation and ultra-negative pressure pump suction integrated production process |
10/23/2013 | CN102146783B Mouse cage type V-shaped straight wire sieve tube |
10/23/2013 | CN102094617B Pitch-variable spiral gas anchor |
10/23/2013 | CN102052067B In-depth profile control step by step method employing equipressure drop gradient |
10/23/2013 | CN101975053B Hydraulic power pulse oil displacement experimental facility and experimental method thereof |
10/23/2013 | CN101566053B System and method to facilitate treatment and production in wellbore |
10/23/2013 | CA2805379A1 Swellable packer in hookup nipple |
10/22/2013 | US8562078 Hydrocarbon production from mines and tunnels used in treating subsurface hydrocarbon containing formations |
10/22/2013 | US8561813 Cyclonic debris evacuation apparatus and method for a pump |
10/22/2013 | US8561709 Liner top packer seal assembly and method |
10/22/2013 | US8561699 Well screens having enhanced well treatment capabilities |
10/22/2013 | US8561694 Monitoring downhole production flow in an oil or gas |
10/22/2013 | CA2806044C Integrated xtl and in-situ oil sands extraction processes |
10/22/2013 | CA2751551C A plant for separating oil from a gas mixture, and a method for separating oil from a gas mixture |
10/22/2013 | CA2749586C System and method for a combined submersible motor and protector |
10/22/2013 | CA2741916C Integration of viscous oil recovery processes |
10/22/2013 | CA2737377C Polymer gels as flow improvers in water injection systems |
10/22/2013 | CA2712882C Latching mechanism for changing pump size |
10/22/2013 | CA2696600C Hydraulically actuated downhole pump with gas lock prevention |
10/20/2013 | CA2810093A1 System and method for enhanced magnet wire insulation |
10/17/2013 | WO2013155445A2 Cold heavy oil production system and methods |
10/17/2013 | WO2013155307A2 Method of increasing the permeability of a subterranean formation by creating a multiple fracture network |
10/17/2013 | WO2013155061A1 Triggered heating of wellbore fluids by carbon nanomaterials |
10/17/2013 | WO2013154926A1 Fluids and methods including nanocellulose |
10/17/2013 | WO2013154727A2 Multi-interval wellbore treatment method |
10/17/2013 | WO2013154685A1 A method of simultaneously stimulating multiple zones of a formation using flow rate restrictors |
10/17/2013 | WO2013154682A1 Adjustable flow control device |
10/17/2013 | WO2013154628A1 System for fracturing an underground geologic formation |
10/17/2013 | WO2013154544A1 Method and apparatus for actuating a differential pressure firing head |
10/17/2013 | WO2013154449A1 Set of equipment for extracting highly viscous oil |
10/17/2013 | WO2013095698A3 Cranked rod pump apparatus and method |
10/17/2013 | WO2013017859A3 A downhole device for data acquisition during hydraulic fracturing operation and method thereof |
10/17/2013 | WO2012082304A3 Autonomous downhole conveyance system |
10/17/2013 | US20130274170 Compositions of viscoelastic surfactant and hydrophobically modified polymer as aqueous thickeners |
10/17/2013 | US20130270003 Devices and methods for perforating a wellbore |
10/17/2013 | US20130269955 Downhole Apparatus |
10/17/2013 | US20130269949 Cold Heavy Oil Production System and Methods |
10/17/2013 | US20130269947 Marine Subsea Assemblies |
10/17/2013 | US20130269944 Treatment Fluids Comprising an Alkali Metal Complexing Agent and Methods for Use Thereof |
10/17/2013 | US20130269943 Method of Recovering Oil and Producing Produced Water That is Concentrated and Dried by a Double Drum Dryer |
10/17/2013 | US20130269941 Treatment Fluids Comprising a Hydroxypyridinecarboxylic Acid and Methods for Use Thereof |
10/17/2013 | US20130269937 Acidizing Fluids Comprising a Salt Block Inhibitor and Methods for Use Thereof |
10/17/2013 | US20130269936 Treatment Fluids Comprising a Silicate Complexing Agent and Methods for Use Thereof |
10/17/2013 | US20130269935 Treating hydrocarbon formations using hybrid in situ heat treatment and steam methods |
10/17/2013 | US20130269934 Method for production of high purity distillate from produced water for generation of high pressure steam |
10/17/2013 | US20130269932 Methods for treating carbonate hydrocarbon-bearing formations with fluorinated amine oxides |
10/17/2013 | DE102010050244B4 Meißeldirektantrieb für Werkzeuge auf Basis einer Wärmekraftmaschine Direct bit drive for tools on the basis of a heat engine |
10/16/2013 | EP2650471A1 Method for selecting positions of wells to be drilled for exploiting an oil field |
10/16/2013 | EP2650470A2 Selective placement of conformance treatments in multi-zone well completions |
10/16/2013 | EP2650469A2 Selective placement of conformance treatments in multi-zone well completions |
10/16/2013 | EP2649271A2 A method to improve reservoir simulation and recovery from fractured reservoirs |
10/16/2013 | EP2649270A2 Enhanced oil recovery screening model |
10/16/2013 | EP2649148A2 Multiple component neutrally buoyant proppant |
10/16/2013 | EP2649147A2 Single component neutrally buoyant proppant |
10/16/2013 | CN203239662U Power unit of hydraulic pumping unit and corresponding hydraulic pumping unit |
10/16/2013 | CN203239661U Power unit of hydraulic type pumping unit and corresponding hydraulic type pumping unit |
10/16/2013 | CN203239338U Two-dimensional artificial core model for researching edge-bottom water oil reservoir water invasion rules |
10/16/2013 | CN203239328U Two-dimensional microcosmic visualization simulation experiment device |
10/16/2013 | CN203239320U Layered flowmeter for water injection well with low injection allocation rate |
10/16/2013 | CN203239315U Downhole oil-water separation device |
10/16/2013 | CN203239314U Vertical mounting sealing-pair zero-leakage drain valve for natural gas |
10/16/2013 | CN203239313U Device for reducing intake air temperature of dehydration pry |
10/16/2013 | CN203239312U Container type slug flow trapping device system |
10/16/2013 | CN203239311U Horizontal well double-seal dragging fracturing sandblast |
10/16/2013 | CN203239310U Unlimited-section fracture casing pipe sliding sleeve |
10/16/2013 | CN203239309U Two-dimensional model for thickened oil gravity drainage simulation experiment |
10/16/2013 | CN203239308U Seepage type steam flow control device and thermal recovery steam injection tubular column |
10/16/2013 | CN203239307U Impulse type steam distributing tubular column |
10/16/2013 | CN203239306U Digital dosing, pipe gathering and ball collecting integrated device |
10/16/2013 | CN203239305U Automatic medicine feeding device |
10/16/2013 | CN203239304U Laboratory simulation test device for gas well foam water discharge |
10/16/2013 | CN203239303U Extraction device used for injection and extraction of same well |
10/16/2013 | CN203239302U Separated-layer water injection tubular column |
10/16/2013 | CN203239301U Anchoring device for PE (polyethylene) sieve tube well completion of coal bed gas horizontal well |
10/16/2013 | CN203239300U Modified ceramsite sand filter pipe |
10/16/2013 | CN203239299U Filling device for filling gravels into horizontal well pipe |
10/16/2013 | CN203239298U Annular-opening gear pumping unit without walking beam |
10/16/2013 | CN203239297U Dual-horse-head pumping unit rear lifting rope rigid contact prevention device |
10/16/2013 | CN203239296U Fireflooding double-pipe shaft mouth oil extraction pipe column |
10/16/2013 | CN203239295U Suspending type oil bailing counterweight |
10/16/2013 | CN203239294U Device for implementing remote start and stop of oil pumping unit |