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)
10/2012
10/17/2012CN202493245U Upturning retreating wind-proof beam-free type pumping unit
10/17/2012CN202493244U Cylinder-type pulse-free petroleum pumping machine
10/17/2012CN202493243U Oil extraction system of submergible sliding vane pump
10/17/2012CN202493240U Antifreeze-type pressure-stabilizing and gas discharging oil extraction composite set
10/17/2012CN1875168B Hydrocarbon recovery from impermeable oil shales
10/17/2012CN102741504A System for analysing gas from strata being drilled under high mud flows
10/17/2012CN102741502A Technique of fracturing with selective stream injection
10/17/2012CN102741501A System, method and assembly for steam distribution along a wellbore
10/17/2012CN102741500A System, method and assembly for wellbore maintenance operations
10/17/2012CN102741499A Method of expanding a tubular element in a wellbore
10/17/2012CN102741498A System and method for a direct drive pump
10/17/2012CN102734604A Intelligent intermission bailing type beam pumping unit outer cover lifting hole and rain-proof device
10/17/2012CN102734293A Lubricating horsehead pin of oil pumping machine
10/17/2012CN102733794A Method for exploring sand surfaces by trying to squeeze sand compartments
10/17/2012CN102733790A Sliding sleeve sand blower with hydraulic anchor
10/17/2012CN102733789A Staged fracturing construction yield increment method for waterpower in deep thickened oil deposit thick-bedded sandstone storage layer
10/17/2012CN102733788A Novel electric pressure measuring and regulating device for chemical flooding injection well
10/17/2012CN102733787A Plug-in coiled tubing induced-spraying device
10/17/2012CN102733786A Sliding sleeve for mining oil-gas well in layering manner
10/17/2012CN102733785A Adjustable continuous blowout device
10/17/2012CN102733784A Closed type striking initiator
10/17/2012CN102733783A Oil extraction filter
10/17/2012CN102733782A Lubrication-free chain oil pumping unit for oil production in oil field
10/17/2012CN102733781A Helical lifting oil production machine
10/17/2012CN102733779A Monitoring and automatic control of operating parameters for a downhole oil/water separation system
10/17/2012CN102733772A Christmas tree of tubing head for borehole operation without killing well
10/17/2012CN102732243A Oil-displacing agent for binary oil displacement and binary oil displacement mining method of oil field
10/17/2012CN102732241A Easily-degradable alkali-free viscosity reducer for thick oil and preparation method thereof
10/17/2012CN102732240A Self-distribution seepage-regulation water-controlling acidifying technology
10/17/2012CN102729882A Liquid CO2 injection truck
10/17/2012CN102032145B Differential pressure power pressure booster
10/16/2012US8287640 Stable foamed cement slurry compositions and methods for making and using same
10/16/2012US8286805 Method and apparatus for fluid separation
10/16/2012US8286711 Running tool that prevents seal test
10/16/2012US8286708 Methods and apparatuses for installing lateral wells
10/16/2012US8286707 Treating subterranean zones
10/16/2012US8286706 Pressure compensation for a perforating gun
10/16/2012US8286705 Apparatus and method for treating a subterranean formation using diversion
10/16/2012US8286704 Coiled tubing conveyed combined inflow and outflow control devices
10/16/2012US8286698 Method for producing viscous hydrocarbon using steam and carbon dioxide
10/16/2012US8286697 Internally supported perforating gun body for high pressure operations
10/16/2012CA2754347C Water heating apparatus for continuous heated water flow and method for use in hydraulic fracturing
10/16/2012CA2645401C Tubular expansion method
10/16/2012CA2641281C Well liner segments for in situ petroleum upgrading and recovery, and method of in situ upgrading and recovery
10/16/2012CA2592880C Automated well bore compensation control system
10/16/2012CA2525990C Method of increasing the low shear rate viscosity of well drilling and servicing fluids containing calcined magnesia bridging solids, the fluids and methods of use
10/15/2012CA2772277A1 Cluster opening sleeves for wellbore
10/15/2012CA2771542A1 Electromagnetic wave treatment method and promoter
10/15/2012CA2737410A1 Heat recovery for bitumen froth treatment plant integration with sealed closed-loop cooling circuit
10/11/2012WO2012138848A2 Portable fluid storage system
10/11/2012WO2012138608A1 Hydrocarbon processing by using radiofrequency electromagnetic waves
10/11/2012WO2012138501A2 Torque transmitting rings for sleeves in electrical submersible pumps
10/11/2012WO2012138485A2 Method and compositions for enhanced oil recovery
10/11/2012WO2012138454A1 Method for recovering hydrocarbon from tar sand using nanofluid
10/11/2012WO2012138402A1 Low-melting elemental metal or fusible alloy encapsulated polymerization initiator for delayed initiation
10/11/2012WO2012138353A1 Wellbore pressure control with optimized pressure drilling
10/11/2012WO2012137068A2 Mobile, modular, electrically powered system for use in fracturing underground formations
10/11/2012WO2012136258A1 Temperature responsive packer and associated hydrocarbon production system
10/11/2012WO2012103052A3 Well deployed heat fin for esp motor
10/11/2012WO2012100242A3 Downhole sand control apparatus and method with tool position sensor
10/11/2012WO2012087349A3 Zero emission steam generation process
10/11/2012WO2012066290A3 Downhole method and apparatus for use in conditioning drilled bores
10/11/2012US20120255887 Method for Recovering Hydrocarbon from Tar Sand Using Nanofluid
10/11/2012US20120255792 Method of drilling and jet drilling system
10/11/2012US20120255791 Method of drilling and abrasive jet drilling assembly
10/11/2012US20120255737 Apparatus, system, and methods for generating a non-plugging hydrate slurry
10/11/2012US20120255735 Water heating apparatus for continuous heated water flow and method for use in hydraulic fracturing
10/11/2012US20120255734 Mobile, modular, electrically powered system for use in fracturing underground formations
10/11/2012US20120255732 Ultrafine grinding of soft materials
10/11/2012US20120255731 Process for producing mineral oil from underground formations
10/11/2012US20120255730 Partial solution mining of hydrocarbon containing layers prior to in situ heat treatment
10/11/2012US20120255729 Multistage process for producing mineral oil using microorganisms
10/11/2012US20120255728 Plugging Thief Zones and Fractures by In-Situ and In-Depth Crystallization for Improving Water Sweep Efficiency of Sandstone and Carbonate Reservoirs
10/11/2012US20120255726 In-situ microbial oxygen generation and hydrocarbon conversion in a hydrocarbon containing formation
10/11/2012US20120255725 Methods for obtaining clean energy from coal
10/11/2012US20120255722 Perforating string with longitudinal shock de-coupler
10/11/2012DE102011102448A1 Verfahren zur Entmethanisierung von Grundwasser Method for demethanization of groundwater
10/11/2012CA2832511A1 Injection device
10/11/2012CA2832230A1 Method and compositions for enhanced oil recovery
10/11/2012CA2832060A1 Torque transmitting rings for sleeves in electrical submersible pumps
10/11/2012CA2831452A1 Hydrocarbon processing by using radiofrequency electromagnetic waves
10/11/2012CA2831039A1 Wellbore pressure control with optimized pressure drilling
10/10/2012EP2508708A1 Method of completing a well
10/10/2012EP2508707A1 Monitoring the phase composition of production fluid from a hydrocarbon extraction well
10/10/2012EP2507475A1 Method of hydraulically fracturing a formation
10/10/2012EP2507474A2 Device and method for obtaining, especially in situ, a carbonaceous substance from an underground deposit
10/10/2012EP2507473A1 Downhole artificial lifting system
10/10/2012EP2507472A1 Inflow control in a production casing
10/10/2012EP2507471A2 Device and method for obtaining, especially in situ, a carbonaceous substance from an underground deposit
10/10/2012EP2507470A2 Device and method for obtaining, in particular in situ, a substance containing carbon from an underground deposit
10/10/2012EP2507469A1 An apparatus for sealing off a part of a wall in a section drilled into an earth formation, and a method for applying the apparatus
10/10/2012CN202488931U Protection panel for time controller of oil pumping unit
10/10/2012CN202486620U Fault diagnosis and automatic control device for oil pumping unit
10/10/2012CN202484531U Reinforcer for oil pumping unit
10/10/2012CN202484265U Antitheft cover for reduction box of oil pumping unit
10/10/2012CN202484228U Belt expansion wheel of oil pumping unit
10/10/2012CN202484225U Belt tensioning force displaying and adjusting device in dragging system of oil pumping machine
10/10/2012CN202483553U Low gas measure system
10/10/2012CN202483548U Oil measuring separator
10/10/2012CN202483547U Well completion structure of water-dissolving method mine combination well
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