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
10/03/2012CN102704922A Supercritical carbon dioxide carrying sand flow mechanism researching experiment device
10/03/2012CN102704917A Device and method for flow-state simulated experiment of fracturing fluid in horizontal well section
10/03/2012CN102704911A Multilateral well experimental model, system and sand filling method
10/03/2012CN102704907A Oil well gas anchor
10/03/2012CN102704906A Methods of stabilizing unconsolidated subterranean formations
10/03/2012CN102704905A Segmental hydraulic fracturing coal seam pressure releasing device and method
10/03/2012CN102704904A Multi-stage fracturing sliding sleeve device and using method thereof
10/03/2012CN102704903A Process method and device for extracting underground thick oil by heating with underground heat energy
10/03/2012CN102704902A Natural gas hydrate exploiting method
10/03/2012CN102704901A Apparatus and method for multipoint pressure measuring long-core deep profile control experiment
10/03/2012CN102704900A Subsection water injection tubular column for shallow measurement in vertical well section of horizontal well
10/03/2012CN102704899A Depth and direction compensator
10/03/2012CN102704898A Coding type classification perforation instrument
10/03/2012CN102704897A Gravitational equilibrium hydraulic pressure long stroke pumping unit
10/03/2012CN102704896A Method for mining shale gas energy in hydrofracturing mode for photovoltaic power system
10/03/2012CN102704895A Shale gas energy explored in hydraulic fracturing mode for wind and light complementary power generation system irrigation
10/03/2012CN102704894A In-situ submarine natural gas hydrate exploiting device and method thereof
10/03/2012CN102704891A Device for collecting oil well natural gas
10/03/2012CN102704890A Controllable blanking plug
10/03/2012CN102704888A Novel underwater manifold sledge
10/03/2012CN102703052A Foam system suitable for profile control and oil displacement of oil field and oil displacement method
10/03/2012CN102703049A Binary compound oil-flooding composition and application thereof in tertiary oil recovery
10/03/2012CN102703045A Multi-slug composite pressure decreasing and injection increasing agent for ultra-low permeability oil field
10/03/2012CN102701504A Method for preparing polymer solution for oil displacement of oil field
10/03/2012CN101969260B Cylindrical submersible linear motor and submersible linear pumping unit
10/03/2012CN101915081B PLC (Programmable Logic Controller) intelligent automatic sand mixing system and control method thereof
10/03/2012CN101871323B Lengthened polish rod for oil well and connecting method thereof
10/03/2012CN101858206B Bushing evacuating device and installation method
10/03/2012CN101749000B Energy-concentrated bullet blasting and perforating process
10/03/2012CN101560876B Multifunctional processor for liquid generated underground
10/03/2012CN101539003B Grinderless efficiently energy-saving pumping machine
10/03/2012CN101469606B Chain type oil pump
10/03/2012CN101424181B Method and system for determining and penetrating underground coal gasification passage
10/03/2012CN101424173B Piston type thermal extraction casing head
10/03/2012CN101392639B Dynamic balance pumping system
10/03/2012CN101324182B Turntable type oil pumping machine and combined type energy-saving oil pumping machine unit
10/02/2012US8279708 Measurement method for a granular compaction pile using crosshole seismic testing
10/02/2012US8276677 Coiled tubing bottom hole assembly with packer and anchor assembly
10/02/2012US8276675 System and method for servicing a wellbore
10/02/2012US8276673 Gas lift system
10/02/2012US8276667 Delayed breaking of well treatment fluids
10/02/2012US8276664 Well treatment operations using spherical cellulosic particulates
10/02/2012US8276663 Methods for reducing biological load in subterranean formations
10/02/2012US8276661 Heating subsurface formations by oxidizing fuel on a fuel carrier
10/02/2012US8276659 Proppant addition system and method
10/02/2012US8276658 Multi-channel, combination coiled tubing strings for hydraulically driven downhole pump
10/02/2012US8276656 System and method for mitigating shock effects during perforating
10/02/2012CA2688974C Methods for placing multiple stage fractures in wellbores
10/02/2012CA2634446C Improved polymeric gel system and methods for making and using same in hydrocarbon recovery
10/02/2012CA2593585C In situ heavy oil and bitumen recovery process
10/02/2012CA2587685C Viscoelastic surfactant fluids comprising ethyleneglycolethyletheracrylate derived copolymer and having enhanced shear recovery, rheology and stability performance
10/02/2012CA2547031C Method of producing a hermetic tubular joint comprising local and initial added thickness(es), by means of plastic expansion
10/02/2012CA2538439C Method and composition for enhanced hydrocarbons recovery
10/02/2012CA2499638C Borehole conductivity profiler
10/02/2012CA2346489C A multiphase density profiler
09/2012
09/30/2012CA2772487A1 Method for managing channeling in geothermal recovery of hydrocarbon reservoirs
09/30/2012CA2769839A1 Methods to reduce settling rate of solids in a treatment fluid
09/27/2012WO2012129406A1 Methods of using invert emulsion fluids with high internal phase concentration
09/27/2012WO2012129075A2 Systems and methods for separating oil and/or gas mixtures
09/27/2012WO2012129029A2 Multiple liner hanger assembly
09/27/2012WO2012128759A1 Well tool assemblies with quick connectors and shock mitigating capabilities
09/27/2012WO2012127396A2 System for degassing a liquid
09/27/2012WO2012127157A1 Method for the assisted installation of an underwater riser
09/27/2012WO2012091983A3 Secondary flow path module, gravel packing system including the same, and method of assembly thereof
09/27/2012WO2012091840A3 Isolation of zones for fracturing using removable plugs
09/27/2012WO2012082469A3 Plural barrier valve system with wet connect
09/27/2012WO2012082344A3 Sand control screen assembly having a compliant drainage layer
09/27/2012WO2012074836A3 Removable insert for formation of a recess in a tubular by expansion
09/27/2012US20120241170 Well tool assemblies with quick connectors and shock mitigating capabilities
09/27/2012US20120241169 Well tool assemblies with quick connectors and shock mitigating capabilities
09/27/2012US20120241166 Residual Moveout Estimation Through Least Squares Inversion
09/27/2012US20120241163 Managed pressure drilling with rig heave compensation
09/27/2012US20120241161 Flushing system
09/27/2012US20120241160 Oil well improvement system
09/27/2012US20120241158 Radical trap in oil and gas stimulation operations
09/27/2012US20120241157 Sintered particles and methods for producing sintered particles from a slurry of an alumina-containing raw material
09/27/2012US20120241156 Selective fluid with anchoring agent for water control
09/27/2012US20120241153 Method of Enhancing Fracture Conductivity
09/27/2012US20120241152 Method of fracturing a subterranean formation at optimized and pre-determined conditions
09/27/2012US20120241151 Process for mineral oil production using surfactants from the class of the alkyl polyglucosides
09/27/2012US20120241150 Methods for producing oil and/or gas
09/27/2012US20120241148 Control of fluid flow during treatment of subterranean sites using well fluid injection
09/27/2012CA2829777A1 Apparatus and method for positioning of a fluidized plugging material in an oil well or gas well
09/27/2012CA2829451A1 Treatment fluids containing a biodegradable chelating agent and methods for use thereof
09/27/2012CA2827973A1 Methods of fluid loss control and fluid diversion in subterranean formations
09/26/2012EP2501899A1 System for analysing gas from strata being drilled under high mud flows
09/26/2012EP2501898A2 Heat generation process for treating oilfield deposits
09/26/2012EP2501897A2 Compensator assembly for submersible pump system
09/26/2012EP2501896A2 Expansion system for expandable tubulars
09/26/2012EP2501895A2 Method and system for lining a section of a wellbore with an expandable tubular element
09/26/2012EP2501890A2 Swellable connection system and method of using the same
09/26/2012CN202451203U Mining gas drainage and coal-bed flooding integrated hole packer
09/26/2012CN202451132U Automatic control metering device for oil well
09/26/2012CN202451128U Special connector for gas fracturing
09/26/2012CN202451127U Low pressure liquid pipe manifold for large-scale fracturing construction of shale gas well
09/26/2012CN202451126U High-temperature injection-production process pipe column for J-shaped well
09/26/2012CN202451125U Equal dryness distributor
09/26/2012CN202451124U Multifunctional vehicle-mounted foam drainage system
09/26/2012CN202451123U Multifunctional anti-theft water distribution device
09/26/2012CN202451122U Special connection device for perforation apparatus
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