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
10/31/2012CN202510094U Connecting joint for perforating gun for horizontal well
10/31/2012CN202510093U Oil well casing gas recycling device
10/31/2012CN202510092U Novel long-stroke energy-saving oil pumping unit
10/31/2012CN202510091U Long stroke energy-saving pumping unit
10/31/2012CN202510090U Long stroke energy-saving pumping unit with moveable guide mechanism
10/31/2012CN202510082U Uniflow plug
10/31/2012CN202510056U Beam hanger twist-prevention device of oil pumping machine
10/31/2012CN202510042U Layering acidification tubular column in sand prevention tube in water injection well of oil field
10/31/2012CN102762689A Method and composition for enhanced hydrocarbons recovery
10/31/2012CN102762688A Process of using hard brine at high alkalinity for enhanced oil recovery (eor) applications
10/31/2012CN102758610A Gas-liquid separation low-production fluid three-phase flow measuring method
10/31/2012CN102758604A Swelling technology for carrying out fracturing construction on fiber
10/31/2012CN102758603A Later-period air injection exploitation method for super heavy oil reservoir using steam assisted gravity drainage (SAGD) exploitation
10/31/2012CN102758602A Concentric tube hydraulic piston drainage and extraction device and method for coal-bed gas well
10/31/2012CN102758601A Top-sealed bottom-extracted extruded filled integral sand-preventing process column and method
10/31/2012CN102758599A Separate mining and combined mining pipe column for sieve pipe well completion horizontal well and mining method thereof
10/31/2012CN102758598A Integrated pipe column for accurate quantitative injection and seal examination and seal examination method thereof
10/31/2012CN102757775A Oil displacement composition containing betaine type surfactant and application thereof
10/31/2012CN101824979B Emulsion process profile control and water shutoff method of thickened oil steam huff-puff wells
10/31/2012CN101598010B Anti-pollution back pressure valve tool
10/31/2012CN101514621B Sand prevention in multiple regions without a drill
10/31/2012CN101326340B System and method for hydrocarbon production
10/30/2012US8297377 Method and system for accessing subterranean deposits from the surface and tools therefor
10/30/2012US8297363 Device and method for improving liquid removal from gas, condensate and oil wells when using a multi-channel system
10/30/2012US8297362 Natural gas supply apparatus and method
10/30/2012US8297361 Sea bed oil recovery system
10/30/2012US8297359 Subsea well intervention systems and methods
10/30/2012US8297358 Auto-production frac tool
10/30/2012US8297355 Using heat from produced fluids of oil and gas operations to produce energy
10/30/2012US8297354 Tool and method for determining formation parameter
10/30/2012US8297350 Method and system for accessing subterranean deposits from the surface
10/30/2012US8297349 Openable port and method
10/30/2012CA2693036C Hydrate control in a cyclic solvent-dominated hydrocarbon recovery process
10/30/2012CA2688745C Thermothickener polymer and surfactant composition and methods of employing the composition
10/30/2012CA2675806C Propped fracture with high effective surface area
10/30/2012CA2671498C Water reductions in subterranean formations
10/30/2012CA2644169C Compositions and methods for treating subterranean formations with liquefied petroleum gas
10/28/2012CA2739366A1 Enhanced natural gas liquid recovery process
10/27/2012CA2738364A1 Method of enhancing the effectiveness of a cyclic solvent injection process to recover hydrocarbons
10/26/2012WO2012145506A2 Tubular actuating system and method
10/26/2012WO2012145488A2 System and method for deploying a downhole casing patch
10/26/2012WO2012145090A2 Expandable liner hanger with helically shaped slips
10/26/2012WO2012144936A1 Method for increasing the permeability of the bottom well-bore region of a seam
10/26/2012WO2012144277A1 Scale inhibition method and geothermal power generating device
10/26/2012WO2012142738A1 Improved drilling technology
10/26/2012WO2012099765A3 Varying pore size in a well screen
10/26/2012WO2012099648A4 System and method for controlling formation fluid particulates
10/26/2012WO2012095196A3 Autonomous valve
10/26/2012WO2012091840A4 Isolation of zones for fracturing using removable plugs
10/26/2012WO2012088476A3 In-situ kerogen conversion and recovery
10/26/2012WO2012083180A3 "packer assembly with sealing bodies"
10/26/2012WO2012082402A3 Heat generating system for enhancing oil recovery
10/26/2012WO2012078307A3 Stackable multi-barrier system and method
10/26/2012WO2012058143A3 Method and apparatus to remove deposits
10/26/2012WO2011160999A3 Method for fighting an oilspill in the aftermath of an underwater oil well blowout and installation for carrying out the method
10/26/2012CA2833405A1 Tubular actuating system and method
10/26/2012CA2833178A1 Method for extracting hydrocarbon compounds, especially crude oil, from underground oil sands deposits
10/26/2012CA2832199A1 Electrical submersible pump with reciprocating linear motor
10/26/2012CA2831500A1 System and method for improved propped fracture geometry for high permeability reservoirs
10/26/2012CA2795037A1 Improvements on explosive carrier end plates for charge-carriers used in perforating guns
10/26/2012CA2769189A1 Method for steam assisted gravity drainage with pressure differential injection
10/25/2012US20120267122 Downhole extending ports
10/25/2012US20120267120 Cranked Rod Pump Method
10/25/2012US20120267114 Methods and Compositions for Consolidating Particulate Matter in a Subterranean Formation
10/25/2012US20120267113 Treatment of oil
10/25/2012US20120267112 Well service compositions and methods
10/25/2012US20120267111 Synthesis of Degradable Polymers Downhole for Oilfield Applications
10/25/2012US20120267110 Heating An Organic-Rich Rock Formation In Situ To Produce Products With Improved Properties
10/25/2012US20120267109 Method of treating a fractured well
10/25/2012US20120267105 Control of Particulate Entrainment by Fluids
10/25/2012US20120267104 System and Method for Improved Propped Fracture Geometry for High Permeability Reservoirs
10/25/2012US20120267103 Degradable fiber systems for stimulation
10/25/2012US20120267102 Nano-Sized Particles for Formation Fines Fixation
10/25/2012US20120267101 Application of Degradable Polymers in Sand Control
10/25/2012US20120267100 Segmental flow-control method for flow-control filter string in oil -gas well and oil-gas well structure
10/25/2012US20120267097 Multi-step solvent extraction process for heavy oil reservoirs
10/25/2012US20120267095 In situ radio frequency catalytic upgrading
10/25/2012US20120267094 Apparatus and Method for Recovering Fluids from a Well and/or Injecting Fluids into a Well
10/25/2012US20120267093 Galvanically Isolated Exit Joint for Well Junction
10/25/2012US20120267092 Down-hole Liquid Level Control for Hydrocarbon Wells
10/25/2012CA2775225A1 Electric motor and electric submersible pump
10/24/2012EP2514912A1 Smooth bore latch for tie back receptacle extension
10/24/2012EP2514089A1 System for driving elongated electric machines
10/24/2012EP2513421A1 Formation conditioning fluids comprising peroxides and methods relating thereto
10/24/2012EP2513420A1 Fracture fluid compositions comprising a mixture of mono and divalent cations and their methods of use in hydraulic fracturing of subterranean formations
10/24/2012EP2513419A1 Biogenic fuel gas generation in geologic hydrocarbon deposits
10/24/2012EP2513418A1 System, method and assembly for wellbore maintenance operations
10/24/2012EP2513417A1 Downhole sub with hydraulically actuable sleeve valve
10/24/2012EP2513414A1 Method and device for closing a well
10/24/2012EP2513408A1 Inhibiting liquid loading, corrosion and/or scaling in oilfield tubulars
10/24/2012CN202502375U Oil pumping unit start-stop alarm control device
10/24/2012CN202500553U Device for monitoring pressure and temperature in layered water injection
10/24/2012CN202500543U Hydraulic slide sleeve and pressure-bearing short connector device
10/24/2012CN202500542U Adjustable oil nozzle device for fracture blowout control
10/24/2012CN202500541U Tubular column of gas well plumb shaft multi-level layering fracturing technology
10/24/2012CN202500540U Three-channel injection-production well entrance apparatus
10/24/2012CN202500539U Movable water-injection polymer flooding device
10/24/2012CN202500538U Split-type oil nozzle
10/24/2012CN202500537U Symmetrical type double-lateral detonating large-aperture perforating bullet
10/24/2012CN202500536U Oil pumping tubing string and oil pumping rod string with self-locking type on-off connector
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