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)
06/2012
06/27/2012CN102518419A High-efficiency fracturing combined device for multi-stage horizontal well
06/27/2012CN102518418A Unlimited layer fracturing process
06/27/2012CN102518417A Method for determining output volume of hydrofracture of shale gas reservoir
06/27/2012CN102518416A Thickened oil thermal recovery water treatment method and system
06/27/2012CN102518415A Method for draining oil from fractured single horizontal well under gravity of force by using steam
06/27/2012CN102518414A Test method for fracture-cavity carbonate condensate gas reservoir water injection substituting gas experiment
06/27/2012CN102518413A Two-stage planetary reduction pumping unit with built-in winding drum
06/27/2012CN102518412A Method for mining coal and gas by hydraulic jet grouting washout
06/27/2012CN102518411A Method for mining coal bed gas by hydraulic washout of butted well in manner of pressure relief
06/27/2012CN102518410A Double-layer swinging pumping unit
06/27/2012CN102518409A Method and device for improving yield of coal bed methane by use of ultrasonic wave
06/27/2012CN102518408A Telescopic decompression type steam injection packer
06/27/2012CN102041970B Protection device for separate stratum fracturing of continuous oil pipe
06/27/2012CN101705807B Protective cover of petroleum perforation charge
06/27/2012CN101699023B High temperature-resistance external casing packer
06/27/2012CN101619651B Swinging block six-bar mechanism oil extractor
06/27/2012CN101613291B Water-soluble phase-permeable viscosity reducer and preparation method thereof
06/27/2012CN101576074B Reciprocating electric submersible pump
06/27/2012CN101575940B Drilling operation method by utilizing dual drill drilling system
06/27/2012CN101498212B Controllable acid pouring pipe and method
06/27/2012CN101487386B Automatic feeding apparatus for powder lot in bags
06/27/2012CN101443269B A process for the manufacture of carbon disulphide
06/27/2012CN101403287B Direct driving type multi-stroke multi-well oil pumping machine
06/27/2012CN101346530B Controlling pressure and static charge within a wellbore
06/27/2012CN101343993B Demixing injection-production column jacket segmenting obstruction pressed operation technique and apparatus
06/27/2012CN101307688B Solar energy oil well water injection flow automatic control device
06/27/2012CN101307679B Thin interlayer steam injection thermal production well mixing-proof well completion process
06/27/2012CA2821768A1 Method for reducing coning in oil wells by means of micro(nano)structured fluids with controlled release of barrier substances
06/26/2012US8207096 Compressible packer fluids and methods of making and using same
06/26/2012US8206124 Oil-gas vapor collection, storage, and recovery system using a variable volume gas bag connected with a control switch
06/26/2012US8205680 Expandable connection
06/26/2012US8205678 Blowout preventer with a Bernoulli effect suck-down valve
06/26/2012US8205675 Method of enhancing fracture conductivity
06/26/2012US8205674 Apparatus, system, and method for in-situ extraction of hydrocarbons
06/26/2012US8205673 Differential filters for removing water during oil production
06/26/2012US8205672 Acid tunneling bottom hole assembly and method utilizing reversible knuckle joints
06/26/2012US8205669 Fiber optic inner string position sensor system
06/26/2012CA2721550C Integrated pumping system for use in pumping a variety of fluids
06/26/2012CA2658472C Plug and related methods for isolating open perforations in horizontal wellbores using ultra lightweight proppant and soluble material
06/26/2012CA2640359C Method for hydraulic fracturing of subterranean formation
06/26/2012CA2564458C Well drilling fluids having clay control properties
06/26/2012CA2563589C Inhibiting reflux in a heated well of an in situ conversion system
06/26/2012CA2544594C Method and system for injecting a treatment fluid into a well
06/26/2012CA2398032C Open well plunger-actuated gas lift valve and method of use
06/23/2012CA2751186A1 Zero emission steam generation process
06/22/2012CA2762416A1 High pressure hydrocarbon fracturing on demand method and related process
06/21/2012WO2012083180A2 "packer assembly with sealing bodies"
06/21/2012WO2012083114A2 Compositions and methods relating to establishing circulation in stand-alone-screens without using washpipes
06/21/2012WO2012083016A2 Method and apparatus for controlled or programmable cutting of multiple nested tubulars
06/21/2012WO2012082492A2 Controlling flow between a wellbore and an earth formation
06/21/2012WO2012082491A2 Geothermal energy production
06/21/2012WO2012082489A2 Restricting production of gas or gas condensate into a wellbore
06/21/2012WO2012082488A2 Controlling flow of steam into and/or out of a wellbore
06/21/2012WO2012082469A2 Plural barrier valve system with wet connect
06/21/2012WO2012082468A2 Well screens having enhanced well treatment capabilities
06/21/2012WO2012082402A2 Heat generating system for enhancing oil recovery
06/21/2012WO2012082378A2 Apparatus and method for controlling fluid flow from a formation
06/21/2012WO2012082344A2 Sand control screen assembly having a compliant drainage layer
06/21/2012WO2012082343A2 Downhole fluid flow control system and method having direction dependent flow resistance
06/21/2012WO2012082259A1 Chemical oxidation or electromagnetic treatment in sago operations
06/21/2012WO2012082248A1 Communications module for alternate path gravel packing, and method for completing a wellbore
06/21/2012WO2012082216A1 Systems and methods for injecting a particulate mixture
06/21/2012WO2012082196A1 Perforating string with bending shock de-coupler
06/21/2012WO2012082195A1 Perforating string with longitudinal shock de-coupler
06/21/2012WO2012082186A1 Coupler compliance tuning for mitigating shock produced by well perforating
06/21/2012WO2012082081A2 A method for obtaining diagnostics and control of the pumping process of rod pumped oil and gas wells and devices for the method execution.
06/21/2012WO2012080724A2 Connection apparatus and methods
06/21/2012WO2012080640A1 Method for installing a device for recovering hydrocarbons
06/21/2012WO2012080490A1 Well completion
06/21/2012WO2012080486A1 Rock anchor
06/21/2012WO2012058546A3 Subsea pig handler
06/21/2012WO2012048217A3 Process for solidifying organic and inorganic constituents contained in produced water from heavy oil operations
06/21/2012WO2012038424A3 Apparatus for heating the ground
06/21/2012WO2012033638A4 Series configured variable flow restrictors for use in a subtrerranean well
06/21/2012WO2012021649A3 Well completion and related methods for enhanced recovery of heavy oil
06/21/2012WO2012007389A3 Safeguarding arrangement for collecting a fluid escaping into a body of water
06/21/2012WO2012005830A4 Injection valve with indexing mechanism
06/21/2012WO2011143053A8 Methods for unconventional gas reservoir stimulation with stress unloading for enhancing fracture network connectivity
06/21/2012US20120157354 Friction reducer
06/21/2012US20120152616 Perforating string with bending shock de-coupler
06/21/2012US20120152615 Perforating string with longitudinal shock de-coupler
06/21/2012US20120152614 Coupler compliance tuning for mitigating shock produced by well perforating
06/21/2012US20120152570 System and Method For Enhancing Oil Recovery From A Subterranean Reservoir
06/21/2012US20120152569 Plural barrier valve system with wet connect
06/21/2012US20120152568 Downhole Apparatus with a Swellable Support Structure
06/21/2012US20120152565 Downhole release joint with radially expandable member
06/21/2012US20120152563 Connection assembly for through tubing conveyed submersible pumps
06/21/2012US20120152562 Apparatus and Method for Controlling Fluid Flow From a Formation
06/21/2012US20120152560 System and method for channeling fluids underwater to the surface
06/21/2012US20120152558 Heat transport dead leg
06/21/2012US20120152556 Method, System and Apparatus for Deployment of Umbilicals in Subsea Well Operations
06/21/2012US20120152554 Devices and Methods for Transmitting EDS Back-up Signals to Subsea Pods
06/21/2012US20120152550 Method for Inducing Fracture Complexity in Hydraulically Fractured Horizontal Well Completions
06/21/2012US20120152549 Method of a formation hydraulic fracturing
06/21/2012US20120152548 Method to characterize underground formation
06/21/2012US20120152547 Wettability analysis of disaggregated material
06/21/2012US20120152546 Chemical oxidation or electromagnetic treatment in sagd operations
06/21/2012US20120152544 Cold weather compatible crosslinker solution
06/21/2012US20120152542 Well perforating with determination of well characteristics
06/21/2012US20120152538 Compositions and Methods Relating to Establishing Circulation in Stand-Alone-Screens Without Using Washpipes
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