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)
10/2007
10/11/2007	US20070235189 Method for Treating a Subterranean Formation
10/11/2007	US20070235187 Low Temperature Oxidation for Enhanced Oil Recovery
10/11/2007	US20070235185 Measuring a Characteristic of a Well Proximate a Region to be Gravel Packed
10/11/2007	US20070235184 Method and apparatus for sensing a borehole characteristic
10/11/2007	US20070235181 Hydraulic Fracturing
10/11/2007	CA2648265A1 Method and apparatus for providing pressure for well treatment operations
10/11/2007	CA2549782A1 Method for recovering hydrocarbons from subterranean formations
10/10/2007	EP1841947A2 Accessing subterranean resources by formation collapse
10/10/2007	EP1841946A1 Method and system for cleaning a well bore
10/10/2007	EP1552274B1 Borehole conductivity profiler
10/10/2007	CN200958471Y Ceramic catch beam-pumping unit
10/10/2007	CN200958388Y Arbitrary-layer chemical feeder
10/10/2007	CN200958387Y Vehicle high-pressure and super-high pressure nitrogen making and filling complete sets
10/10/2007	CN200958386Y High-aperture-density path windowmaker
10/10/2007	CN200958385Y Integrated sandproof composite sieve tube
10/10/2007	CN101052780A Production of free gas by gas hydrate conversion
10/10/2007	CN101050765A High power oil-submersible linear permanent magnetic step motor plunger pump
10/10/2007	CN101050764A Balance type two-way deep well oil pumping
10/10/2007	CN101050697A One dimension production analogue test device for natural gas hydrate
10/10/2007	CN100342118C Well treating process and system
10/10/2007	CN100342117C Underground gasification furnace operating state monitoring system
10/10/2007	CN100342116C Self-adaptive laminated distributor under well
10/10/2007	CN100342115C Sieve tube simulating experiment device
10/10/2007	CN100341971C Water block removal with surfactant based hydrocarbonaceous liquid system
10/10/2007	CA2585032A1 Multi gas well production arrangement
10/10/2007	CA2581839A1 Low temperature oxidation enhanced oil recovery with catalyst
10/09/2007	US7278543 Device for separating multi-phase fluids
10/09/2007	US7278497 Method for extracting coal bed methane with source fluid injection
10/09/2007	US7278492 Expandable liner hanger system and method
10/09/2007	US7278489 Gas turbine for oil lifting
10/09/2007	US7278486 Fracturing method providing simultaneous flow back
10/09/2007	US7278485 Method of formulating and using a drilling mud with fragile gels
10/09/2007	US7278484 Techniques and systems associated with perforation and the installation of downhole tools
10/09/2007	US7278481 Method and system for producing an oil and gas mixture through a well
10/09/2007	US7278479 Downhole cable protection device
10/09/2007	CA2566200C Perforating gun firing head with vented block for holding detonator
10/09/2007	CA2360694C Perforating charge case
10/09/2007	CA2240140C Wye block having a rotary guide incorporated therein
10/04/2007	WO2007112254A2 Water injection systems and methods
10/04/2007	WO2007112199A2 Enhanced hydrocarbon recovery by vaporizing solvents in oil sand formations
10/04/2007	WO2007112175A2 Hydraulic fracture initiation and propagation control in unconsolidated and weakly cemented sediments
10/04/2007	WO2007111533A1 Method for determining a steam dryness factor
10/04/2007	WO2007110562A1 Method of fracturing a coalbed gas reservoir
10/04/2007	WO2007075855A3 Concentric coiled tubing annular fracturing string
10/04/2007	WO2007067264A3 Determination of well shut-in time for curing resin-coated proppant particles
10/04/2007	WO2007047481A3 Amino acid, carbohydrate and acrylamide polymers useful as flocculants in agricultural and industrial settings
10/04/2007	WO2007024263A3 Portable electrocrushing drill
10/04/2007	US20070231158 Artificial lift with additional gas assist
10/04/2007	US20070227740 Flying Lead Connector and Method for Making Subsea Connections
10/04/2007	US20070227737 Method and apparatus for downhole artificial lift system protection
10/04/2007	US20070227735 System and Method for Well Treatment and Perforating Operations
10/04/2007	US20070227732 Method of fracturing a coalbed gas reservoir
10/04/2007	US20070227731 System and Method for Controlling Wellbore Pressure During Gravel Packing Operations
10/04/2007	US20070227729 Apparatus and method for extracting petroleum from underground sites using reformed gases
10/04/2007	US20070227727 Completion System Having a Sand Control Assembly, An Inductive Coupler, and a Sensor Proximate to the Sand Control Assembly
10/04/2007	US20070227726 Slip on screen with expanded base pipe
10/04/2007	US20070227722 Automated flowback and information system
10/04/2007	CA2647973A1 Enhanced hydrocarbon recovery by vaporizing solvents in oil sand formations
10/04/2007	CA2646698A1 Method of fracturing a coalbed gas reservoir
10/04/2007	CA2645828A1 Composition and method for producing a pumpable hydrocarbon hydrate slurry at high water-cut
10/04/2007	CA2644596A1 Method for determining a steam dryness factor
10/03/2007	EP1840325A1 Method and apparatus to cement a perforated casing
10/03/2007	EP1840324A1 Method and apparatus for selective treatment of a perforated casing
10/03/2007	EP1838946A1 A sealing element and a coupling device provided with such a sealing element
10/03/2007	EP1838804A1 Methods for controlling migration of particulates in a subterranean formation
10/03/2007	EP1838522A2 Thermoset nanocomposite particles, processing for their production, and their use in oil and natural gas drilling applications
10/03/2007	EP1532347B1 Closed loop multiphase underbalanced drilling process
10/03/2007	CN200955491Y Air-lock-resisting low-resistance liquid drainage pump
10/03/2007	CN200955490Y Efficient bionical-face sealing valve oil pump
10/03/2007	CN200955487Y Butterfly-valve equi-diameter anti-sand-block oil pump
10/03/2007	CN200955384Y Oil-gas separator for electric submersible pump
10/03/2007	CN200955383Y Deep water well filtering-water device
10/03/2007	CN200955382Y Balance-weight-body track apparatus for pumping unit and pumping unit
10/03/2007	CN200955381Y Balance-beam pumping-unit cross beam
10/03/2007	CN200955377Y Flatboard valve type ball injector
10/03/2007	CN200955369Y Large-full-bore crack well-head protector
10/03/2007	CN200955366Y Pulse oil-production production-increasing device of strong swabbing following pump
10/03/2007	CN200955363Y 抽油杆自动转动装置 Sucker automatic rotating device
10/03/2007	CN101046147A High efficiency heat isolating oil pipe
10/03/2007	CN101046146A Simulating experiment equipment for 2D exploitation of natural gas hydrate
10/03/2007	CN101046145A Pumping unit
10/03/2007	CN101046144A Method of raising motor efficiency in pumping unit and energy balance device therefor
10/03/2007	CN100340738C Water seal stopping leak process for underground gasification furnace
10/03/2007	CN100340737C Balance weight protector for oil pumping unit
10/03/2007	CN100340736C Boring device for borehole wall
10/02/2007	US7276466 Compositions and methods for reducing the viscosity of a fluid
10/02/2007	US7275602 Methods for expanding tubular strings and isolating subterranean zones
10/02/2007	US7275601 Radial expansion of tubular members
10/02/2007	US7275600 Apparatus and method for expanding tubular members
10/02/2007	US7275599 Positive pressure gas jacket for a natural gas pipeline
10/02/2007	US7275598 Uncollapsed expandable wellbore junction
10/02/2007	US7275597 Remote power management method and system in a downhole network
10/02/2007	US7275596 Method of using degradable fiber systems for stimulation
10/02/2007	US7275595 Method and apparatus to isolate fluids during gravel pack operations
10/02/2007	US7275592 Oil well pump apparatus
10/02/2007	US7275590 Submersible pump
10/02/2007	CA2470818C Method and apparatus for supporting a tubular in a bore
10/02/2007	CA2436035C Mesh screen apparatus and method of manufacture
10/02/2007	CA2367231C Perforating gun
10/02/2007	CA2354453C Impermeable and composite perforating gun assembly components

1 ... 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 ... 642