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)
10/2009
10/20/2009US7604052 Compositions produced using an in situ heat treatment process
10/20/2009US7604051 Method and device for separation of particles from injection water
10/20/2009US7603758 Method of coupling a tubular member
10/20/2009CA2635981C Methods and compositions for enhancing consolidation strength of proppant in subterranean fractures
10/20/2009CA2570421C Viscosified treatment fluids and associated methods of use
10/20/2009CA2569917C Perforating charge case
10/20/2009CA2569704C Perforating charge case
10/20/2009CA2567842C A method and a device for expanding a body under overpressure
10/20/2009CA2560611C Methods of isolating hydrajet stimulated zones
10/20/2009CA2558053C Methods of preparing and using coated particulates
10/20/2009CA2522918C Apparatus and method for cutting a tubular
10/20/2009CA2504844C Hydraulic fracturing method
10/20/2009CA2430884C Re-enterable gravel pack system with inflate packer
10/20/2009CA2402163C Tracer injection in a production well
10/20/2009CA2401681C Controlled downhole chemical injection
10/20/2009CA2354900C Apparatus and methods for isolating a wellbore junction
10/15/2009WO2009126663A2 Oil recovery by sequential waterflooding with oil reinjection and oil relocation
10/15/2009WO2009126520A2 Multi-cycle isolation valve and mechanical barrier
10/15/2009WO2009126376A2 System and method for drilling multilateral wells using magnetic ranging while drilling
10/15/2009WO2009126057A1 Method of producing high permeability hydraulic fractures (variants) and system used for method implementation
10/15/2009WO2009125293A2 Method and system for the extinction of an underwater well for the extraction of hydrocarbons under uncontrolled fluid discharge conditions
10/15/2009WO2009125164A1 Micro-crosslinked gels and associated methods
10/15/2009WO2009124334A1 Riser support
10/15/2009WO2009094307A3 Large inside diameter completion with position indication
10/15/2009WO2009089232A3 Particles in oil for viscoelastic surfactant gelled fluids
10/15/2009WO2009077715A3 Stimulation through fracturing while drilling
10/15/2009US20090255732 Method and apparatus for lateral well drilling with enhanced capability for clearing cuttings and other particles
10/15/2009US20090255689 Method of radially expanding a tubular element
10/15/2009US20090255686 Method for providing a temporary barrier in a flow pathway
10/15/2009US20090255684 System and method for thru tubing deepening of gas lift
10/15/2009US20090255682 Large Bore Vertical Tree
10/15/2009US20090255678 Water Treatment by Chemical-Mechanical Process
10/15/2009US20090255677 Micro-Crosslinked Gels and Associated Methods
10/15/2009US20090255676 Method and apparatus for lateral well drilling with biased length adjusting casing cutter
10/15/2009US20090255673 Process for Recovering Heavy Oil Utilizing One or More Membranes
10/15/2009US20090255670 Method of Monitoring Underground Diffusion of Carbon Dioxide
10/15/2009US20090255669 Tool and method for determining formation parameter
10/15/2009US20090255668 Clean Fluid Systems for Partial Monolayer Fracturing
10/15/2009US20090255665 Dual function cleaning tool
10/15/2009US20090255661 System and method for drilling multilateral wells using magnetic ranging while drilling
10/15/2009CA2792567A1 Clean fluid systems for partial monolayer fracturing
10/15/2009CA2721342A1 System and method for drilling multilateral wells using magnetic ranging while drilling
10/15/2009CA2718666A1 Oil recovery by sequential waterflooding with oil reinjection and oil relocation
10/14/2009EP2108782A2 Welbore screen
10/14/2009EP1075584B1 Extended reach tie-back system
10/14/2009CN201326408Y 2*** inch gas well downhole choke
10/14/2009CN201326407Y Pressure bearing type sieve tube for flushing well
10/14/2009CN201326406Y Touch screen control device for vertical oil pumping unit
10/14/2009CN201326405Y Movable switch-type sand-preventing underground throttle
10/14/2009CN101558216A Enhanced shale oil production by in situ heating using hydraulically fractured producing wells
10/14/2009CN101555797A Extraction device for undersea gas hydrate and extraction method thereof
10/14/2009CN101555788A Double-detection probe measuring and adjusting instrument and detection method thereof
10/14/2009CN101555787A Improved steam drive oil production method
10/14/2009CN101555786A Improved natural gas drive oil production method
10/14/2009CN101555785A Improved carbon dioxide drive oil production method
10/14/2009CN101555784A Clean natural gas exploiting method
10/14/2009CN101555783A Device for combined mining of methane, volatile matters and carbon in coal field or oil gas in oil field and mining method thereof
10/14/2009CN101555782A Tower frame type numerical control oil pumping unit
10/14/2009CN101555781A Pin tooth transmission long-stroke oil extractor
10/14/2009CN101555780A Self-operated drop instillator
10/14/2009CN101555404A Environment-friendly low-damage solidfree well control fluid and applications thereof
10/14/2009CN100549362C Method and device for installing and connecting a sub-sea riser
10/14/2009CN100549356C Portable pump well mouth manipulation ladder
10/14/2009CN100549126C Pad acid liquid and pad acid sand fracturing method
10/13/2009US7600569 Method for installing and connecting a sub-sea riser
10/13/2009US7600568 Safety vent valve
10/13/2009US7600567 Desalination method
10/13/2009US7600566 Collar locator for slick pump
10/13/2009US7600562 Non-explosive tubing perforator and method of perforating
10/13/2009CA2601268C Fracturing head with replaceable inserts for improved wear resistance and method of refurbishing same
10/13/2009CA2582679C Methods and devices for treating multiple-interval well bores
10/13/2009CA2579854C Oilfield enhanced in situ combustion process
10/13/2009CA2569989C Perforating charge case
10/13/2009CA2509780C A method for fracture stimulating well bores
10/13/2009CA2490615C Downhole tool
10/13/2009CA2463774C Slickline power control interface
10/13/2009CA2416116C Method and apparatus for formation damage removal
10/08/2009WO2009124029A1 Proppants containing dispersed piezoelectric or magnetostrictive fillers or mixtures thereof, to enable proppant tracking and monitoring in a downhole environment
10/08/2009WO2009123491A1 Additive to hydraulic fracturing fluid and method of using the same
10/08/2009WO2009123472A2 System and method for recompletion of old wells
10/08/2009WO2009123464A1 A valve for a production tubing, and also a production tubing for recovery of oil and gas
10/08/2009WO2009122203A1 Method of creating an underwater cutting zone, and related plugging devices and methods
10/08/2009WO2009122202A1 Abrasive cutting fluids
10/08/2009WO2009122134A1 Fluid treatment system
10/08/2009WO2009089528A3 Subsea drilling system and method for operating the drilling system
10/08/2009WO2009089524A3 Method and device for subsea wire line drilling
10/08/2009WO2009089433A3 Electric submersible pump (esp) having a motor with mechanically locked stator laminations
10/08/2009WO2009085955A3 Conductivity enhancing structures for use with proppants in oil and gas wells
10/08/2009WO2008050127A9 Electrical connector with pressure seal
10/08/2009US20090250225 Control of downhole devices in a wellbore
10/08/2009US20090250223 Ballistically Compatible Backpressure Valve
10/08/2009US20090250221 Method of supplying a powdered chemical composition to a wellsite
10/08/2009US20090250220 Internal pipe slot tool
10/08/2009US20090250216 Proppants containing dispersed piezoelectric or magnetostrictive fillers or mixtures thereof, to enable proppant tracking and monitoring in a downhole environment
10/08/2009US20090250215 Method for induced production of petroleum by means of horizontal fractures
10/08/2009US20090250210 Device and Method For Gas Lock Detection In An Electrical Submersible Pump Assembly
10/08/2009US20090250204 Apparatus and method for in-situ electromagnetic extraction and production of hydrocarbons from geological formations
10/08/2009CA2718832A1 System and method for recompletion of old wells
10/07/2009EP2106494A2 Tractor communication/control and select fire perforating switch
10/07/2009EP2004953B1 Method for optimising the production of a cluster of wells
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