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)
03/2014
03/20/2014US20140076571 Downhole tools having non-toxic degradable elements
03/20/2014US20140076570 Methods of Treating Long-Interval and High-Contrast Permeability Subterranean Formations with Diverting Fluids
03/20/2014US20140076566 Use of Underground Access to Improve Steam Distribution in SAGD Operations
03/20/2014US20140076565 Thermally-Activated, High Temperature Particulate Suspending Agents and Methods Relating Thereto
03/20/2014US20140076564 Perforation Gun String Energy Propagation Management System and Methods
03/20/2014US20140076559 Methods of Treating a Subterranean Formation with Stress-Activated Resins
03/20/2014US20140076558 Methods and Compositions for Treating Proppant to Prevent Flow-Back
03/20/2014US20140076557 Transverse Well Perforating
03/20/2014US20140076556 Effective solvent extraction system incorporating electromagnetic heating
03/20/2014US20140076555 Method and system of optimized steam-assisted gravity drainage with oxygen ("sagdoxo") for oil recovery
03/20/2014US20140076554 Method for improved gravity drainage in a hydrocarbon formation
03/20/2014US20140076553 Upstream-downstream integrated process for the upgrading of a heavy crude oil with capture of co2 and relative plant for the embodiment thereof
03/20/2014US20140076552 Treatment fluids comprising magnetic surfactants and methods relating thereto
03/20/2014US20140076540 Expandable Screen by Spring Force
03/20/2014US20140076530 Facility with wells having multiple horizontal galleries for lowering water tables
03/20/2014US20140076132 Extended Jet Perforating Device
03/20/2014CA2790475A1 Method for improved gravity drainage in a hydrocarbon formation
03/19/2014EP2708696A2 Gas lift valve with mixed bellows and floating constant volume fluid chamber
03/19/2014EP2708694A1 Drop device
03/19/2014EP2707571A2 Enhanced foam stability applications and methods
03/19/2014EP2707570A1 Pressure and flow control in drilling operations
03/19/2014EP2707567A1 Device for attaching a first element to a retaining flange of a second element, associated installation and method
03/19/2014CN203488170U Offshore oil underwater exploration system
03/19/2014CN203488163U Gas-water separator with self-cooling function
03/19/2014CN203488162U Gas injection device in underground gasification system
03/19/2014CN203488161U Carbon dioxide injection end metering system allowing improvement of oil recovery factor
03/19/2014CN203488160U Layered technological tubular column
03/19/2014CN203488159U Novel three-dimensional sand control screen
03/19/2014CN203488158U Combined manifold skid for offshore platform
03/19/2014CN203488157U Offshore oil underwater operation system
03/19/2014CN203488156U Offshore oil underwater operation system
03/19/2014CN203488155U Gathering and transporting device for oil transfer station of oil filed
03/19/2014CN203488154U Portable oil well casing gas recovery device
03/19/2014CN203488153U Mould pressed spliced pumping unit protective cover
03/19/2014CN203488152U Oil-well bushing constant-pressure deflation recovery device with sampling and anti-blocking functions
03/19/2014CN203488110U Layered sand blocking simultaneous-extraction tubular column
03/19/2014CN103649463A System and method for performing wellbore stimulation operations
03/19/2014CN103649459A Enhanced foam stability applications and methods
03/19/2014CN103649458A Diffuser bump vane profile
03/19/2014CN103649457A Downhole hydraulic pump
03/19/2014CN103649453A Gas lift kickover system
03/19/2014CN103643934A Curved surface siding way slag separator
03/19/2014CN103643933A Water-slag separator
03/19/2014CN103643932A Underground gasification isotopic tracing method
03/19/2014CN103643931A Completion and fracture integrated pipe column of offshore openhole horizontal well and construction method of pipe column
03/19/2014CN103643930A Heat-energy thickened oil viscosity reduction method
03/19/2014CN103643929A Asphalt particle profile control effect predicting device and method for three-dimensional cementation model
03/19/2014CN103643928A Step-by-step deep profile control method based on pressure field and flow velocity field distribution
03/19/2014CN103643927A Linear water distribution device for oil field water injection well
03/19/2014CN103643926A Intelligent flow monitoring device of water injection well
03/19/2014CN103643925A Method performing pressure measurement on water-isolating pipe
03/19/2014CN103643924A Energy-saving device of pumping unit
03/19/2014CN103643923A Secondary speed reducer of ultralow stroke frequency pumping unit
03/19/2014CN103643922A Short intelligent-control hoist type lifting oil extraction system with ultra long stroke and working method
03/19/2014CN103643921A Gas balance type hydraulic twin-well pumping unit and using method thereof
03/19/2014CN103643920A Unconventional gas extraction visual simulator and extraction simulation method thereof
03/19/2014CN103643919A Continuous exploratory well oil testing and flowing device
03/19/2014CN103643893A Sieve tube drilling process for outburst coal seam section in underground coal mine
03/19/2014CN103642474A Low damage rubber plug thickening agent used for hydraulic fracturing, rubber plug composition and application thereof
03/19/2014CN103410487B Thickened oil thermal recovery decompression method
03/19/2014CN102425405B Stratified pressure testing method of eccentric water distribution well in oilfield
03/19/2014CN102359360B Stepless speed regulation type oil pump
03/19/2014CN102052066B Dynamic seal pressing method and device for improving complex perforation pressing crack effect
03/19/2014CN101611216B Preconditioning an oilfield reservoir
03/18/2014US8672041 Convertible downhole devices
03/18/2014US8672038 Retrievable subsea bridge tree assembly and method
03/18/2014US8672033 Method of improving performance and efficiency of wellbore pump for hydrocarbon production
03/18/2014US8672032 Split stream oilfield pumping system utilizing recycled, high reid vapor pressure fluid
03/18/2014US8672031 Perforating with wired drill pipe
03/18/2014US8672027 In situ fluid reservoir stimulation process
03/18/2014US8672023 Apparatus and method for completing wells using slurry containing a shape-memory material particles
03/18/2014CA2821264C Controlling flow of steam into and/or out of a wellbore
03/18/2014CA2742365C Well flow control systems and methods
03/18/2014CA2727422C Wellbore servicing compositions comprising a density segregation inhibiting composite and methods of making and using same
03/18/2014CA2721496C Methods and systems for orienting in a bore
03/18/2014CA2713019C Gridless geological modeling
03/18/2014CA2700947C Method and apparatus for freeze-thaw well stimulation using orificed refrigeration tubing
03/18/2014CA2693566C System for monitoring an electrical submersible pump
03/18/2014CA2678262C Process for recovering heavy oil
03/18/2014CA2664321C Combined development of oil shale by in situ heating with a deeper hydrocarbon resource
03/18/2014CA2584712C Methods of improving heavy oil production
03/14/2014CA2826593A1 Hydraulic oil well pumping system, and method for pumping hydrocarbon fluids from a wellbore
03/13/2014WO2014039632A2 Method and apparatus for treating a well
03/13/2014WO2014039553A1 Direct steam generation co2 output control
03/13/2014WO2014039467A1 Method for increasing density of brine phase in oil-based and synthetic-based wellbore fluids
03/13/2014WO2014039463A1 Model-driven surveillance and diagnostics
03/13/2014WO2014039435A1 Method and apparatus for securing and using hyrdajetting tools
03/13/2014WO2014039216A1 Well treatment methods and systems
03/13/2014WO2014038983A2 Method for developing oil and gas fields using high-power laser radiation for more complete oil and gas extraction
03/13/2014WO2014038981A1 Expandable filter
03/13/2014WO2014037753A2 Wellbore esp system with improved magnetic gear
03/13/2014WO2014037748A2 Rotary fluid transfer apparatus and associated methods
03/13/2014WO2014037744A2 Rotary fluid transfer apparatus and associated methods
03/13/2014WO2014037569A2 A containment system and a method for using such containment system
03/13/2014WO2014037567A2 A containment system
03/13/2014WO2014037141A2 A containment system and a method for using said containment system
03/13/2014WO2014036742A1 Method for transverse fracturing of a subterranean formation
03/13/2014WO2014003699A3 Shock attenuator for gun system
03/13/2014WO2013122588A3 Fluid bypass for inflow control device tube
03/13/2014WO2013112271A3 Controlled geyser well
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