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)
11/2013
11/21/2013WO2013173233A1 Dendritic surfactants and extended surfactants for drilling fluid formulations
11/21/2013WO2013172857A1 Multi-zone fracturing completion
11/21/2013WO2013172416A1 Production method and production system for natural gas
11/21/2013WO2013171856A1 Processing method and processing device for natural gas
11/21/2013WO2013171476A1 Filtering contaminants from fluid
11/21/2013WO2013170375A1 Inert gas supply equipment for oil and gas well operations
11/21/2013WO2013170356A1 Steam assisted gravity drainage system and method
11/21/2013WO2013136244A3 Hydraulic mechanical pumping unit with rocking effect
11/21/2013WO2013130166A4 A structure for gunpowder charge in multi-frac composite perforating devices
11/21/2013WO2013124336A3 Offshore processing method and system
11/21/2013WO2013093626A3 Amine adducts, derivatives thereof, methods for making such adducts and derivatives, and methods for using such adducts and derivatives
11/21/2013WO2013028753A3 Method of hydrocarbon resource recovery including actuator operated positioning of an rf applicator and related apparatus
11/21/2013WO2012168728A3 Tubular assembly and method of deploying a downhole device using a tubular assembly
11/21/2013US20130306329 Method and wellbore system
11/21/2013US20130306326 Low Profile Rod Pumping Unit with Pneumatic Counterbalance for the Active Control of the Rod String
11/21/2013US20130306324 Systems and methods for operating a plurality of wells through a single bore
11/21/2013US20130306322 System and process for extracting oil and gas by hydraulic fracturing
11/21/2013US20130306321 Liquefied industrial gas based solution in hydraulic fracturing
11/21/2013US20130306320 Composition and method for treating carbonate reservoirs
11/21/2013US20130306319 Hydraulic Pulse Valve With Improved Pulse Control
11/21/2013US20130306317 Degradable polymer and legume particulates for well treatment
11/21/2013US20130306315 Double Hydraulic Fracturing Methods
11/21/2013US20130306314 Methods for Protecting a Hydrocarbon-Producing Zone of a Subterranean Formation Using a Relative Permeability Modifier
11/21/2013US20130306313 Washpipe isolation valve and associated systems and methods
11/21/2013US20130306312 Process, method, and system for removing mercury from fluids
11/21/2013US20130306311 Process, method, and system for removing mercury from fluids
11/21/2013US20130306310 Pipeline reaction for removing heavy metals from produced fluids
11/21/2013US20130306307 Methods And Apparatus To Sample Heavy Oil In A Subterranean Formation
11/21/2013US20130306304 Fracturing fluid deflecting and screening insert
11/21/2013US20130306303 Integrated driving head for progressive cavity pumps used in oil extraction
11/21/2013CA2808565A1 Linear electric motor for artificial lift system
11/20/2013EP2663734A2 Method and system for radially expanding a tubular element and directional drilling
11/20/2013EP2663733A2 Autonomous valve
11/20/2013EP2663732A1 Autonomous valve
11/20/2013EP2663608A2 Methods for treating siliciclastic hydrocarbon-bearing formations with fluorinated amine oxides
11/20/2013EP2433999B1 Film coated particles for oil exploitation and oil exploitation method using the same
11/20/2013EP2109584B1 Method for reducing the emission of green house gases into the atmosphere
11/20/2013EP1950374B1 Inflow control devices for sand control screens
11/20/2013CN203297087U Efficient protective oil pumping device
11/20/2013CN203296802U Gas electromagnetism exciting device
11/20/2013CN203296767U Novel testing device for multi-layer fracturing
11/20/2013CN203296764U Integrated gas anchor for oil extraction
11/20/2013CN203296763U Downhole efficient gas-liquid separator
11/20/2013CN203296762U Gas-liquid separation device
11/20/2013CN203296761U Fracture sand blower
11/20/2013CN203296760U Fine control water injecting device
11/20/2013CN203296759U Pipe column device for perforating and testing of HTHP ultra-deep well
11/20/2013CN203296758U Novel oil field oil extraction pipe string
11/20/2013CN203296757U Outer rotor motor pumping unit
11/20/2013CN203296756U Torque-variable balance energy-saving device of pumping unit walking beam
11/20/2013CN203296743U Double-acting temperature-sensitive steam injection packer
11/20/2013CN203296712U Safety joint
11/20/2013CN103403351A Short length pump having brine resistant seal and rotating wrist pin and related methods
11/20/2013CN103403294A Dispersing separated hydrocarbon gas into separated oil during surface well testing for improved oil mobility
11/20/2013CN103403292A A method for producing hydrocarbons and installation for application thereof
11/20/2013CN103403291A Zero emission steam generation process
11/20/2013CN103403142A On-board recovery and storage of CO2 from motor vehicle exhaust gases
11/20/2013CN103398286A Device and method for increasing super-cooling degree of liquid carbon dioxide storage tank
11/20/2013CN103397900A Porous collaborative fracturing and extracting integrated gas extraction method
11/20/2013CN103397873A Well head gas purifying device for natural gas field
11/20/2013CN103397872A Shaft simulation device of multi-branch flow guide moderate sand outlet well
11/20/2013CN103397871A Dry-type Christmas tree based ultra-deepwater oil and gas development system and mounting method thereof
11/20/2013CN103397870A Tower type oil pumping unit
11/20/2013CN103397869A Chain pulley type pumping unit
11/20/2013CN103397868A Skid-mounted integrated process device for coal bed gas drainage and production wells and method for applying skid-mounted integrated process device
11/20/2013CN103397867A Balance adjustment device for pumping units
11/20/2013CN103397866A Tower type hydraulic pumping unit and application method thereof
11/20/2013CN103396776A Self-generating foam blocking removal agent for oil-water well and blocking removal process
11/20/2013CN103395481A Production and mooring system for sea floating type oil extraction platform and operating method thereof
11/20/2013CN102383828B Refection reducing and outburst eliminating method for deep-hole hydraulic fracture driving gas shallow hole extraction
11/20/2013CN102128047B Gas-slag separation and recovering system for drilling construction
11/20/2013CN102094600B Hydraulic pumping device with energy recovery function
11/20/2013CN101975044B Mechanical reversing and variable-diameter tower frame type pumping unit
11/20/2013CN101960086B A method and device for making lateral openings out of a wellbore
11/20/2013CN101952539B Systems and methods for improved positioning of pads
11/20/2013CN101842549B Systems and methods for producing oil and/or gas
11/20/2013CN101705806B Double-balance oil extractor
11/20/2013CN101501295B Methods for producing oil and/or gas
11/20/2013CN101395340B Liquified petroleum gas fracturing system
11/19/2013US8589136 Methods and systems for mitigating drilling vibrations
11/19/2013US8586511 Scale inhibiting well treatment
11/19/2013US8584772 Shaped charges for creating enhanced perforation tunnel in a well formation
11/19/2013US8584763 Managing pressurized fluid in a downhole tool
11/19/2013US8584761 Compact cable suspended pumping system for dewatering gas wells
11/19/2013US8584759 Hydraulic fracture diverter apparatus and method thereof
11/19/2013US8584758 Apparatus for fracturing of wells
11/19/2013US8584757 Method and composition for treating fluids before injection into subterranean zones
11/19/2013US8584755 Method for hydraulic fracturing of subterranean formation
11/19/2013US8584754 Delayed-tackifier coated particulates and methods relating thereto
11/19/2013US8584753 Method and apparatus for creating an annular barrier in a subterranean wellbore
11/19/2013US8584752 Process for dispersing nanocatalysts into petroleum-bearing formations
11/19/2013US8584751 Process for mineral oil production using surfactant mixtures
11/19/2013US8584750 Process for tertiary mineral oil production using surfactant mixtures
11/19/2013US8584749 Systems and methods for dual reinjection
11/19/2013US8584747 Enhancing well fluid recovery
11/19/2013CA2769774C Multiple well treatment fluid distribution and control system and method
11/19/2013CA2768319C Fines migration control at their sources in water flooding reservoirs
11/19/2013CA2744835C Adjustable venturi valve
11/19/2013CA2724402C Mutual solvent-soluble and/or alcohol blends-soluble particles for viscoelastic surfactant fluids
11/19/2013CA2714872C Downhole oilfield tubulars having liners with diffusion barrier layer
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