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)
02/2014
02/19/2014CN203441446U 压力帽 Pressure cap
02/19/2014CN203441445U Novel oil pumping unit
02/19/2014CN203441444U Balance weight moving tool of oil pumping unit
02/19/2014CN203441443U Chain oil pumping unit
02/19/2014CN203441442U Natural gas hydrate simulation experiment set
02/19/2014CN203441441U Automatic control recoverer for casing gas of oil pumping well
02/19/2014CN203441440U Thickened oil recovery system for horizontal well
02/19/2014CN203441439U Flexible sucker rod pumping unit
02/19/2014CN203441435U Steam distributing valve with capability of ball injection for twice
02/19/2014CN203441396U Rod-pumped well braided-cable anti-twist movable joint device
02/19/2014CN203441388U Tubing head of ocean oilfield exploitation equipment
02/19/2014CN203441386U Injection-production integrated production joint capable of performing automatic switch for thickened oil thermal production well
02/19/2014CN203439237U Production and mooring system for sea floating type oil extraction platform
02/19/2014CN103597168A Subsea containment cap adapters
02/19/2014CN103590824A Productivity calculation method for tight gas horizontal wells modified by multi-stage fracturing
02/19/2014CN103590807A Method for determining heavy oil thermal recovery steam chamber state
02/19/2014CN103590805A Broaching method of coal seam channel
02/19/2014CN103590804A Temporary plugging and energizing treatment method for heavy oil steam-stimulated wells
02/19/2014CN103590803A Solid acid fracturing method
02/19/2014CN103590802A Horizontal well staged fracturing device and method
02/19/2014CN103590801A Coal bed methane horizontal well nitrogen foam fracturing mining technology
02/19/2014CN103590800A Multi-level pitch fracturing sliding sleeve capable of fishing ball seats
02/19/2014CN103590799A Three-dimensional fracturing design method for horizontal well in compact sandstone reservoir
02/19/2014CN103590798A Determining method and calculating device for ultra-thick oil steam-injection oil extracting and soaking time
02/19/2014CN103590797A Pressurizing device with interchangeable core and injection allocation method of core change and parameter adjustment therefor
02/19/2014CN103590796A Constant proportion dropping-fishing-free separated layer water injection technique tubular pipe and dropping-fishing-free quantitative water distributors
02/19/2014CN103590795A Method for integrating natural gas recovery efficiency increasing through CO2 waste gas reinjection with CO2 geological storage
02/19/2014CN103590794A Safe and rapid gun assembling support for perforating operation
02/19/2014CN103590793A Signal detection processing circuit for perforation ignition control circuit
02/19/2014CN103590792A Gun perforation bullet
02/19/2014CN103590791A Horizontal well perforating device
02/19/2014CN103590790A Simulating perforating bullet, composite perforator and perforating operation method
02/19/2014CN103590789A General linear used for oil pipe perforating bullet in oil-gas well and preparation method of linear
02/19/2014CN103590788A Multielement thermal fluid oil production technology with adjustable components
02/19/2014CN103590787A Zero-impact total-balance duplex energy-saving oil pumping unit
02/19/2014CN103590748A Multifunctional water jet nozzle and using method thereof
02/19/2014CN103589414A Zirconium dispersoid gel complex oil displacing system and preparing method thereof
02/19/2014CN103589411A Block material for temporary blocking treatment and energy increment of thickened oil steam huff-puff well as well as preparation method and application of block material
02/19/2014CN102634332B Blockage remover for decompression and steam injection in high clay content sandstone oil reservoir
02/19/2014CN102617800B Delay intumescent profile control blocking agent and application method thereof
02/19/2014CN102418503B Branched well screen pipe anchoring compensation device
02/19/2014CN102305055B Air foam flooding shaft bottom foaming process pipe column
02/19/2014CN102287360B Method for controlling liquid nitrogen pump in fracturing work
02/19/2014CN102287174B Cracking viscosity reducing method and device for oil field ground collected and conveyed salt-containing thick oil
02/19/2014CN102213087B Throughout and displacement combined microbial oil recovery method
02/19/2014CN102182442B Method for preparing radioisotope tracer
02/19/2014CN101970794B Methods for improving the productivity of oil producing wells
02/19/2014CN101787870B Multi-cylinder combined type full-balanced hydraulic oil pumping unit
02/19/2014CN101787869B Double-cylinder symmetrical type fully balanced hydraulic oil pumping unit
02/19/2014CN101787868B Single-cylinder bidirectional full-balanced hydraulic oil extractor
02/19/2014CN101680294B Utilization of low btu gas generated during in situ heating of organic-rich rock
02/18/2014US8653008 Well treatment
02/18/2014US8651192 Coiled tubing bottom hole assembly with packer and anchor assembly
02/18/2014US8651191 Slim hole production system and method
02/18/2014US8651187 Method and apparatus to treat well stimulation fluids in-situ
02/18/2014US8651185 Reducing or stopping the uncontrolled flow of fluid such as oil from a well
02/18/2014US8651184 Down-hole sand and solids separator utilized in producing hydrocarbons
02/18/2014US8651181 Downhole filter tool
02/18/2014CA2760423C Cable suspended pumping system
02/18/2014CA2760223C Electric submersible pumping system for dewatering gas wells
02/18/2014CA2721705C Method for production of high purity distillate from produced water for generation of high pressure steam
02/18/2014CA2708475C Invert silicate fluids for wellbore strengthening
02/18/2014CA2662295C Hydrocarbon recovery process
02/18/2014CA2605724C Methods and systems for producing fluid from an in situ conversion process
02/18/2014CA2457700C Mutual solvent for improved oil and gas permeability
02/13/2014WO2014025863A1 System for producing and separating oil
02/13/2014WO2014025847A1 Process for producing and separating oil
02/13/2014WO2014025835A2 Wellbore desanding system
02/13/2014WO2014025645A1 Wellbore servicing system and methods of use
02/13/2014WO2014025567A1 A method and apparatus for drilling and completion fluid separation
02/13/2014WO2014025496A1 Electromagnetic heating of cnt and cnt based derivatives dispersions and solutions or cnt and cnt based derivatives containing coatings or metals for oil and gas equipment for remediation or prevention of solids formation in wellbores
02/13/2014WO2014025279A1 Downhole heterogeneous proppant placement
02/13/2014WO2014024827A1 Ball sealer for hydrocarbon resource collection as well as manufacturing method therefor and down-hole treatment method using same
02/13/2014WO2014023936A1 Recovery of oil
02/13/2014WO2014023743A2 Subsea processing
02/13/2014WO2014022940A1 Swing chamber pump (scp)
02/13/2014WO2013016734A8 System and method for performing wellbore fracture operations
02/13/2014US20140045732 Mobilization of heavy oil
02/13/2014US20140044967 System for processing and producing an aggregate
02/13/2014US20140041880 Hybrid expansion cone
02/13/2014US20140041877 Well Treatment Fluids Containing An Ylide Or A Vitamin B And Methods Of Using The Same
02/13/2014US20140041876 Downhole Tools and Methods for Selectively Accessing a Tubular Annulus of a Wellbore
02/13/2014US20140041875 Alkylaryl sulphonate compositions and use thereof for the enhanced recovery of hydrocarbons
02/13/2014US20140041874 Wellbore Servicing System and Methods of Use
02/13/2014US20140041872 Enhancing Production of Clathrates by Use of Thermosyphons
02/13/2014US20140041871 Initiating Production of Clathrates by Use of Thermosyphons
02/13/2014US20140041869 Method and System for Servicing a Wellbore
02/13/2014US20140041867 Enhanced oil recovery initiated with zero emission in-situ combustion
02/13/2014US20140041863 Dual barrier side pocket mandrel with gauge
02/13/2014US20140041856 System for producing and separating oil
02/13/2014US20140041852 Steam distribution apparatus and method for enhanced oil recovery of viscous oil
02/13/2014US20140041731 Autonomous fluid control assembly having a movable, density-driven diverter for directing fluid flow in a fluid control system
02/13/2014US20140041515 Well Perforating Apparatus
02/12/2014EP2694778A2 Injection device
02/12/2014EP2694777A2 Selectable, internally oriented and/or integrally transportable explosive assemblies
02/12/2014EP2694773A1 Wellbore pressure control with optimized pressure drilling
02/12/2014EP2694676A1 Fluid identification system and production and use thereof
02/12/2014EP2694616A2 Method and compositions for enhanced oil recovery
02/12/2014EP2694615A2 Biomass-based oil field chemicals
02/12/2014CN203430499U Well fracturing parameter intelligent monitoring system
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