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)
05/2012
05/30/2012CN202250020U Skid-mounted gas-liquid airtight separation device for cluster well field oil test and production
05/30/2012CN202250019U Novel elevation angle six-way joint
05/30/2012CN202250018U Underground separate-layer fracturing technical tubular column and drillable packer thereof
05/30/2012CN202250017U Feeding tool for horizontal well
05/30/2012CN202250016U Hydrojet staged fracturing tool
05/30/2012CN202250015U Segmented fracturing device of slide sleeve packer
05/30/2012CN202250014U Dual-packing single-clamping staged fracturing tool
05/30/2012CN202250013U Hot water flooding pipe string for directional well in oil field
05/30/2012CN202250012U Thermal recovery tubular column of horizontal well
05/30/2012CN202250011U High-temperature and high-pressure rectangular sand-packed model for steam overlap research
05/30/2012CN202250010U Injection-production integrated double-tube thermal recovery wellhead device
05/30/2012CN202250009U Polymer microsphere injection device
05/30/2012CN202250008U Profile-control injection pump set for diesel oil generator
05/30/2012CN202250007U Electromagnetically driven wellhead photoelectric remote sensing self-control solid drug delivery system
05/30/2012CN202250006U Intelligent medicine adding device
05/30/2012CN202250005U Depressurization and injection-increasing device for water injection well
05/30/2012CN202250004U Closed layered water injection process pipe column
05/30/2012CN202250003U High-pressure shunting water distributor
05/30/2012CN202250002U High pressure skid-mounted integrated water injection device for oil field
05/30/2012CN202250001U Bridge type eccentric water distributor
05/30/2012CN202250000U Cone-shaped internal adjusting water faucet
05/30/2012CN202249999U Filter for water injection well
05/30/2012CN202249998U Water injection tubular column
05/30/2012CN202249997U Parallel dual-tube separated layer water injection string
05/30/2012CN202249996U Adjustable concentric distributor of underground water
05/30/2012CN202249995U Grinding-wheel type regulating valve of inlaid anti-backflow device
05/30/2012CN202249994U Casting-and-fishing-free separated layer water injection process pipe string
05/30/2012CN202249993U Three-stage three-section back-washing well inserting seal sleeve protected separate injection tubing string
05/30/2012CN202249992U Anti-blocking oil nozzle device
05/30/2012CN202249991U Downhole throttling pipe column suitable for medium sour gas well
05/30/2012CN202249990U Pressure relief type three-claw positioning disc
05/30/2012CN202249989U Timing discharger of underground perforation power supply bar
05/30/2012CN202249988U Submerged connecting device special for underground perforation
05/30/2012CN202249987U Vulcanization resisting ejector
05/30/2012CN202249986U Sand preventing casing hanger
05/30/2012CN202249985U Oil screen pipe
05/30/2012CN202249984U External sand prevention screen tube of pump
05/30/2012CN202249983U Composite balancing block
05/30/2012CN202249982U Energy-saving environment-friendly oil pumping machine for cluster well
05/30/2012CN202249981U Failure alarm protection device of beam pumping unit
05/30/2012CN202249980U Dual-well directional hydraulic linked pumping unit
05/30/2012CN202249979U Wind-driven oil pumping machine
05/30/2012CN202249978U Safety protective fence for oil pumping unit
05/30/2012CN202249977U Mining pneumatic filter type oil pumping device
05/30/2012CN202249976U Energy-saving oil pump
05/30/2012CN202249975U Hydraulic oil pumping system
05/30/2012CN202249974U Shunt drive type motor-reversing oil pumping unit
05/30/2012CN202249973U Pipe column for well deep pumping of screw pump
05/30/2012CN202249972U Oil pumping unit
05/30/2012CN202249971U Oil pump well pump bumping device
05/30/2012CN202249970U Pumping unit horse head fastening jackscrew
05/30/2012CN202249969U Safety auxiliary tool for balance adjustment of pumping unit
05/30/2012CN202249968U Novel oil extractor
05/30/2012CN202249967U Fixed type oil salvage machine
05/30/2012CN202249966U Mobile oil fishing vehicle
05/30/2012CN202249965U Self-paraffin removal viscidity-reducing tubular column for oil well
05/30/2012CN202249964U Pulley assembly
05/30/2012CN202249963U Load bearing belt of beam-pumping machine
05/30/2012CN202249962U Oil pumping unit
05/30/2012CN202249961U Pumping unit for oil field
05/30/2012CN202249957U Coal powder spiral anti-blocking device
05/30/2012CN202249942U Oil-water-well casing swabbing tool
05/30/2012CN202249941U Layering acidification drain valve
05/30/2012CN202249938U Deviation prevention steam injection regulating and controlling valve of thickened oil thermal production well
05/30/2012CN202249899U Pressure isolating device for wellhead production tree
05/30/2012CN202249830U Rope hanging device of closed tank body oil-pumping machine
05/30/2012CN202247492U Steel wire rope for traction pumping unit
05/30/2012CN202233551U Perforating gun accessory kit
05/30/2012CN1946917B Method for processing underground rock stratum
05/30/2012CN102482940A Low emission power generation and hydrocarbon recovery systems and methods
05/30/2012CN102482939A 通过对地下岩层现场电磁加热而提取碳氢化合物的方法 Methods of underground rock scene electromagnetic heating and extraction of hydrocarbons
05/30/2012CN102482938A 用于配置原油驱替系统的方法和系统 Crude flooding method is used to configure the system and system
05/30/2012CN102482937A 用于控制井眼进水的设备和方法 Device and method for controlling borehole water
05/30/2012CN102482936A 用于石油井抽取碳氢化合物的装置 Petroleum hydrocarbons well means for extracting
05/30/2012CN102482935A System and method for anchoring an expandable tubular to a borehole wall
05/30/2012CN102482934A System and method for anchoring an expandable tubular to a borehole wall
05/30/2012CN102482933A System and method for anchoring an expandable tubular to a borehole wall
05/30/2012CN102482932A 可膨胀式尾管悬挂器的送入工具以及相关方法 Can be expandable liner hanger running tool and related methods
05/30/2012CN102482931A 生产管汇配件 Production manifold accessories
05/30/2012CN102482929A 井下装置 Downhole device
05/30/2012CN102482922A 一种具有分布式悬垂弯曲压载物的柔性悬链形提升管 Flexible catenary curved shape having a distributed ballast hanging risers
05/30/2012CN102482568A Methods for treating carbonate hydrocarbon-bearing formations with fluorinated amphoteric compounds
05/30/2012CN102482565A 在煤层操作中控制煤粉 Control of pulverized coal in coal operations
05/30/2012CN102481540A 储存物质的储存装置及储存物质的储存方法 Storage Storage storage devices and storage material substance
05/30/2012CN102477861A 一种复合增效射孔联作测试技术 A complex synergistic Perforation Testing Technology
05/30/2012CN102477860A 一种高压油汽井地面测试改进工艺 A high-pressure oil and gas wells ground test process improvements
05/30/2012CN102477858A Recovery device of well casing exhaust gas
05/30/2012CN102477857A 一种煤炭地下气化贯通方法 One kind through underground coal gasification methods
05/30/2012CN102477856A 煤层裂隙确定方法 Coal method for determining fracture
05/30/2012CN102477855A 用于低渗油藏高盐采出水处理后回注提高驱油效率的方法 Reinjection method to improve oil displacement efficiency of produced water after high salt for low permeability reservoir
05/30/2012CN102477854A 一种流量测调仪器调节臂的收放方法及其装置 A flow measuring instruments regulating arm retractable transfer method and apparatus
05/30/2012CN102477853A 一种在配水器上保证流量测调精度的方法及其装置 A guaranteed water distribution on the accuracy of flow measurement method and apparatus tune
05/30/2012CN102477852A 一种提高套管斜井压裂效果的射孔方法 A method of perforating the casing inclined fracturing effect of improving
05/30/2012CN101832149B Method for extracting coal seam gas by underground heat injection
05/30/2012CN101709636B Microwave heating system for lowering viscosity of produced liquid in oil well
05/30/2012CN101705808B Sectional flow control method for flow control filter pipe column of oil-gas well with bushing outside channel
05/30/2012CN101696626B Multifunctional physical model test device of horizontal well
05/30/2012CN101690865B Moisture recycling supersonic speed gas-purification separation device
05/30/2012CN101586457B Complex oil displacing method suitable for large well spacing condition of offshore oil field
05/30/2012CN101397898B Eccentric wear prevention method for pumping well with pole
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