Patents
Sitemap › F04 - Positive-displacement machines for liquids; Pumps for liquids or elastic fluids › F04B - Positive-displacement machines for liquids; Pumps › F04B 47 - Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps
Patents for F04B 47 - Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps (5,485)
09/2012
09/04/2012CA2770006A1 Method and apparatus for fluid pumping
09/04/2012CA2666643C A counterweight structure for vertical oil pumping unit
09/02/2012CA2770416A1 Reciprocating pump drive apparatus for operating a downhole pump via a rod string
08/2012
08/30/2012US20120219433 Apparatus and Method for Facilitating a Hydrostatic Pressure Increase in a Fluid Flowing in a Pipe
08/22/2012CN101782060B Hydraulic oil pump
08/21/2012CA2692330C Electrical connector and socket assemblies
08/15/2012CN202381305U Separate-extraction mixed-production oil well pump
08/14/2012US8240221 Beam pumping unit for inclined wellhead
08/04/2012CA2731037A1 Coiled tubing deployed esp
08/02/2012WO2012102995A2 Pump attachment interface providing a fixed link between a pump line coupled to a mobile tank and a line disposed in a reservoir
08/02/2012WO2012058147A3 Portable steel-reinforced hdpe pump station
08/01/2012CN202360072U Weight box with position-limiting device for oil pumping machine
08/01/2012CN102619734A Anti-scale oil well pump for ternary composite flooding well
08/01/2012CN101936290B Blowout preventer of rod type defueling pump
07/2012
07/26/2012WO2012097493A1 Oil-pumping machine
07/25/2012CN202348236U Tail balance weight regulation device for bent beam pumping unit
07/25/2012CN202348235U Energy-saving over-pump thermal recovery system device for thick oil
07/25/2012CN102606112A Oil pumping unit
07/24/2012CA2573489C Wellhead assembly for hydraulic pumping system
07/19/2012WO2012067898A3 Isolating wet connect components for deployed electrical submersible pumps
07/19/2012US20120183424 Offset valve bore for a reciprocating pump
07/17/2012CA2666639C A 3-pillar pumping unit driven by compound permanent-magnet motor & its fabrication method
07/17/2012CA2666211C A clearance method and device for the oil pumping unit driven by compound permanent magnet motor
07/12/2012US20120177517 Valve Cap
07/11/2012CN202326130U 注汽防砂抽油泵 Sand steam injection pump
07/11/2012CN202326129U 隔舱旋转式抽油泵 Rotary pump compartment
07/11/2012CN102562546A Hydraulic self-sealed oil plunger pump with multistage pump cylinder
07/11/2012CN102562545A Leakage-proof oil well pump
07/11/2012CN102562544A High-temperature oil pump
07/11/2012CN102562543A Quantitative anti-blockage oil pump for oil production vehicle and designing method thereof
07/11/2012CN102562542A Sand-preventing scale-preventing oil well pump with long plunger piston
07/11/2012CN101672173B Dual horsehead fine balance energy-saving walking beam pumping unit
07/05/2012WO2012092452A2 Short length pump having brine resistant seal and rotating wrist pin and related methods
07/05/2012CA2823213A1 Short length pump having brine resistant seal and rotating wrist pin and related methods
07/04/2012CN202300957U 斜井防气抽油泵 Inclined anti-gas pump
07/04/2012CN202300956U 旋流侧吸抽油泵 Swirl pump suction side
07/04/2012CN202300334U 连续式短冲程抽油机 Continuous short stroke pumping unit
07/04/2012CN202300327U Fixing device of drill pump pull rod sealing element
07/04/2012CN102536759A Downhole tool for eddy-current liquid-discharging gas production of low-yield natural-gas well
07/04/2012CN102536758A Low-submergence tubing pump special for drainage and production of coal-bed gas
07/04/2012CN101519954B Multifunctional combination operation process and device for injection pump unit
06/2012
06/29/2012CA2767980A1 Intelligent online closed-loop balance adjusting system for pumping unit
06/28/2012WO2012088197A2 Water pump and methods of use thereof
06/28/2012US20120164008 Negative-pressure oxygen providing device
06/27/2012CN101576074B Reciprocating electric submersible pump
06/26/2012CA2721550C Integrated pumping system for use in pumping a variety of fluids
06/20/2012CN202280611U 数控往复潜油电泵平衡减震装置 NC reciprocating submersible pump balance damping device
06/20/2012CA2762358A1 Progressing cavity pump/motor
06/14/2012DE102010053901A1 Modulare Drehmomentsicherung Modular torque backup
06/13/2012CN202273836U 一种深采泵装置 A dark mining pump unit
06/13/2012CN202273657U 双滑轮结构配重箱 Double pulley structure with heavy boxes
06/13/2012CN102493944A Ground direct-driving screw pump oil extraction device for switched reluctance motor
06/07/2012WO2012016267A3 Well water pump
06/07/2012US20120141308 Polymeric Pump Parts
06/07/2012CA2725142A1 Rotary reciprocating pump
06/06/2012CN202266396U 一种矿用潜水电泵组 Ore with a submersible pump group
06/06/2012CN202266243U 抽油机用轨道式平衡块移动装置 Pumping balance blocks using a track mobile devices
06/06/2012CN101672174B Energy-saving uninterrupted non-rod oil pumping device
05/2012
05/31/2012DE102010052657A1 Duales Dreh- und Axiallastaufnahmeelement Dual rotating and Axiallastaufnahmeelement
05/31/2012DE102010026239B4 Unterwasserförderaggregat mit einer Pumpe und einer Antriebseinrichtung Underwater delivery unit with a pump and a driving device
05/30/2012CN202250744U Blowout prevention oil well pump
05/30/2012CN202250743U Rod type oil well pump
05/30/2012CN202250742U Anti-breakage/falling lengthened plunger oil pump
05/30/2012CN202250741U Anti-stucking anti-dropping oil well pump
05/30/2012CN202250740U Soft-seal ternary pouring anti-scaling high-efficient oil-well pump
05/30/2012CN202250739U Forced starting and stopping oil-well pump
05/30/2012CN202249983U Composite balancing block
05/30/2012CN202249976U Energy-saving oil pump
05/30/2012CN102477974A 油田抽油泵多用途节能装置 Multipurpose oil pump energy-saving devices
05/24/2012WO2012067898A2 Isolating wet connect components for deployed electrical submersible pumps
05/24/2012WO2012067638A1 Ultra pump systems
05/24/2012CA2817739A1 Isolating wet connect components for deployed electrical submersible pumps
05/23/2012CN202228321U Hollow circulation oil well pump
05/23/2012CN202228320U Tandem type three-cavity oil suction pump
05/23/2012CN202228319U Anti-blocking oil well pump
05/23/2012CN102465866A 一种新型液压螺杆泵 A new hydraulic screw
05/23/2012CN102465865A 可变容积腔抽油泵 Variable volume pump chamber
05/23/2012CN102465864A 轴向可变容积腔抽油泵 Axial variable volume pump chamber
05/23/2012CN102465863A 径向可变容积腔抽油泵 Radial variable volume pump chamber
05/23/2012CN101451428B Vacuum and pneumatic double dynamic multi-well pumping well system device
05/23/2012CN101429936B Down-hole double-screw type oil gas multi-phase mixed pump
05/23/2012CN101319605B Multi-zone production rate regulating column tool for oil-submersible electric pump well and its multi-zone production rate regulating method
05/16/2012CN102459809A 改进的井下传送系统 Improved underground transport system
05/15/2012CA2489671C Submersible well pump with improved diaphragm
05/09/2012EP2449293A2 Tubular valve system and method
05/09/2012CN202215211U Drum tower frame type oil pumping unit
05/09/2012CN202215207U Quick balancing device of pumping unit
05/09/2012CN102449261A Electric submersible pumping system for dewatering gas wells
05/03/2012WO2012058658A1 Method of making progressing cavity pumping systems
05/03/2012WO2012058147A2 Portable steel-reinforced hdpe pump station
05/03/2012WO2012055036A1 Submersible progressive cavity pump driver
05/03/2012CA2816365A1 Submersible progressive cavity pump driver
05/03/2012CA2816301A1 Method of making progressing cavity pumping systems
05/02/2012CN202209274U Plunger and oil pump
05/02/2012CN101725165B Method and pump device for fetching water from deep well
04/2012
04/27/2012CA2756358A1 Continuous rod transport system
04/26/2012WO2012052813A1 Mechanical pumping hydraulic unit
04/26/2012US20120100014 Submersible pump system
04/26/2012CA2815439A1 Mechanical pumping hydraulic unit
04/25/2012CN202203103U 新型防沉砂卡泵装置 New anti-grit card pump device
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