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)
06/2014
06/04/2014CN103837208A High-position pool water level measuring device and automatic water pumping system
06/04/2014CN103835930A Aligning and load reducing linear motor oil well pump
06/04/2014CN103835681A Reciprocating oil pumping device driven by submersible motor
05/2014
05/30/2014WO2014045172A3 Low-power-consumption mechanical pumping unit including a vertical motor
05/29/2014US20140147307 Method for reducing permeability of downhole motor protector bags
05/29/2014US20140147291 Reciprocating pump assembly and method thereof
05/28/2014CN203614375U 一种用于煤层气井排采的防砂防气管式泵 A CBM wells anti erosion control drainage pipe pump
05/28/2014CN103821705A 稠油热采双通道携砂采油泵 Dual carrying heavy oil thermal recovery pump sand mining
05/28/2014CN103821704A 防腐防砂耐磨抽油泵 Sand pump wear and corrosion
05/28/2014CN103821703A 一种井下液力活塞泵 A downhole hydraulic piston pump
05/27/2014CA2576538C Improved hollow sucker rod connection with second torque shoulder
05/22/2014WO2014078851A2 Real-time pump diagnostic algorithms and application thereof
05/21/2014EP2732163A2 Poppet valve with integrated dampener
05/21/2014CN203604177U 一种多功能联作抽油泵 Alliance for a versatile pump
05/21/2014CN203604176U 加强游动阀罩防脱抽油泵 Strengthening the traveling valve cover anti-off pump
05/21/2014CN203604175U 一种管式抽油设备 A pipe-type pumping equipment
05/21/2014CN203604138U 串联式注采泵 Tandem pump injection -
05/21/2014CN203603862U 液力反馈注采装置 Note mining equipment hydraulic feedback
05/21/2014CN203603858U 一种采油螺杆泵 One kind of oil screw
05/21/2014CN103807152A 一种并联式双腔抽油泵 One kind of parallel dual-chamber pump
05/21/2014CN103807151A 抽油机连续举升泵及其举升方法 Continuous lift pumps and pumping lift method
05/21/2014CN103798102A 风力滴灌供水设备 Wind drip water supply equipment
05/20/2014US8727749 Cranked rod pump method
05/20/2014US8727186 Method and product delivery mechanism with a pump
05/20/2014CA2711624C Electric submersible pump (esp) having a motor with mechanically locked stator laminations
05/14/2014CN203594586U 一种sagd高温电潜泵电机的保护装置 A protective device temperature electrical submersible pump motor sagd
05/14/2014CN103790812A 化学复合驱防卡变径抽油泵 Chemical Flooding adjustable pump anti-card
05/14/2014CA2843321A1 Method and apparatus for pumping fluid
05/08/2014US20140127065 Single and multi-chamber wellbore pumps for fluid lifting
05/08/2014US20140127046 Downhole hydraulic pump
05/07/2014CN203584756U 一种空心抽油泵 One kind of hollow pump
05/07/2014CN203584755U 水利抽油泵 Water Conservancy pump
05/07/2014CN203584754U 活塞式抽油泵 Piston pump
05/07/2014CN203584382U 采油环流注采装置 Oil circulation injection and production equipment
05/07/2014CN103775318A 一种液压传动无杆抽油系统 A hydraulic actuator rod pumping system free
05/07/2014CN103775046A 一种稠油分注合采偏心反馈泵及工艺方法 One kind of heavy oil dispensing pumps and commingled eccentric process for feedback
05/06/2014US8714936 Fluid sealing elements and related methods
05/01/2014WO2014064254A1 Wireline pump
05/01/2014US20140119965 Downhole pump assembly
04/2014
04/30/2014EP2725189A1 Wireline pump
04/30/2014CN203570278U Gravel balance adjusting device for beam pumping unit
04/30/2014CN103758739A Hydraulic piston pump lifting system
04/24/2014WO2014060859A1 Improved piston pump
04/22/2014US8701755 Apparatus and method for pumping well fluids and debris
04/22/2014CA2740682C Insertable surface-driven pump
04/22/2014CA2671353C A motor direct drive rod ground screw pump device
04/17/2014WO2014058426A1 System for operating a hydraulically powered submersible pump
04/17/2014US20140105759 Linear pump and motor systems and methods
04/16/2014EP2718573A2 Modular anti-torque mechanism
04/16/2014CN203548142U Plunger pump
04/16/2014CN203548090U Gas piston type drainage device
04/09/2014CN203532215U Double-pipe sand setting pump
04/09/2014CN203532214U Oil well pump for horizontal well and inclined well
04/09/2014CN203531857U Self-carrying balance block of belt pumping unit
04/09/2014CN203531854U Waterpower piston pump easily entering well
04/08/2014CA2631417C Low clearance downhole pump
04/02/2014CN203516078U Mechanical strongly-twisted plunger rotator
04/02/2014CN203516060U Anti-collision water draining pump for deep well
04/02/2014CN203516038U Balance load shedding device of oil sucking pump
04/02/2014CN203516037U Enhancing device for pump efficiency
04/02/2014CN203516036U Hydraulic piston pump with stable supporting function
04/02/2014CN203516035U High-energy hydraulic oil extraction system
04/02/2014CN203516034U Stable type hydraulic piston pump capable of conveniently entering well and lifting
04/02/2014CN203516033U Electric oil production pump
04/02/2014CN203516032U Blocking-type blowout-proof oil well pump
04/02/2014CN203516031U Blowout-control oil well pump
04/02/2014CN203516030U Non-metallic pipe oil-submersible screw pump oil production plant
04/02/2014CN203516029U Righting device of anti-scale oil well pump
04/02/2014CN203516028U Fireflood oil well pump
04/02/2014CN203516027U Sand and gas prevention integrated oil extraction device
04/02/2014CN203516026U Gap bridge type inversed pull-down pump
04/02/2014CN203516025U Directional force-close type deloading gas prevention oil well pump
04/02/2014CN203515409U Device for preventing electric submersible pump from falling into well
04/02/2014CA2829684A1 Linear pump and motor systems and methods
03/2014
03/28/2014CA2829279A1 Lubricator with interchangeable ports
03/27/2014WO2014047516A1 Hydraulic system with modular inserts
03/27/2014DE212012000152U1 Eine intelligente und effiziente Tiefbrunnenpumpe An intelligent and efficient deep well pump
03/26/2014CN203499965U Double-layer self-sealing overlength stroke oil well pump
03/26/2014CN203499964U Slim-hole mechanical water packing and plugging bridge-crossing oil well pump
03/26/2014CN103671043A Hydraulic drive oil extraction device
03/25/2014CA2828322A1 Drain vent for petroleum/chemical fluid pumping devices and method of making the same
03/25/2014CA2702196C Hybrid hydraulic-electric ram pumping unit with downstroke energy recovery
03/19/2014CN103649457A Downhole hydraulic pump
03/14/2014CA2826593A1 Hydraulic oil well pumping system, and method for pumping hydrocarbon fluids from a wellbore
03/13/2014WO2014037753A2 Wellbore esp system with improved magnetic gear
03/12/2014EP2705335A1 System and method for sensing a liquid level
03/12/2014CN203476673U Hydraulic drive deep-well pump system for ships
03/12/2014CN203476672U Sand scraping assembly for oil pump
03/12/2014CN203476671U Anti-blowout oil pump
03/12/2014CN103629093A Sand prevention gas-proof tubular pump for drainage and exploitation of coal-bed gas well
03/12/2014CN102287358B Long-plunger type dual-barrel coal-dust resistant discharging and extracting pump
03/11/2014CA2713745C Device, computer program product and computer-implemented method for backspin detection in an electrical submersible pump assembly
03/06/2014WO2014002036A3 Tooling system for maintaining hand pumps for deep boreholes
03/05/2014EP2702244A2 Reverse rotation protection for borehole pumps
03/05/2014CN203463273U One-piece combination valve fluid power balance pump head
03/05/2014CN203463271U Non-steel oil well pump righting pawl
03/05/2014CN203463265U Power-enhanced downhole hydraulic oil pumping system
03/05/2014CN203463264U Eccentric oil inlet respective-pumping and mixed-outtake oil pump
03/05/2014CN203463263U Dual-sealing piercing preventing oil pump
02/2014
02/28/2014CA2822878A1 System, method and apparatus for computing, monitoring, measuring, optimizing and allocating power and energy for a rod pumping system
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