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)
06/2010
06/30/2010CN201517405U Rapid adjusting and fixing device of balance block of pumping unit
06/30/2010CN201517402U Unpowered piston type capsule oil increasing device
06/30/2010CN201517401U Unpowered piston type capsule oil increasing device
06/23/2010CN201515288U Combined type synchronous motor for driving submersible pump
06/23/2010CN201513336U Oil well pump cylinder surface layer structure
06/23/2010CN201513332U Separate-pumping mixed-drainage oil well pump
06/23/2010CN201513331U One-piece barrel oil well pump with sand scraping function
06/23/2010CN201513330U Blowout prevention and sand prevention oil-well pump with oil drainage function
06/23/2010CN201513329U Oil pump
06/23/2010CN101748994A Beam-pumping unit
06/23/2010CN101240792B High water-containing rod pumped well oiling type double-passage eccentric wear-proof process
06/19/2010CA2688859A1 High-temperature thermosetting polymeric materials for esp motor applications
06/17/2010WO2010066234A1 Clamping mechanism for cylinder liners, use thereof, and mud pump comprising a clamping mechanism
06/16/2010CN201507429U Vortex liquid discharge conveyer in natural gas exploitation
06/16/2010CN201507428U Thermal recovery eccentric heavy oil pump
06/16/2010CN201507427U Constant feedback force oil-well pump
06/16/2010CN201507289U Vertical pumping unit
06/16/2010CN201507288U Vertical oil sucking machine driven by switch reluctance motor
06/16/2010CN201507284U Balancing block adjusting device for oil extractor
06/16/2010CN101382131B Pressure testing downhole oil production screw pump
06/15/2010CA2686782A1 High voltage motor windings
06/09/2010CN201502521U Pump cylinder surface layer structure of oil-well pump
06/09/2010CN201502517U Zero-airlock gas-liquid multiphase deep-well pump
06/09/2010CN201502516U Uninterrupted rodless pump
06/09/2010CN101725514A Hydraulic reciprocating type oil well pump
06/09/2010CN101725513A Soft piston type submerged pump
06/08/2010US7730939 Safety clamp for walking beam compressor
06/08/2010CA2461364C Pumping from two levels of a pool of production fluid, and one way valve therefore
06/02/2010CN201496496U Press roller type belt tension regulator
06/02/2010CN201496389U Device for externally-expanded and internally-clamped gapless connecting rod upper connector of oil pumping machine
06/02/2010CN201496241U Pump capable of pumping water from deep well
06/02/2010CN201496240U Hollow vertical shaft type permanent magnet synchronous drive device for screw pump
06/02/2010CN201496239U Magnetic stripe seal high-efficiency oil pump
06/02/2010CN201496049U Oil well anti-plugging oil pump
06/02/2010CN101387290B Oiling valve for oil-well pump
06/02/2010CN101363437B Downhole linear electric motor oil-well pump
06/02/2010CN101324229B Downhole automatic control hydraulic oil pumping machine
05/2010
05/26/2010CN201486827U Multifunctional top mechanical seal rod type oil extraction pump
05/26/2010CN201486826U Combined sealing type plunger pump
05/26/2010CN201486533U Energy-saving crude oil pumping unit with vertical gravity and balanced force-bearing triangle
05/26/2010CN201486532U Walking beam-free and energy-saving oil pumping machine
05/26/2010CN201486526U Biased barbell balancing device of oil pumping unit
05/26/2010CN201486496U Oil well pump anchor for coaxial bidirectional anchoring
05/26/2010CN201486495U Screw pump anchor
05/26/2010CN101054968B Hydraulic oil pump
05/19/2010CN201474942U Screw pump direct-drive intelligent hoisting device controller
05/19/2010CN201474936U Switched reluctance motor screw pump driving device
05/19/2010CN201474935U Anti-block oil-well pump
05/19/2010CN201474934U Feedback oil well pump
05/19/2010CN201474933U Feedback oil well pump
05/19/2010CN201474932U Straight rod type well pump
05/19/2010CN201474931U Pump pipe device and sand pump vessel with same
05/19/2010CN201474928U Oil extraction diaphragm pump
05/19/2010CN201474677U Energy-saving type oil pumping main machine device
05/19/2010CN201474673U Oil-producing pipe column for sectional water control of horizontal well
05/19/2010CN101709775A Method for removing blockage of oil duct of oil pumping unit reduction gearbox and preventing fault
05/19/2010CN101709696A Moving cylinder efficient tubular oil pump
05/19/2010CN101709634A Adjustable balance up-connected steel cable structure type beam-pumping unit
05/13/2010US20100116508 Hydraulic Pump-Drive Downhole Fluids Pump With Linear Driver
05/12/2010CN201461870U Eccentric wear prevention device for planetary gear of decelerator
05/12/2010CN201461722U Counter-lock anti-loosing crank pin of oil pumping unit
05/12/2010CN201461384U Ceramic pump cylinder of oil pump
05/12/2010CN201461383U Oil pump compound plunger
05/12/2010CN201461347U Balance device of reciprocating submersible motor
05/12/2010CN201461346U Two-way plunger piston oil-extraction electric pump
05/12/2010CN201461345U Multi-support hydraulic seal-sealing plunger pump
05/12/2010CN201461344U Novel anti-breaking oil well pump
05/12/2010CN201461343U Special pump for collecting brine for well
05/12/2010CN201461342U Special high-speed high-pressure deep well pump for water injection in oil fields
05/12/2010CN201461341U Double-layer individually collection oil pump
05/12/2010CN201461340U Feedback type oil-well pump with weight at bottom of pump
05/12/2010CN201460842U Combined balance weight for oil pumping unit
05/12/2010CN201460835U Wheel axle weight type double-rod hydraulic pumping unit
05/12/2010CN201460830U Linear motor lifting spring hydraulic pumping unit
05/12/2010CN201460828U Precise balance and energy saving type beam pumping unit with double horse heads
05/12/2010CN201460826U Multi-layered production separate-pumping process pipe column
05/12/2010CN201460823U Multifunctional double-acting hydraulic oil production device
05/12/2010CN201460782U Incremental oil device
05/12/2010CN101705806A Double-balance oil extractor
05/12/2010CN101705804A Indirect pull-type double-end wire rope type oil pumping machine capable of working independently
05/05/2010CN201448097U Novel beam balance reconnecting device
05/05/2010CN201448096U Offset type crank device
05/05/2010CN201448091U Ground driving device of multiple platform hydraulic driving screw pumps
04/2010
04/30/2010CA2681694A1 Valve rod guide
04/29/2010US20100104457 Turbocharger
04/28/2010CN201443514U Screw pump insulating square clamping seat
04/28/2010CN201443508U Screw pump upper portion insulating polished rod
04/28/2010CN201443503U Elevator for rod-type oil pump
04/28/2010CN201443498U Pumping-assistance pump of oil well
04/28/2010CN201443497U Tubular oil well pump
04/28/2010CN201443496U Anti- release oil pump for plunger
04/28/2010CN201443495U Anticorrosion and abrasion-resistant oil-well pump
04/28/2010CN201443494U Double-input single-output oil-submersible screw pump oil production plant
04/28/2010CN201443373U Rack-type balance weight mover
04/28/2010CN201443368U Rope-suspended connector device of sealing box-body oil extractor
04/28/2010CN201443367U Oil pumping well power cylinder type hydraulic device
04/28/2010CN201443358U Insulated electrothermal rod
04/27/2010CA2310198C Hold down apparatus for progressing cavity pump
04/22/2010WO2010018355A3 Top suction fluid end
04/22/2010US20100098563 Surface Motor Direct-Drive Sucker-Rod Screw Pump Device
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