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WO/1989/007201A1 |
A piston-driven down hole pump (10) and a method for using the same to lift fluid on both its upstroke and downstroke. The pump is powered by a waste water injection pump (216). A drive piston (18) connected to a production piston (20) a...
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WO/1988/004365A1 |
A well pump includes a piston and an inlet and/or outlet valve assembly of special structure. Each is formed of a body of organic polymer, preferably PTFE. Each includes a cavity in its upper portion and at least one passage leading from...
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WO/1987/007684A1 |
A fluid pump operated by a lever (13). The lever is journalled to a pumpstand (14) by means of a number of elastic elements (18) positioned between noncircular surfaces (16, 17) of the lever and the pumpstand. The lever is connected to t...
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WO/1987/006653A1 |
Method and apparatus for pumping production fluid up a production tube from a well. A hydraulic actuator unit, (100, 160, 200) with its own hydraulic fluid incorporates pressure sensing valves (40, 42, 54, 76, 141, 228, 236, 238) to move...
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WO/1987/005974A1 |
A bladder pump (40) is suspended in a tubular air lift pump housing (14) which is closed at its lower end by a check valve (19), and which is connected at its upper end by a first conduit (25) and a separator (24) selectively to a supply...
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WO/1987/004498A1 |
A pump arrangement particularly intended for pumping water from deep wells, in which a feed pump unit (2) located at ground level transmits power and motion to a delivery pump unit (3), so that during a working stroke of the pump arrange...
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WO/1987/003935A1 |
A device for pumping a fluid medium comprising a casing (1), the cavity (4) in the upper part (2) of which is connected through selector valves (5, 9) to the atmosphere and to an inlet main (6), whereas in the lower part (3) of the casin...
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WO/1987/003649A1 |
A submersible well pump of the barrel (2) and piston (6) type characterised by a valve chamber (5) formed coextensively with the barrel (2) and containing an inlet valve (4) and an outlet valve (8) arranged to admit fluid to one end of t...
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WO/1987/002100A1 |
A displacement piston pump incorporating a driving pump (11), which via a conduit hydraulically drives a lifting pump (12) provided with a spring loaded differential piston (23). The pistons (15, 23) of the pumps are designed with throug...
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WO/1986/003262A1 |
A hydraulically powered reciprocating downhole pump having improved means for reliable and efficient operation in which a reversing valve (8) is hydraulically shifted past center position so as to effect a smooth continuous operation. In...
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WO/1986/003250A1 |
Method and means to pump a well with a hydraulically-driven downhole pump (15) as powered by a hydraulic surface unit (1), including a downhole filter assembly (71) and a flowline mounted oil leach (27) for supplying makeup oil to the su...
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WO/1986/002971A1 |
A downhole hydraulically operated oilwell pump (12) having means for mounting and methods for mounting and for operating that improve performance and extend useful life by negating sand effects and gas locking tendencies. A remotely and ...
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WO/1986/002412A1 |
A pumping apparatus (10) which includes a downhole reservoir unit (20), a pumping unit (18) and a power unit (102). The reservoir unit (20) has a piston assembly (70) with a top piston (72) and a bottom piston (74). A storage chamber (82...
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WO/1986/000962A1 |
A pump, particularly intended for use in pumping water from bore holes in the developing countries, comprises a cylindrical casing (2), the interior of which is divided into first and second chambers (12, 14) by a tubular flexible membra...
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WO/1986/000116A1 |
A bore hole pump which eliminates the need for a piston sealingly engaging with the walls of the pump body. The pump comprises a hollow body (11) closed at its lower end by a non-return inlet valve (13) and slidably and sealingly support...
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WO/1985/004691A1 |
The pump has a first pumping means (1) to be immersed into the liquid that is to be pumped, and a second means, driving pumping means (2), adapted to drive the first pumping means. The driving pumping means has a cylinder chamber (7) whi...
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WO/1984/001987A1 |
A pump jack for reciprocating a string of rods in a well in which a drive shaft (23) having an axis below the axis of a guide wheel (43) supported above the well has a crank arm (25) mounted to each end of the drive shaft (23) for rotati...
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WO/1984/001191A1 |
Methods and means wherein a downhole reciprocating oil well pump powered by a source of pressurized fluid via one tubing string (32) pumps liquid from the well through another tubing string (30). The downhole pump having internal means t...
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WO/1984/001002A1 |
A hydraulically actuated bore or well pump in which a driving unit (1) at the bore or well surface comprises interconnected pistons (6 and 7) arranged to hydraulically actuate a slave piston (27) in a submerged well or bore unit (2) thro...
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WO/1983/002805A1 |
Pump for liquids and gases, particularly for immersing in a well hole. A pump piston (35) is operated by a double acting operating piston (33) provided with working medium through a supply conduit (13). The supply of working medium to th...
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WO/1983/001817A1 |
A method, system, and apparatus for pumping liquid from a well such that vapor lock of the pump cannot occur due to gas or steam and such that the pump strokes only in response to the production rate of well liquid. The pumping chamber (...
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WO/1983/001658A1 |
An apparatus (3) for pumping fluid from a fluid source (5) to a predetermined location (7) remote from the fluid source. The apparatus (3) comprises an hydraulically operated pump (9) having a fluid pumping chamber and means for storing ...
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WO/1983/000203A1 |
A well pump includes a Sampson post (2) supporting a walking beam (1) which oscillates to cause a horsehead (3) to operate one or more sucker rods in a well bore. The invention avoids need for a flywheel, gearbox or other mechanical mean...
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WO/1982/000859A1 |
An oil well pumping apparatus which includes a submerged reciprocating pump (45) mounted in a tubing arrangement (40) communicating with the wellhead, a sucker rod string (67) extending through the tubing arrangement (40) and connected i...
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WO/1981/003206A1 |
An oil well pump driving unit with a horizontally disposed hydraulic cylinder (40) having a cylinder rod (41) coupled to a drive rope (31) extending into a pumping tee-stuffing box arrangement (30) for driving the sucker rod string (36) ...
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WO/1980/000173A1 |
A wind machine has a tower frame (12) formed by four converging beams. At the top of the tower is a gear head (26) connected to a wind driven rotatable multibladed rotor (48). Connected to the gear head is a vertical shaft (27) which is ...
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JP7233963B2 |
The pump includes a ring-shaped first inclined surface formed in a portion of a production pipe located above a motor stator and inclined in a direction toward a central axis of the production pipe with respect to a direction from an upp...
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JP7224205B2 |
To provide a pump capable of supporting the self-weight of a motor shaft by a pump shaft when suspending an inner element into a manufacturing pipe, and capable of transmitting a hydro-loading operating downward in a vertical direction t...
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JP2022540730A |
The present invention relates to an improved rubber sealed plunger assembly for an electric compressor bypass valve. The present invention is an improved rubber sealed plunger assembly for an electric compressor bypass valve that has a l...
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JP7085503B2 |
A cylindrical gap is formed between a production pipe and a pump stator, the pump stator has a tubular pump casing that surrounds a plurality of pump bodies, the pump casing is provided with a penetrating portion that penetrates the pump...
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JP7021248B2 |
A coupling for joining a downhole pump to a sucker rod string is disclosed. The coupling includes a core having a first end, a central portion, and a second end. The first end and the second end each have an end surface. The first end ta...
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JP6678603B2 |
Methods and apparatus to determine parameters of a pumping unit for use with wells are disclosed. An example apparatus includes a housing and a processor positioned in the housing. The processor is to determine a first load on a polished...
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JP6616396B2 |
Methods and apparatus to determine production of downhole pumps are disclosed. An example method includes measuring an amount of liquid produced from a well by a pumping unit during a predetermined time period and determining first areas...
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JP6604978B2 |
Methods and apparatus to determine operating parameters of a pumping unit for use with wells are disclosed. An example apparatus includes a housing and a processor positioned in the housing. The processor is to determine a rate at which ...
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JP6514838B1 |
The present invention discloses an adjustable shared equilibrium device for a beam pumping system for multiple wells, a holder in which bearing boxes are installed on both sides of the top, and an equilibrium disk and an equilibrium disk...
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JP2017514044A |
The present invention relates to a deep well submersible motor pump protective pumping pipe, so that the pumping pipe installed in the deep well can be safely constructed and the water can be stably pumped by the submersible motor pump. ...
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JP5824453B2 |
A system and method are provided for reducing the energy consumed by a pump jack electric motor by reducing the supply voltage to the motor when the motor would be generating energy in open loop mode. By substantially eliminating the ene...
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JP5022219B2 |
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JP2011032907A |
To provide an effective and appropriate pumping device which can securely and efficiently perform pumping from a water area without the necessity of an intake pump and a pump pit therefor.A bubble emitting tube 13 with a bubble emitting ...
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JP4626057B2 |
A pump off control method comprises detecting the speed of the induction motor and an instantaneous value of secondary current of the induction motor. Down stroke time in every cycle of the pump jack is detected. An average value of inst...
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JP4614166B2 |
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JP4555832B2 |
The invention relates to a new type of deep well pump apparatus, especially a numerically controlled reciprocating submersible pump apparatus having a drive integrated with a pump freely adjusting parameters online any time. The whole ap...
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JP4475806B2 |
An apparatus for high pressure pumping or homogenizing of liquids has a drive motor with a transmission mechanism and a pump section. The transmission mechanism includes a belt train, a gearbox and a crank mechanism which is housed in a ...
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JP2010101292A |
To provide an effective and appropriate deep water intake installation, achieving stable operation without taking a higher safety factor with respect to a suction water head, and reasonable and economic design.In this deep water intake i...
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JP2010101291A |
To provide a deep water intake installation and a method for operating the same, easily preventing adverse effect when a deep water pump is switched on/off.In this deep water intake installation pumping up and taking deep water from the ...
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JP4409672B2 |
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JP4299018B2 |
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JP4260979B2 |
A method for restarting a motor of a submersible pump after a power interruption is disclosed. The system first detects when the power is turned back on to the system. A control means then samples signals sent back from the unpowered mot...
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JP4172846B2 |
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JP3145049U |
To provide a pump which is hard to be clogged even if a pumping operation of pumping water in a well is performed for a long time. In a pump provided in a housing 8 in which impellers 6, 6 connected to a shaft 5 interlocked with a submer...
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