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Matches 301 - 350 out of 861

Document Document Title
WO/2012/055036A1
In a rotary pump having a rotor and a stator in communication with hydrocarbon production tubing, a submersible pump driver assembly includes a drive motor having an output connected by a drive link to the rotor of the pump. A production...  
WO/2012/052813A1
The present invention relates to an improved mechanical pumping hydraulic unit for use in oil production or hydrocarbon extraction. The unit is characterized in that it has one motor (1-25), which activates a dual pump (1-15) at one end ...  
WO/2012/044200A1
The invention relates to the oil-producing industry and can be used for extracting oil with a large content of gas in the liquid being pumped out. The well-drilling sucker-rod pump comprises a cylinder containing a hollow plunger, in the...  
WO/2012/044203A1
The invention relates to the oil production industry. The pump comprises a cylinder, which has a lower intake valve and is connected to a tubing string with the aid of a sub, which is equipped with an upper intake valve and an upper disc...  
WO/2012/012028A3
A connector for connecting electrical power to a well pump motor has cable and motor connector portions that mate with each other in a connected position. The connector portions have insulating members, each of which has a number of pass...  
WO/2012/036591A1
The invention relates to oil production technology, more specifically to downhole rod pumps, and can be used in the oil and gas industry for extracting high-viscosity fluids. The pump comprises a cylinder with a plunger consisting of two...  
WO/2011/147031A4
The present invention provides for an apparatus for use with a traveling valve assembly of a downhole pump for releasing gas and thereby breaking gas locks. The apparatus comprises a piston slidably disposed within a cylindrical housing,...  
WO/2012/012896A1
A downhole pump has a master piston having a first side and a second side in a first piston chamber. The first piston chamber has a first inlet and a second inlet for alternatingly applying fluid pressure to the first side of the master ...  
WO/2012/012028A2
A connector for connecting electrical power to a well pump motor has cable and motor connector portions that mate with each other in a connected position. The connector portions have insulating members, each of which has a number of pass...  
WO/2011/147031A3
The present invention provides for an apparatus for use with a traveling valve assembly of a downhole pump for releasing gas and thereby breaking gas locks. The apparatus comprises a piston slidably disposed within a cylindrical housing,...  
WO/2011/150213A3
Embodiments disclosed herein relate to a method and a system to deploy a downhole pump within a well. The system includes the downhole pump disposed in a well, the downhole pump having a motor, and a cable having at least one strength me...  
WO/2012/006951A1
A tower assembly transmission numerical controlled oil extractor comprising: a main tower frame (1), a power system, a transmission system, a control system, a counterweight box (2), a weight traction cable (3), a sheave (4), a driving c...  
WO/2011/157337A1
The invention relates to an extracting device having a connecting rod and to a method for controlling an extracting device having a connecting rod and at least one counterweight, the extracting device comprising a part that is rigidly co...  
WO/2011/152936A1
The invention is generally directed to the novel and unique water pump system (10) that is for manual operation, such as when there is a power failure and electrical pump systems are inoperable. An expansion tank (24) is connected to the...  
WO/2011/150213A2
Embodiments disclosed herein relate to a method and a system to deploy a downhole pump within a well. The system includes the downhole pump disposed in a well, the downhole pump having a motor, and a cable having at least one strength me...  
WO/2011/135069A1
The present invention relates to a wellbore pumping system submerged into a wellbore for unloading liquid from a wellbore comprising well fluid, such as gas, having a wellbore pressure, comprising a pump having an inlet and an outlet, a ...  
WO/2011/134085A1
In a downhole rod-driven pump, continuous rod is used to drive the pump. The continuous rod is connected directly to the drive eliminating the need for a polish rod and an uphole coupling. A coupling is used to connect the continuous rod...  
WO/2011/127305A1
The present invention is directed to methods for extracting fluids from oil and gas wells. More specifically, it is directed toward methods and apparatuses to power and control down hole hydraulic devices using subterranean centrifugal p...  
WO/2011/100812A1
The invention relates to an oleohydraulic pumping unit that includes a hydraulic generation system, a hydraulic pump axial to the well and a booster. The hydraulic generation system consists of an electric or thermal engine that actuates...  
WO/2011/087838A1
A coupling system for receiving a push rod includes a housing defining an internal channel having a sloped wall, and a piston received within the internal channel. The piston includes at least one flexible member arranged within the chan...  
WO/2011/085753A1
The invention relates to a deep-well pump system, comprising an immersion pump (20) and a riser (15) to be accommodated in the well, wherein a water treatment system for cleaning the pumped water is arranged in the riser (15).  
WO/2011/069517A1
An apparatus (50) for pumping a fluid from a fluid reservoir (30), the apparatus (50) comprising a piston (13, 14) adapted for reciprocating upwardly and downwardly for pumping the fluid. The apparatus (50) further comprises a first annu...  
WO/2010/141405A4
A vertically orientated hydraulically driven oilfield lift pump unit having a simplified hydraulic system. The system uses a pair of single acting hydraulic cylinders (18) in tandem with a pair of double acting hydraulic cylinders (20) i...  
WO/2011/057579A1
A pumping unit drawn directly by an external-rotor motor includes a permanent-magnet motor (1) with low speed and high torque, an upper platform (2) and an upper guardrail (32), an assembled ladder stand (7), an elevating system (3) of s...  
WO/2011/054085A1
A high efficiency fluid pumping apparatus and methods having of an electronic motor controller controlling at least one electric motor that is directly coupled to the input of a hollow helical mechanism. The output of the hollow helical ...  
WO/2011/008391A3
An apparatus for pumping fluid, the apparatus including a pump housing including a plunger connected to a terminal end of a coiled tubing and a first port. The apparatus further including the plunger configured to move longitudinally upw...  
WO/2010/141405A3
A vertically orientated hydraulically driven oilfield lift pump unit having a simplified hydraulic system. The system uses a pair of single acting hydraulic cylinders (18) in tandem with a pair of double acting hydraulic cylinders (20) i...  
WO/2011/002902A3
A carrier that holds a plunger for a reciprocating pump during maintenance. Maintenance of the pump typically includes repacking of the packing that surrounds the plunger and revalving of the pump's inlet and outlet valve. To allow repac...  
WO/2011/008763A3
A plunger installation tool that exerts a force on a plunger for a reciprocating pump to install the plunger into a pump cylinder opening. Maintenance of the pump typically includes repacking of the packing that surrounds the plunger and...  
WO/2011/022826A1
A series of improvements to artificial lift devices is disclosed. The use of a planar wireless motor in various embodiments of the artificial lift devices overcomes the limitations presently encountered with conventional lifts. The motor...  
WO/2011/020177A1
A switching assembly for a hydraulic pump jack has a non-magnetic cylinder. A piston is reciprocally movable within the interior bore of the cylinder. The piston has circumferential sealing means to engage the interior surface of the cyl...  
WO/2011/014954A1
A reciprocating linear motor powered by one directional fluid flow is provided, having small external diameter, optimized for length, with few moving parts and effective seals, low mass and thus low inertia in direction changes. The moto...  
WO/2010/118535A4
A downhole pump for use in oil and gas wells and a method for using same is provided. The pump includes a cylindrical housing having a pair of opposing pistons disposed therein, connected together by a connecting rod that reciprocates wi...  
WO/2011/008391A2
An apparatus for pumping fluid, the apparatus including a pump housing including a plunger connected to a terminal end of a coiled tubing and a first port. The apparatus further including the plunger configured to move longitudinally upw...  
WO/2011/008763A2
A plunger installation tool that exerts a force on a plunger for a reciprocating pump to install the plunger into a pump cylinder opening. Maintenance of the pump typically includes repacking of the packing that surrounds the plunger and...  
WO/2011/002902A2
A carrier that holds a plunger for a reciprocating pump during maintenance. Maintenance of the pump typically includes repacking of the packing that surrounds the plunger and revalving of the pump's inlet and outlet valve. To allow repac...  
WO/2011/002558A1
Methods and mechanisms for fluid sealing are provided. The disclosed mechanisms include a tool having a cavity configured to form a toroidal vortex and a fluid sealing element to induce an azimuthal variation of the toroidal vortex (a "d...  
WO/2010/147680A1
An improved delivery system for pumping fluid from a pay zone to the surface of a well in which the well casing is fitted with a pump (P) lodged in the pay zone of the well, a drive head at the surface of the well and a rod string connec...  
WO/2010/134847A1
The invention relates to the oil production industry, more specifically to the prevention of deposits (asphalt, resin and paraffin, salts, hydrates, etc.) on the surfaces of pump rods, and can be used for coating pump rod bodies. It can ...  
WO/2010/135119A1
Embodiments of the present invention generally relate to an electric submersible pumping system (1) for dewatering gas wells. In one embodiment, a method of unloading liquid from a reservoir includes deploying a pumping system into a wel...  
WO/2010/118535A1
A downhole pump for use in oil and gas wells and a method for using same is provided. The pump includes a cylindrical housing having a pair of opposing pistons disposed therein, connected together by a connecting rod that reciprocates wi...  
WO/2010/111911A1
A wheel pumping unit includes a support frame (12), a base (1), a sucker rod (7), a traction rope (10) for the sucker rod, a counterweight (18), a traction rope (17) for the counterweight, a driving wheel (19), a driving wheel bracket (3...  
WO/2010/114916A1
Forces on and respective positions of a pump jack sucker rod are determined in real time by load cells attached to the sucker rod and a position sensor, and are stored for further processing. A wireless transmitter transmits stored load ...  
WO/2010/104412A1
This technical proposal pertains to oil and gas industry, namely, to the equipment for lifting well fluid to the surface. Oil well plunger pumping assembly consists of a plunger pump with suction valve, traveling valve, rods tied on the ...  
WO/2010/098690A1
This technical proposal pertains to oil and gas industry, namely, to screw pumps driving the tubing string from the wellhead, hence it can be used for lifting fluid from the wells. Oil-well screw pump driven from the wellhead 1 (designed...  
WO/2010/021602A3
Pumping equipment comprising a structure of components caulked in places of connection, which together constitute a pumping mechanism (1) enabling for a through-flow of fluid and consisting of a chamber module (11) comprising a chamber (...  
WO/2010/025461A3
Systems and methods for providing a pump driving unit for driving an above ground pump. The pump driving unit utilizes a single prime mover and a drive train for actuating multiple components required to drive the above ground pump. Some...  
WO/2010/066234A1
The invention relates to a clamping mechanism for cylinder liners of a pump system and a piston or plunger pump for conducting drilling fluid when sinking boreholes especially in the field of oil and natural gas extraction. Said pump sys...  
WO/2010/018355A3
A positive displacement wellbore servicing pump having a power end and a fluid end is disclosed. The fluid end has a main chamber and a suction bore in fluid connection with the main chamber and the suction bore has a suction central axi...  
WO/2010/025461A2
Systems and methods for providing a pump driving unit for driving an above ground pump. The pump driving unit utilizes a single prime mover and a drive train for actuating multiple components required to drive the above ground pump. Some...  

Matches 301 - 350 out of 861