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Patent Searching and Data


Matches 351 - 400 out of 788

Document Document Title
WO/2005/121507A1
A system and method are provided for identifying underperformance in a pumping system used to produce a desired fluid. Various conditions are sensed during operation of the pumping system, and those sensed conditions are used to determin...  
WO/2005/116451A1
A pump for evacuating heavy oil containing mechanical impurities and embedded in strata is disclosed. The pump includes one or more tanks (4), each with a flexible membrane (5), situated in an external pump casing. Each flexible membrane...  
WO/2005/108790A1
There is disclosed a valve cap for sealing an aperture in a pump; a plugging assembly for use in a valve cap to provide a seal at an aperture in a pump; a docking unit for use with a plugging assembly for sealing an aperture in a pump; a...  
WO/2005/108743A1
The present invention includes methods and apparatuses to pump fluids from a depth of a wellbore. The methods and apparatuses preferably use a hydraulically actuated reciprocating pump (fig 1) to pump fluids from the subterranean depths ...  
WO2005059364B1
A reciprocating pump includes a stationary housing and a travelling housing. The travelling housing is telescopically received within the stationary housing and is movable from a retracted position to an extended position. A screw is pro...  
WO/2005/073555A1
A piston type pumping apparatus comprises a vertically oriented cylinder having a top and a bottom with a first aperture. There are first and second passageways for liquid in the cylinder at the top and bottom respectively thereof. A pis...  
WO/2005/071264A1
Hydraulic motor arrangement comprising a hydraulic motor (1), and supply means for supplying a drive liquid to the hydraulic motor (1) to drive the hydraulic motor. The supply means comprises a first (10) and a second (20) expel reservoi...  
WO2004074637A3
The present invention is a cylindrical linear fluid motor (10) comprising a plurality of reciprocating rotary piston sleeve (42) intermediate an inner coaxial hollow drive shaft (20) and an outer cylindrical housing (30). Rotating disc v...  
WO/2005/059364A1
A reciprocating pump includes a stationary housing and a travelling housing. The travelling housing is telescopically received within the stationary housing and is movable from a retracted position to an extended position. A screw is pro...  
WO/2005/050022A1
Provided herein are exemplary embodiments of an efficient pump apparatus. In one embodiment the pump apparatus comprises a piston assembly loosely disposed within a cylinder. The piston assembly includes a driving cable connecting a top ...  
WO2005017299A3
A piston pump for submerging in an oil well, consisting of four pistons that, by means of a fixed interlock (105) between two opposing pistons and a cog wheel interlock (104) between these and the two other pistons, get two oncoming pist...  
WO2004094770B1
A downhole pump includes a pump barrel defining a pumping chamber having a first end and a second end, a first one-way valve positioned at the first end of the pumping chamber, a second one-way valve positioned at the second end of the p...  
WO2005001231A3
A submersible pump (10) for attachment to the lower end of a well pipe discharge tube (100) for insertion in liquid includes a stationary collecting tube (20) for collecting the liquid and an upward and downward reciprocating pumping tub...  
WO/2005/017299A2
A piston pump for submerging in an oil well, consisting of four pistons that, by means of a fixed interlock (105) between two opposing pistons and a cog wheel interlock (104) between these and the two other pistons, get two oncoming pist...  
WO2004094770A3
A downhole pump includes a pump barrel defining a pumping chamber having a first end and a second end, a first one-way valve positioned at the first end of the pumping chamber, a second one-way valve positioned at the second end of the p...  
WO/2005/017354A2
A portable pump includes a rotating elliptical plate mounted on a rotating shaft, an elliptical plate follower with rollers or bearings positioned on the top and bottom surfaces of the rotating elliptical plate at a fixed distance from t...  
WO/2005/015024A1
A pump comprises pumping means (1) of a fluid and galvanic protection means (3, 4) arranged to protect against corrosion said pumping means (1), said galvanic protection means (3) comprising sacrificial anode means (4) arranged in direct...  
WO/2005/001231A2
A submersible pump (10) for attachment to the lower end of a well pipe discharge tube (100) for insertion in liquid includes a stationary collecting tube (20) for collecting the liquid and an upward and downward reciprocating pumping tub...  
WO2004065792A3
The present invention generally provides apparatus and methods of operating a pumping system. The pump control apparatus includes a first sensor for measuring strain on a structure of the well pumping system and a second sensor for measu...  
WO/2004/099618A1
The inventive pumping plant can be used for pump engineering, the mining, petroleum and gas industries for extracting liquid from wells. Said pumping plant is provided with two cavities which are arranged in each hollow rod, isolated fro...  
WO/2004/094770A2
A downhole pump includes a pump barrel defining a pumping chamber having a first end and a second end, a first one-way valve positioned at the first end of the pumping chamber, a second one-way valve positioned at the second end of the p...  
WO/2004/074637A2
The present invention is a cylindrical linear fluid motor comprising a plurality of reciprocating rotary piston sleeve intermediate an inner coaxial hollow drive shaft and an outer coaxial cylindrical housing. Rotating disc valves at bot...  
WO/2004/065791A1
A gravity water pump pumping various kinds of fluids, including a waterfall, river water and drizzle, and gases heavier than air, using gravity and producing kinetic and potential energy is provided. As fluid falls into a set of a piston...  
WO/2004/065792A2
The present invention generally provides apparatus and methods of operating a pumping system. The pump control apparatus includes a first sensor for measuring strain on a structure of the well pumping system and a second sensor for measu...  
WO/2004/040137A1
A pumpjack speed control system includes a user interface, a controller and a variable speed drive. The user interface includes a mathematical representation of the pumpjack geometry which permits the conversion of rod speed profiles to ...  
WO2003031815B1
The pump and pump system (10) of the present invention is designed to remove liquids, gas, sand, and coal fines from gas and/or oil well bores from close to the rock face. The new pump will utilize energy for the "engine" from the surfac...  
WO/2004/001185A1
The invention discloses a pumping unit with a curved and folded beam, comprising a base (1), a motor (2), a transmission mechanism (4), a crank-link assembly (5), a balance weight for the crank (10), a frame (9), a cable hanger assembly ...  
WO2003031815A3
The pump and pump system (10) of the present invention is designed to remove liquids, gas, sand, and coal fines from gas and/or oil well bores from close to the rock face. The new pump will utilize energy for the "engine" from the surfac...  
WO/2004/001184A1
The invention relates an oil pumping unit comprising a support pipe (1), a pumping rod (4), a balance weight (7), a motor and a transmission system installed in the support pipe (1). The transmission system comprises a nut and a screw be...  
WO/2003/093636A1
The invention relates to oil and gas production and can be used for lifting liquid from wells by gas energy. The inventive flying valve comprises a tubular body, a detachable element in the form of a body of rotation and stoppers limitin...  
WO/2003/083303A1
The inventive device comprises a submerged electric motor provided with a hydroprotection and cinematically connected to a driven pump, an operating pump actuated by a hydraulic engine which comprises a reciprocating mechanism for moving...  
WO/2003/078837A1
A hydraulic automatic boosting pump is composed of a fixing joint, casing a reversing valve, a guide valve, a motor-drive automatic device for changing directions, a driving cylinder, a boosting cylinder and super high pressure pipes whi...  
WO/2003/071095A2  
WO/2003/048572A1
Electrically (DC) actuated linear drice pumps and pump systems suitable for downhole/subterranean use, adapted to be powered by (e.g.) solar power. In preferred embodiments, a piston member is connected to an outer pump casing by an elas...  
WO/2003/048578A1
A motor speed controller (100) identifies the position of a pump rod (14). At one or more critical positions of the rod, the motor speed controller (100) adjusts the speed of the motor to change the movement of the pump rod (14). The cri...  
WO/2003/033861A1
The invention relates to oil industry, in particular to production well servicing by means of deep insert sucker-rod pumps. The insert pump is removed from a well. Said pump being replaced and run into an oil-well tubing (2), an anchor c...  
WO2002068788A3
A well pumping unit 30 includes support 11, linear motor 25 having primary motor complex 8 and secondary motor complex 9, polished rod chain 3, polished chain wheel assembly 4, bottom support chain wheel 10, counterweight chain wheel 5, ...  
WO2002086322A3
A fluid controlled pumping system includes a pumping unit (12) disposed within a fluid cavity (13). The pumping unit (12) includes a passage (60) extending to a suction end of the pumping unit. The system also includes a pressure source ...  
WO/2003/031815A2
The pump and pump system (10) of the present invention is designed to remove liquids, gas, sand, and coal fines from gas and/or oil well bores from close to the rock face. The new pump will utilize energy for the 'engine' from the surfac...  
WO/2002/101241A1
A positive displacement pump for pumping fluids from a downhole formation to the earth's surface is provided. The pump (100) first comprises a plunger (130). The plunger is reciprocated axially within the wellbore by a linear actuator (3...  
WO/2002/089307A1
The present invention relates to a circuit for providing conditioned alternating current to a motor for running a well pump reciprocating motor which experiences uneven torque. A system is provided for conditioning the primary electrical...  
WO/2002/086322A2
A fluid controlled pumping system includes a pumping unit (12) disposed within a fluid cavity (13). The pumping unit (12) includes a passage (60) extending to a suction end of the pumping unit. The system also includes a pressure source ...  
WO/2002/081860A1
Apparatus and system control for the removal of fluids and gas from a well comprising winch means (56) for removing the oil (18), a temporary storage tank (22), a bailer tube (90), a bailer tube housing assembly (28), axially aligned wit...  
WO/2002/075105A1
The invention discloses a pumping unit comprising a support frame (11), a linear electric motor for driving the unit having a runner (7) and six stators (9), two chains (3, 6), two wheels (4, 5) and a weight (7). The support frame (11), ...  
WO/2002/068788A2
A well pumping unit (30) includes support (11), linear motor (25) having primary motor complex (8) and secondary motor complex (9), polished rod chain (3), polished chain wheel assembly (4), bottom support chain wheel (10), counterweight...  
WO/2002/064941A1
A bailer device (45) and method capable of recovering liquids and agas simultaneously. The bailer device (45) consists of a bucket-type device (42) attached to an end of a line (8). The bucket-type (42) device is then raised and lowered ...  
WO/2002/057551A1
Method related to the hydraulic dredging of sediment from the sea bottom, the bottom of water dams or the like, inclduding a first operational step where sediment is sucked or pumped through a hose or pipe (2) to a second level located b...  
WO2002031311A3
The present invention generally provides a gas operated pump (30) having a removable and insertable valve (300, 500, 700). In one aspect, the invention includes a pump housing having a fluid path (325) for pressurized gas and a second fl...  
WO/2002/046613A1
A rodless pump is disclosed which is connected to a pressure source via a conduit. In a common oilfield application the pump would be connected to the bottom of a tubing string within the reservoir fluid to be produced. A pressure source...  
WO/2002/031311A2
The present invention generally provides a gas operated pump (30) having a removable and insertable valve (300, 500, 700). In one aspect, the invention includes a pump housing having a fluid path (325) for pressurized gas and a second fl...  

Matches 351 - 400 out of 788