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JPS57169194A |
An apparatus and method for pumping oil or other fluids from the earth is disclosed as using a submersible pump which is suspended in a hole drilled into the earth by means of a flexible cable. Encased in a flexible sheath with the cable...
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JPS57168074A |
A power transmitting device for an oil well pump of the type which utilizes a rotating power source and provides an input capable of operating a pair of cranks for driving a reciprocating pump. The power transmitting device includes a fi...
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JPS5745420Y2 |
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JPS57140578A |
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JPS57137672A |
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JPS57124081A |
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JPS57113987A |
PURPOSE: To prevent a pump from wearing and corroding due to suspension material and lengthen its life by jetting lubrication oil from a lower circumference of a pump plunger formed under a main plunger along a circumferential inner face...
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JPS5792297A |
Control apparatus and method for reducing oil-well pounding and preventing subsequent damage to a producing oil well and an oil-well pump assembly, while maintaining optimum oil-well productivity is disclosed. The control apparatus inclu...
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JPS5786581A |
PURPOSE: To enable extremely effective clear of sands, slug or other substances contained in a raw oil which is deposited on the inner periphery of a pump cylinder by blasting a high pressure working oil from a lower love of a pump plung...
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JPS5762981A |
PURPOSE: To obtain a smaller and simpler underwater pump which has a driving unit capable of taking any installation place and can take a high lift head by a method wherein the driving unit of the under water pump body is operated in con...
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JPS5724475A |
PURPOSE: To make the water level in a well constant, promote the springing-up of water and operate a pump more stably by a method wherein a partition part is provided in a bottom part of a well and the lower end of a suction pipe is open...
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JPS5723465U |
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JPS5723464U |
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JPS5718480A |
A double-acting downhole pump operated by gas has interconnected pistons 36, 38 defining pumping chambers 46, 48 and actuating chambers 50, 52, a changeover valve 42 controlling gas flow to and from the actuating chambers being gas opera...
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JPS56167792U |
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JPS56154184A |
PURPOSE: To relieve a power loss and to improve an efficiency of a motor, by a method wherein an inverter is employed at a high-voltage part, and a power source fed to a underwater motor is generated in 3-phase and is converted into high...
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JPS5669482A |
PURPOSE: To facilitate the pass of the connection part of a motor and a pump along the curvature of a well pump by installing a cushion element made of hard rubber at the connection part of a pumping pipe and the pump and on the motor si...
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JPS5669483A |
A fluid pump with a standing valve above a traveling piston within a housing bore. The traveling piston is mounted on a rod which extends through the housing to a drive mechanism. The traveling piston is constructed so that on the downst...
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JPS5664178A |
An apparatus is provided for pumping fluid from a subterranean well through a tubing string. A pressure actuated subsurface pump and a surface unit are in fluid communication with opposite ends of the tubing string. The surface unit cycl...
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JPS5648494A |
The present system and apparatus for pumping an oil well damps out the stretch and over travel in sucker rod over travel particularly when the rod string approaches its point of reversal of direction either up or down. This is accomplish...
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JPS5625595A |
An oil well pumping apparatus comprises a pump 10 mounted above ground and driven by a motor 11 to generate a first power fluid stream which is lead to a hydraulic pressure intensifier 4 mounted below ground within the well casing 1 and ...
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JPS5544215B2 |
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JPS5542280B2 |
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JPS5536840B2 |
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JPS55500661A |
A wind machine has a tower frame formed by four converging beams. At the top of the tower is a gear head connected to a wind driven rotatable multibladed rotor. Connected to the gear head is a vertical shaft which is reciprocated vertica...
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JPS55117100A |
PURPOSE: To make it possible to effectively obtain a large pumping rate at initial pumping stroke of each of pump-up pipes, as well as large pumping power, by providing a bubble pump having two pump-up pipes and two air pipes, the supply...
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JPS5529254B2 |
An engine exhaust recirculating valve is operated by a solenoid. The valve is normally open, but has an electronic control circuit, including an engine speed transducer, which energizes the solenoid to close the valve when the engine spe...
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JPS5523357B2 |
The invention provides a pump adapted inter alia for the intake and delivery of liquid such as water in wells or relatively deep bodies of water. The pump comprises a rigid-walled chamber, adapted to be immersed in the liquid to be sucke...
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JPS5582868A |
To minimise the power absorbed by a positive displacement pump system used where the requirement for pressure fluid varies inversely with the pump speed, notably in automobiles, the system provides two separate delivery passages (61, 62)...
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JPS5521195B1 |
1352109 Reciprocating pumps F C GREER 13 June 1972 [18 June 1971] 27637/72 Heading F1A A liquid piston pump, e.g. for pumping sandcontaminated high-viscosity oil from a well, or mud or acid, comprises a tube 37 containing a bucket piston...
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JPS5572692A |
PURPOSE: To provide the easy maintenance operation of pump by installing a slit to pass the suction part and feeding part of pump in the lower edge of a pressure tank and by fixing detachably the outer periphery of the pressure tank to t...
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JPS5572691A |
PURPOSE: To provide the convenient handling of heat holding device improving the heat holding effect by elongated the length of the lower edge of a pressure tank and installing a plate detachably forming a notch in this edge and subseque...
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JPS5569185U |
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JPS5564483U |
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JPS54182750U |
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JPS54125502A |
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JPS5442681A |
A control unit for oil wells for maximizing the efficiency of a producing oil well field, including the use of a variable speed AC motor powering each oil well pump jack, which enables the operator to control the strokes per minute on th...
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JPS53121618U |
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JPS5358803A |
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JPS5319774U |
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JPS5319775U |
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JPS538481A |
A jack pump, such as the type capable of use in pumping crude oil from an oil well, the jack pump including a double acting piston and cylinder motor with the piston rod of the motor being adapted to be connected to the polished rod proj...
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JPS52153870U |
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JPS5287701A |
A purged valve assembly and method of sealing for a liquid transmitting casing that extends into a storage reservoir for liquid or liquified gases. The assembly includes a normally closed spring-biased foot valve mounted on the lower end...
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JPS5223704A |
PURPOSE: A new device for a large diameter pump whereby even a large diameter cylinder can be used.
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JPS522363B1 |
A subsurface well pump actuator drive having a pair of slave cylinders and a pair of auxiliary control cylinders mounted on a wellhead and connected to a pumping string of rods for reciprocal pumping movement of a given stroke. A closed ...
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JPS525004A |
PURPOSE: A running control device of an automatic well-pump to prevent an unloaded running, in case air is sucked into the pump for instance.
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JPS51136961U |
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JPS51122054U |
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JPS5191003A |
A down hole pump and, more particularly, a turbine driven geothermal down hole pump has a housing insertable in a well casing to a depth wherein geothermal liquid is exposed to the inlet of the pump contained in the housing and with a tu...
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