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Match Document Document Title
8998585 Liquid pump apparatus and method  
Embodiments of the invention provide liquid pump apparatus. The apparatus may comprise an immersion assembly comprising at least one immersion member having a liquid conduit provided therein along...
8721297 Multistage pulsating airlift pump  
The multistage pulsating airlift pump includes a lowermost air injector stage and at least air injector stage above the lowermost stage installed in a lift pipe. Each stage includes a...
8641894 Mini metering and biological balancer control station  
A Water and Wastewater Treatment Aerated Mini-Dosing air-lift pump System and filter housing, that replaces the conventional dosing pump, controls and additional Tank. It is adaptable to all...
8596989 Dual injection airlift pump  
The dual injection airlift pump has a hollow tubular body through which the liquid being pumped passes upward from the lower intake end to the upper outlet end. Air or other gas is injected into...
8418768 Bypass gaslift system, apparatus, and method for producing a multiple zones well  
The present invention relates to a system, apparatus, and method provided to selectively produce petroleum fluid from multiple production zones well. The apparatus comprises a casing running...
8047808 Geyser pump  
A system pumps liquid. The system includes a compressed air source and a pump for vertically moving the liquid upward. The pump is powered by the compressed air source. The pump includes a first...
7086417 Gas flow control device  
Invention is of an improvement to seat of gate valves used for gas-lift producing oil wells, consisting of a seat lower part of which is curved there being a straight vertical art and a sloping...
6780335 Liquid separation and extraction  
A process for the separation and extraction of liquid from a multi-component fluid within a conduit in which said liquid tends to settle, said process comprising introduction of a coil tubing into...
6638024 Hydraulic air compressor system—employing a body of fluid to provide compression  
A gas compression system including a body of fluid and a down pipe. A first end of the down pipe is positioned to receive a fluid from a source above a surface of the body of fluid and a second...
6357530 System and method of utilizing an electric submergible pumping system in the production of high gas to liquid ratio fluids  
A system for producing production fluids from a wellbore while removing gas that collects in pockets within the wellbore. The system includes an electric submergible pumping unit. The unit...
6224342 Conduit pump system to increase water flow capacity  
An apparatus for increasing the flow of liquid in a conduit provides a barrier positioned in the conduit to prevent flow of liquid past the barrier in a lower region and defining a gap region...
5743717 Nozzle-venturi gas lift flow control device  
A gas flow control device for injecting gas into a production string for recovering pressure and reducing frictional losses, so that critical flow can be reached at lower pressure drops and higher...
5382137 Multiple stage airlift pump  
A multiple stage airlift pump apparatus for elevating water or other liquids using only a single air pressure source. The functioning portion of the airlift mechanism is enclosed within a casing...
5312232 Pump for molten metal or other fluid  
A pump having no moving parts which can be used to pump high temperature molten metal or other fluids in a vacuum or low pressure environment, and a method for pumping such fluids. The pump...
5014789 Method for startup of production in an oil well  
A method of startup of oil production in a gas-lift well in which inlet flow (22) of gas is controlled (46, 42) while means (34, 28) controlling fluid flow from the well is progressively opened....
4767938 Fluid dynamic energy producing device  
A fluid dynamic device is provided which includes a fluid holding and U-shaped conduit having a first leg and a second leg, an electrical generating device positioned between and in flow...
4756671 Low damage hydraulic fish pumping system  
A submersible rotary impeller fish pump augmented by the release of large volumes of pressurized air into the pump's discharge stream during pump operation enables the pumping of fish or other...
4671741 Pipe for elevating liquids through successively arranged accumulating and communicating portions, and device provided therewith  
A device for elevating liquids in which liquid is raised in a pipe under the action of a pressure difference which is smaller than a pressure difference of a solid liquid column having a height...
4645427 Metering pump assembly  
An air lift pump delivers liquid from a sump to an elevated tundish. The tundish is divided by weirs into a plurality of compartments in cascade. Surplus liquid overflows from the upper...
4643650 Fluid-raising apparatus driven by low hydraulic head  
A fluid-raising apparatus includes a compression chamber which receives liquid, from an elevated source, such that gas in the chamber is pressurized and used to lift fluid through a vertical...
4583918 Arrangement for elevating liquid by use of solar and/or wind energy  
An arrangement for elevating liquid by the use of solar and/or wind energy having a pipe immersed in a liquid, a pipe directed upwardly from the surface of liquid and interconnection for...
4573877 Apparatus for elevating liquids including a pair of Venturi pipes having wind as motive fluid  
An arrangement for elevating liquids with the aid of wind has an upper delivery pipe with an upper end connected to a pumping-out device, a lower supply pipe introducable into a water source and...
4527956 Pipe for elevating liquid, and device provided therewith  
A pipe for elevating a liquid by liquid portions separated by gas gaps has a plurality of passages each having an inner diameter selected so as to form a stable meniscus film at the borders...
4519749 Wind-solar lift pump  
A device for the lifting of liquid solely by the use of solar energy is constructed of two vertically disposed pipes, one pipe extending below the surface of the liquid and the second pipe...
4508971 Two reservoir solar air-weight impelling hydro power system  
Using a two Reservoir System, a portion of the water moves from Reservoir to Reservoir. In its path, it collects air, which is expanded by Solar Energy, which helps to move weights, by an...
4397612 Gas lift utilizing a liquefiable gas introduced into a well  
A gas lift method for lifting a well fluid from a well, the method comprising feeding a liquid lifting medium into a first well conduit of the well to maintain a liquid column of liquid lifting...
4390061 Apparatus for production of liquid from wells  
Apparatus for production of liquid from wells such as petroleum wells includes well pipe that extends from the surface downwardly to the level of liquid standing within the well. A string of...
4385871 Wind driven air pump  
An improved pump for lifting water from an underground source utilizes a wind motor for driving an oil-less air compressor eliminating oil contamination of ground water which is forced to the...
4365666 Heat exchanger  
A heat exchanger including a heat-dissipating element, a heat-receiving element and a circulating means for circulating a liquid in a closed cycle between the heat-dissipating element and the...
4355513 Method and apparatus for producing electricity from thermal sea power  
A method and apparatus of producing useful energy from a large body of water having cold subsurface water and water at the surface which is warmer than the subsurface water. The apparatus...
4316680 Air-assisted hydraulic re-circulatory bouyancy pump  
A pump system for being set up to work in deep water, for use in sea bed mining; the system including three pipes, a first of which carries compressed air downward and to a lower portion of a main...
4248043 Apparatus for storing energy and generating electricity  
Disclosed is apparatus for storing energy and generating electricity. The apparatus comprises (1) first means (10) for storing energy in the form of compressed gas and (2) second means (12) for...
4180980 Hydropressure power  
A method and apparatus for releasing for use, air that has been absorbed under pressure in sea water or in any other large free body of water. An elongated conduit, or equivalent means, is...
4171187 Air injection sub  
An air injection sub for use with a dual conduit drill pipe string is provided having inner and outer concentric tubular members which are connected to the corresponding inner and outer conduits...
4135364 Air lift pump energy conversion apparatus  
This apparatus has a plurality of vertical lift tubes immersed in water and arranged to discharge water into a hood at their upper ends for driving a turbine-like fluid motor. Each lift tube...
4110980 Apparatus for producing mechanical kinetic energy from falling water  
Agitation of the surface of a body of water by a falling stream of water results in the entrainment of air bubbles which are carried underneath the surface. These air bubbles are collected in a...
4083660 Gas drive oil well pumping system having mixing means for the gas/oil mixture  
The system incorporates conical screens spaced along the producing tubing as mixing means to reduce the separation of gas and oil and enhances the lifting power of the gas. Supplemental lift...
3971593 Method of extraction of nodular sediments or the like from the sea floor and an installation for carrying  
In a first step, a mixture of nodular sediments and sea water is collected by dredging along the sea bed and lifted into the separation compartment of an underwater control and storage station...
3962046 Method and apparatus for testing properties of liquids  
Apparatus for measuring the dissolved oxygen content of water comprises an open-ended duct immersed in the water in an upright position, an oxygen-detecting probe in the lower end portion of the...
3930754 Portable water sampling apparatus  
Portable, self powered water pumping apparatus for use in sampling water in remotely located wells comprises a wheeled hose reel cart which supports a long length of plastic hose or tubing. The...
3829245 GAS WELL EQUIPMENT  
A purge pipeline for use in purging a natural gas productive formation of water is characterized, such as through including fittings, by having in the wall thereof at each of a plurality of...
3816026 AQUARIUM CIRCULATING APPARATUS  
An airlift assembly for use in a filter bowl associated with an aquarium tank for pumping the filtered water by means of forced air bubbles expelled through a tube of the assembly thereby...
3765727 PROCESS AND APPARATUS FOR TRANSPORTING MINED DEPOSITS FROM THE SEA FLOOR  
Air is withdrawn from an air lift hydraulic pipe to control turbulence and velocity of flow through the pipe. The air is withdrawn at a location substantially above the air injection station where...
3718407 MULTI-STAGE GAS LIFT FLUID PUMP SYSTEM  
A gas lift pump system utilizing high pressure gas from a pump delivered down a pipe string to a jet pump at the producing zone of a well to provide an initial lift for the fluid and to admix gas...
3672790 AIR LIFT PUMP  
3592560 AIR-OPERATED EDUCTOR CONTROL  
A liquid waste collection tank is provided with an airlift for periodically pumping out the waste. The airlift comprises an upright eductor pipe dipping into the waste, an air supply line...
3545068 PRESSURE AMPLIFICATION  
3542490 WATER AIR LIFT DEVICE  
3444821 AIR-INJECTOR MEANS FOR AIR-LIFT WATER PUMPS FOR REMOVING SCUM OR SLUDGE FROM SEWAGE TREATMENT SETTLING TANKS  
3421449 GAS LIFT WELL PRODUCTION APPARATUS  

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