Bubble gas lift system and bubble gas lift method

FIELD: gas industry.

SUBSTANCE: group of inventions relates to lifting of solid material from bottom of basin, such as deep sea, lake or river, above water surface. In bubble gas lift system (10) in upper end section of lifting pipeline (11) is arranged under pressure chamber (21). Chamber generates pressure in upper section of pipeline (11) in order to suppress increase in volume ratio of bubbles to mixed fluid extending inside pipeline (11), in shallow region. Upper end of pipeline (11) is not opened into atmosphere, but is introduced into pressurised chamber (21), so as to prevent expansion of gas bubbles. Deaerator (14) for removing bubbles, separated by centrifugal force, is also provided in median section of pipeline (11) in shallow area to provide more uniform distribution of bubbles within entire pipeline (11).

EFFECT: inventions are aimed at providing efficient gas-lift system of target material in form of suspension, having a higher specific weight than surrounding water, which makes system and method efficient and operational even in a deep water area.

12 cl, 5 dwg

 



 

Same patents:

FIELD: engines and pumps.

SUBSTANCE: invention relates to nuclear industry in part of nuclear wastes processing, namely, to devices for more complete discharge of radioactive residue from storage reservoirs, and may be applied in chemical, petrochemical and other industries. A pump comprises a body, an air distributor, comprising valves of compressed air supply, spent air discharge and underpressure supply into a body, a pulse line, an injection pipeline with an outlet ball valve, a control system and an inlet valve. The inlet valve is equipped with a slide valve interacting with the end of a seat made in the form of a pipe and connected by a shaft with a pneumatic cylinder stem. Suction nozzles are connected to bottoms of bodies along the perimeter, at the end of which there are slots that expand inside, and plugs are fixed to the ends. According to one of the versions, the pneumatic cylinder is installed in the service zone and is connected to a control system, electric pneumatic distributors of which that control operation of the underpressure supply valve and the pneumatic cylinder of double-sided action are connected in parallel. According to the second version, the pneumatic cylinder is installed on the pump body, and the upper cavity of the pneumatic cylinder is connected by a pipeline to the pulse line. In the lower cavity of the pneumatic cylinder there is a return spring installed, the force of which is less than the force of the pneumatic cylinder at working pressure and makes at upper and lower positions of the pneumatic cylinder pistons of accordingly 0.4 and 0.6 of the pneumatic cylinder force.

EFFECT: development of a device for more complete discharge of radioactive residue from storage reservoirs.

6 cl, 3 dwg

FIELD: oil-and-gas industry.

SUBSTANCE: proposed device consists of power supply, electric heaters arranged ion the well and three identical pressure pipes, each consisting of two parts. Lower part is located in the well bottom area and made of high specific resistance alloy Upper part is made of metal or alloy with low specific resistance. Every said pipe nearby well mouth is equipped with bushing and terminal assy whereto connected is the three-phase power supply phase. Outer surface of every pipe is electrically insulated. Three pipes in the well mouth zone are integrated by manifold equipped with outlet pipe tightly penetrating via lock into well bottom. Every pipe nearby well mouth is provided with bushing and terminal assy. Said pipes are connected via terminal assemblies with DC source.

EFFECT: simplified design and hardware of oil well pressure pipe, higher reliability and lower costs.

Air lift // 2497026

FIELD: metallurgy.

SUBSTANCE: air lift includes a lifting pipe, an air head piece with a suction branch pipe, a separator with a cover plate, and a drain pipe. The lifting pipe has a stepped extension in upward direction. In the separator cover plate there mounted is a cylindrical projection located coaxially to the lifting pipe and laid with stone cast tiles. Projection diameter, projection length and distance from the end face to the mouth of the lifting pipe exceed diameter of the outlet opening of the air lift lifting pipe.

EFFECT: increasing service life of an air lift.

1 dwg

FIELD: engines and pumps.

SUBSTANCE: gas-dynamic wave pressure exchanger for ICE has crankcase exhaust vent device 11. Said device 11 is communicated with suction chamber of cellular rotor 4 via opening in distribution disk arranged at cold gas side of wave pressure exchanger 3.

EFFECT: higher efficiency of crankcase breathing.

4 cl, 3 dwg

FIELD: power engineering.

SUBSTANCE: in a pulsation valve submersible pump comprising a body, a pulse line, an inlet ball valve with a limiter of ball raising, an injection pipeline with an outlet ball valve, a chamber of lower nozzles, inside of which there is a shaft, which connects lower nozzles with a rotation drive and a control system, the chamber of lower nozzles is arranged in the body beyond a partition, which separates the body into the chamber of lower nozzles and a discharge chamber. The chamber of lower nozzles and the discharge chamber communicate with each other via a gap above the partition installed under the pulse line inlet into the body. In the partition there is a hole, in which there is a relief valve with a ball floating in water.

EFFECT: invention makes it possible to expand process capabilities of a pump due to realisation of simultaneous mixing and discharge of a suspension from a reservoir, and to increase efficiency of its operation.

2 cl, 3 dwg

FIELD: engines and pumps.

SUBSTANCE: water lifting method involves an aeration operation of liquid being lifted upwards due to air ejection from atmosphere with a jet of the same liquid leaving the well through a branch pipe to water surface under action of excess pressure in the well, which is created with weight of the water lifting device, a ballast and axial force. As ballast, water is used, which is lifted out of the well, and axial force on the water lifting device housing is created with weight of an operator. Return of the water lifting device to initial position is performed due to Archimedes buoyancy force acting on the hollow housing of the water lifting device at its submersion into water. The water lifting device includes a hollow tight housing fixed on a water lifting pipe, in which a water outlet branch pipe of the well and a mixing chamber are arranged. The mixing chamber is connected through an air tube to atmosphere. In upper part of the lifting pipe the provision is made for a water collector with its unloading devices, into which air and water lifting pipes are directed. There are hydraulic sealing devices of an annular gap between walls of the housing and walls of a casing pipe of the well. At upper point of the lifting pipe there located is a pressure roller, through which a rope is hitched. One end of rope is fixed, and free end of rope is equipped with a step for arrangement of the operator.

EFFECT: invention allows reducing labour intensity of water lifting out of the well.

FIELD: oil and gas industry.

SUBSTANCE: oil production method includes delivery of a working fluid to an injection well and extraction of oil products through a production well with further separation of associated gas from oil and its burning. Burning of associated gas is carried out with plenty of outdoor air. Products of associated gas combustion are cooled; water and liquid carbon dioxide gas are separated and remaining gaseous phase is released. In order to obtain a working fluid liquid carbon dioxide gas is mixed up with water steam generated during heating of prepared water by products of associated gas combustion.

EFFECT: production effectiveness, ecological and economical efficiency of oil deposits development due to use of products of associated gas combustion.

1 dwg

Airlift // 2482340

FIELD: machine building.

SUBSTANCE: air lift includes compressor 1, receiver 2, supply and lifting pipes 3, 4, and distributing device 5. Lifting pipe 4 is equipped with head piece 7 made of external and internal pipes 8, 9. Pipes 8, 9 are interconnected through valve 13 containing sleeve 14 connected to float 15. Pipe 8 is interconnected through non-return valve 10 with the environment, and pipe 9 is connected through non-return valve 11 to supply pipe 3. Compressor 2 is connected to lifting pipe 4 by means of throttle 12. Suction branch pipe of compressor 1 is interconnected by means of pipe 16 equipped with valves 17, 18 and non-return valves 19 and 20 with distributor 5 and with lifting pipe 4. Head piece 7 is equipped with pressure sensor 21 and level sensor 22. Feed valve 19 connects pipe 16 to atmosphere at pressure drop below the specified level.

EFFECT: increasing liquid lifting height.

1 dwg

FIELD: oil and gas industry.

SUBSTANCE: plant for fluid pulling out from the well is obtained via tubing string filled with material absorbing fluid. The bottom end of the string is mounted in fluid layer and the top one - in vacuum tank equipped with air and drain valves connected by the rod, in which there moves a float gauge that opens and closes the valves under the influence of float gauge movement on the top and bottom limiters.

EFFECT: possibility to perform fluid pulling out of the well without application of downhole pumping equipment.

3 dwg

FIELD: machine building.

SUBSTANCE: method involves lifting of elements of underwater mineral deposits consisting of flow of transporting medium, transportation of hydraulic fluid in supply airlift pipeline, supply of compressed air to mixer of lifting pipeline, creation of multicomponent mixture after compressed air is supplied to hydraulic fluid mixture and transportation of multicomponent mixture flow in lifting airlift pipeline. At that, first, phantom cross section is chosen in the flow intended for transportation of elements of underwater mineral deposits, and for chosen phantom cross section there specified is the range of change of pressure value. Flows of water and air-and-water mixture are created in supply and lifting pipelines by supplying compressed air with the compressor to mixer of lifting pipeline Value of actual pressure is monitored in the chosen phantom cross section, as well as actual range of change of the monitored value is determined. Compliance of the certain actual range to the specified one is checked, and elements of underwater mineral deposits are supplied to water flow of supply airlift pipeline in case certain actual range belongs to the specified one.

EFFECT: increasing development efficiency of underwater mineral deposits at big marine depths due to shortening the total start-up time of airlift plant; avoiding the disturbance of transportation of solid material and gumming of pipelines during airlift start-up.

2 cl, 3 dwg

FIELD: oil and gas industry.

SUBSTANCE: according to the method upper layer of gas hydrate mass is melted gradually by heating gas hydrate mass in bottom sediments of a water body up to temperature of 50-60°C. Heating is made by a heating element made as blade edge located along diameter of a cargo container lowered from a flotation device. The flotation device is made as a mobile underwater vehicle with retractable tract in the form of a container equipped with blade edge in the bottom part connected to heating elements inside container. Stability of the mobile underwater vehicle is endured in regard to the bottom of the water body. Container is rotated and electric current is supplied to heating elements. Gas hydrate stratum is heated up to 50-60°C. The container is lowered with rotation to the gas hydrate stratum with provision of single-point recovery of hydrates from the above stratum in solid state.

EFFECT: reduced material and operational expenditures and ecological consequences at gas hydrate extraction territory.

2 cl, 1 dwg

FIELD: oil and gas industry.

SUBSTANCE: method includes production of gas hydrates, their transportation to a consumer and decomposition of gas hydrates with gas recovery. Gas hydrate recovery process is implemented at thermodynamic parameters corresponding to formation of gas hydrates. Transportation of gas hydrates is performed in sealed and heat insulated cargo spaces of a vehicle at thermodynamic parameters excluding decomposition of gas hydrates. Decomposition of gas hydrates with gas recovery upon completed transportation is made by reduction of pressure in cargo space of a vehicle up to atmospheric pressure. Process of gas hydrate recovery and their storage during transportation is carried out at temperature of -0.2°C and pressure of 1 MPa. At that gas hydrates are withdrawn in hydrate state as briquettes by n-containers run down in sequence to submarine reservoir of gas hydrates from a submarine vehicle. The submarine reservoir of gas hydrates is heated up by heating elements located at edges of n-containers. Each n-container is buried in sequence to submarine reservoir of gas hydrates to the depth twice exceeding the container height. Upon loading of each n-container by free falling of gas hydrates they are loaded to cargo space of a vehicle. The vehicle is made as a submarine vessel. While heating submarine reservoir of gas hydrates only reservoir section under the container is heated. Containers are filled with gas hydrates represented by briquettes of natural metastable mineral in hydrate solid state.

EFFECT: improving efficiency in recovery and transportation of gas hydrates due to reduced consumption of energy and reduced capital and current costs.

2 cl, 1 dwg

FIELD: mining.

SUBSTANCE: method comprises mechanical destruction of seafloor layer by an stripping knife moving along the seafloor, and transportation of destruction products to the surface. The products of destruction are placed in elastic, gas-tight shells, which are collected along the surface and transported them to the place of use in the transportation vessel refrigerators. The combine is a moving platform with a knife for seafloor cleaning with the mounted video camera and the stripping knife under the hole in the platform designed as a horizontally rotating cylinder with the scrapers mounted on it. The platform has two mounted cylinders, the first is a container with shells located horizontally one above another one, and the second one, mounted above the hole, is a loading container in the top side of which the segments with drive mechanisms shifting them from the cylinder axis are located.

EFFECT: improvement of efficiency of ocean production of gas hydrates.

4 cl, 2 dwg

FIELD: mining.

SUBSTANCE: device comprises a clamshell ladle fitted with levers with bosses and flexible links, a sensor, a flexible cavity, a float. The device is also fitted with the vessel designed as a bent cylinder with the tapered extended cylindrical part which is inclined to the opposite side from the self-contained unit and through the frame is interconnected with it. The vessel is fixed on a cable with a possibility of vertical movement. The extended cylindrical part of the vessel is fitted with a sensor interacting with a sensor located in the container under a flexible cavity which is filled with liquid with a specific gravity, less than that of environment. The unloading hole of the extended cylindrical part of the vessel is fitted with the throwing-back tray. The distance from the clamshell ladle centreline to the tray in the thrown-back situation and distance from the lower edge of the clamshell ladle to the tray in the thrown-back situation are determined by the mathematical relations given in the description.

EFFECT: improvement of efficiency of underwater development of minerals.

5 cl, 3 dwg

FIELD: mining.

SUBSTANCE: device comprises a delivery pipe for supply of minerals designed from top to bottom with a bell and a pipeline for coolant supply. The delivery pipe is designed as variable section pipe with formation of alternating cylindrical compartments with inlets and outlets, and the top parts of some compartments are arranged with inclination as cross-lying with reference to other compartments, and the lower parts of compartments are designed conical, interconnected with coolant supply pipelines. Outlets of compartments are located from inlet holes at the distance necessary for passing and maintaining of soil and ice bodies in a suspension provided that: L≥3·dmax, where L - is the distance between inlets and outlets of compartments, dmax - maximum diameter of soil and ice bodies.

EFFECT: improvement of efficiency of production of minerals from continental shelf.

1 dwg

FIELD: mining.

SUBSTANCE: device includes a conveying capacity in the form of a grab bucket provided with levers with thrusts and flexible links, a start sensor located in a container and a flexible cavity. The latter is filled with liquid with a capsule located in it and containing reagents. A capsule throw valve is located at the top of the flexible cavity. Radio beacons are fixed inside the container, on its side walls, and coupling rings are located on the outside. Sodium chloride (3%) and sodium hypochloride (0.3%) are used as reagents.

EFFECT: improving efficiency of operations.

2 cl, 2 dwg

FIELD: mining.

SUBSTANCE: device includes a grab bucket with armoured jaws and flexible links by means of which the bucket is connected to a gas generator and to a flexible cavity start-up sensor, which are located in a container, and a float. The grab bucket is made from elastic material, and a flexible cavity is equipped with a cable located inside the cavity in the centre, the lower end of which is attached to a partition wall additionally installed between a gas generator and the flexible cavity, and the upper end of the cable is attached to the float. As the elastic material of the grab bucket there used is for example thermopolyutherane. The upper edge of the grab bucket is perforated. Armoured jaws of the grab bucket are provided with holes uniformly distributed throughout the surface area. A full air discharge valve is located at the top of the flexible cavity. The float is made in the form of a radio beacon.

EFFECT: improving efficiency of operations.

6 cl, 3 dwg

FIELD: oil and gas industry.

SUBSTANCE: system contains at least one modular shaft with the central unit placed under water and an uprise buried to the ocean bottom and at least one air-lock chamber to transport duty shifts of workers, materials and equipment. Besides the system comprises at least one drilling area with a horizontal tunnel branched from the uprise in the central unit, and an inclined area for delivery of drill pipes and a vertical area in which bottom part there is a wellhead of at least one well. A power cable and control systems as well as pipeline in the protective shell for oil and gas transportation are connected to the modular shaft.

EFFECT: increasing development efficiency of subsea oil and gas deposits.

9 cl, 56 dwg

FIELD: mining.

SUBSTANCE: proposed device comprises mineral feed pipe aligned inside hollow pipe with funnel at its bottom, and coolant feed pipeline. Additionally, this device comprises coolant feed pipelines distributed uniformly over hollow pipe perimeter, in funnel walls and in extra struts of said funnel. Hollow pipe is located at the level of funnel strut. Funnel strut inner walls are perforated. At the level of funnel, hollow pipe has vertical cut-outs furnished with plugs from top and bottom. Funnel strut top parts are also equipped with plugs.

EFFECT: continuous mining, lower power consumption and extraction costs, minimised negative effects on contamination of environments.

2 cl, 2 dwg

FIELD: oil and gas industry.

SUBSTANCE: method for development of methane hydrates is based on their breaking by water jets at a temperature of more than 285K with the rate more than 1 m/s in a pulse mode with a frequency in the range from 1 up to 200 Hz, gasification and lifting from the seabed. A device for development of methane hydrates contains a floating device, handling equipment, a power generating unit, pipelines, a control unit and an underwater methane hydrate development unit in which body there is an installed infrared heater, a water-jet monitor with pressurised water feed equipment and a gas bleeder.

EFFECT: improvement of energy efficiency for underwater development of methane hydrates and their lifting to the floating device.

2 cl, 1 dwg

FIELD: mining industry.

SUBSTANCE: device has bottom power assembly, connected to base watercraft by force pipeline with conical perforated portion, adjacent to bottom power assembly, conical perforated portion of force pipeline is made of sheet of elastic material and provided with rigid branch pipes with flanges on both ends. Flanges of branch pipes are interconnected by round-link chains placed along flanges perimeter, which are connected to flanges of power assembly and force pipeline branch pipe.

EFFECT: simplified construction, lower costs, higher efficiency.

4 cl, 4 dwg

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