Method of production of gas hydrates and submarine combine for its implementation
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
The present invention relates to the field of extraction of minerals under the seabed.
The known method of extraction of gas hydrates, which consists in the mechanical destruction of the bottom layer with the sharp edges of the buckets moving along the bottom, and the transportation of gas to the surface with a hose (1). The known method is energy-consuming, because the decomposition of gas hydrate under high pressure requires high heat.
In the above link is actually the method of extraction of gas hydrates, which consists in the mechanical destruction of the bottom layer using a Stripping knife moving along the bottom and the transportation of products of destruction to the surface that is present in many other sources. Known methods are complicated to implement and also energy-consuming.
The purpose of this proposal is to simplify the technology and reduce energy consumption in the extraction of gas hydrates in the ocean.
The goal in the method is achieved in that the products of destruction (hydrates) is placed in a shell that collect on the surface and transported them to the place of use under refrigeration transport vessel.
The goal of the combine harvester is achieved in that the platform houses two cylinders, the first of which is a container having disposed therein the horizontal position�the Talne of each other shells, and the second, mounted over a hole, - a boot container, on top of which there are segments with the drive mechanisms, shifting them from the cylinder axis. In addition, on the side surface of the second cylinder opposite the vertical slot installed: cassette with brackets, clip rings, compression clamp and drive mechanism of the traction rings of the shells constituting the lever with threads that have a thread on the gear bracket, and the shell is made in the form of discs of gas-tight flexible material, secured to the ring of steel.
The possibility of realization.
Fig.1 shows an underwater harvester, which implements the proposed method. The harvester consists of a platform 1, moving across the bottom on wheels - 2. Harvester sinks to the bottom with a support vessel on the cable-rope - 3. On the platform 1 is mounted feeder shells - 4, which is fixed to the container 5 with envelopes - 6, which are crashing flat elastic (in the drawing, transparent) discs strung on a steel ring 7, and container download - 8, which is mounted on the outside: cassette clamping ring brackets 9, the drawing unit rings - 10 with the lever - 11, screw in the bracket gear - 12.
At the bottom of the cassette with compression straps is the clamping mechanism of the last - 13. At the top of the container loading location�; and the locking segments - 14 flat ring, which does not allow the shells to float. The segments are the drive mechanisms 15 and shift them from the axis of the container 8. On the platform - 1 installed: Stripping knife - 16, which is a cylinder, rotating on axes - 17 mounted thereon scrapers - 18, and the knife Stripping the bottom with a video camera - 20. Drive axle - 2 and Stripping knives 16 are not shown.
Production of gas hydrates is as follows: Vessel support (management) together with underwater harvester comes on Board in the explored zone of gas hydrate occurrence of hydrocarbons. The ship should be specialized and have on Board a means for the descent of the combine and control them. Underwater harvester on the cable-the cable comes down over the side and upon reaching the bottom starts moving. The Stripping knife - 19 shifts from the route processor small stones and algae, and the Stripping knife destroys the layer of gas hydrates with the host rock at a depth h. Gas hydrates have a density less than unity and through the hole in the platform to float within the container 8, lifting the shell 7 to the level of the segments 14. This edge of the elastic(steel) ring 14, on which is stretched a membrane, falls under the bracket gear - 12. Further filling of the container the products of destruction - 21 causes deformation of the shell in the form of a dome. The sensor detects the filling Obol�chki and instructs the drawing unit rings - 10. A lever 11 is in the position shown by the dotted line, the gear bracket through a vertical slit (not visible in cross section) in the wall of the container 8 smuggles ring 7 in the form of parallel wires to the outside of the container 8, moving on rails - 22. Further, the clamping mechanism clamps - 13 compresses the clamping bracket wires around the ring. The shell 6 to form gas hydrate products - 21 takes the form of a bag, tilted neck down. Further, the lever 11 starts to rotate around its axis, pulling the bracket - 12, and since the gear bracket is located on the edge guides 22, she's out of the loop ring - 7, freeing him. Almost already at this stage the bag of gas hydrate begins to float to the surface, pulling wire ring - 7 from the cracks in the wall of the container 8. For completely unimpeded ascent bags hydrates the drive mechanisms 15 segments 14 to drive them from the axis of the container 8 to the size of its diameter after the sack of gas hydrates - 21 from the container - 8 return them to the place. Upon surfacing bag a lever 11 is driven in reverse rotation around its axis and bracket gear - 12 rises to a horizontal position.
Feeder grids - 4 by moving the bottom of the grid from the container 5 into the container download - 8. Then the cycle of the formation of bags of gas hydrates is repeated.A bag of gas hydrates in surfacing maintains the position hole down due to weight of steel rings - 7. Because after reaching the critical depth of the gas hydrate begins to decompose (3), the gas displaces the water from the bag, thereby slowing down their decomposition (almost stopping, as they cease to touch the water). Thereby ensuring minimal loss of gas during the extraction of gas hydrates.
The operator on Board the support vessel using the camcorder - 20 controls the movement of the harvester along the bottom. On the surface of the transport vessel collects the bags of gas hydrates and puts them in the fridge. Harvester destroys gas hydrate Deposit layer by layer. His rising to the surface only need to replace the membranes in the container - 5
Sources of information
1. Patent Of Russia №2431042.
2. Egorov A. V., Nigmatulin R. I., Rimsky-Korsakov N. And., Rozhkov A. N. The transport of gas hydrates from the bottom of the deep reservoir to the surface. "Nanoalloy in the development of hydrocarbon fields: from nanomineralogy and nanochemistry to nanotechnology". Proceedings of the 3rd International conference. JSC ISIS and WGI, Moscow on October 30-31, 2012. Moscow: Oil and gas, 2012, pp. 145-150.
1. Method of extraction of gas hydrates from the bottom of water basins, which consists in the mechanical destruction of the bottom layer using a Stripping knife moving along the bottom, and transportation of products of destruction to the surface, characterized in that�UKTI destruction (hydrates) placed in an elastic impervious to gas, shell, which collect on the surface and transported them to the place of use in refrigerating chambers escort ships.
2. Underwater harvester for gas hydrate extraction of hydrocarbons from the bottom of water basins of a moving platform with a knife for Stripping the bottom, placed on it a video camera and Stripping knife under the hole in the platform in the form of a horizontally rotating cylinder mounted thereon scrapers, characterized in that the platform houses two cylinders, the first of which is a container having disposed therein horizontally one above the other shells, and the second, mounted over a hole, - a boot container, on top of which there are segments with the drive mechanisms, shifting them from the cylinder axis.
3. Underwater harvester according to claim 2, characterized in that on the lateral surface of the second cylinder opposite the vertical slot installed: cassette with brackets, clip rings, compression clamp and drive mechanism of the traction rings of the shells constituting the lever with threads that have a thread on the gear bracket.
4. Underwater harvester according to claims.2, 3, characterized in that the first and second cylinders mounted on the feeder shells to the hole download and sheath made in the form of discs of gas-tight e�partial material secured to the ring of steel.
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
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.
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
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
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
SUBSTANCE: device comprises an underwater vessel with atmospheric pressure of air, a trolley, a pulp line with a cone-shaped mixer and a jacket, a bracket with a trolley and a jacket, a vertically arranged working organ with a hydraulic motor, its shaft and tillers. On the shaft of the hydraulic motor there is a conical body, tillers are made in the form of cutters and fixed on the conical body. On the side surface of the conical body there are through holes with transverse size of not less than concretion size. The conical body with cutters is installed below the horizontal input section of the mixer. The bracket is connected with the trolley by means of a rotary hydraulic cylinder with the vertical axis of rotation.
EFFECT: increased efficiency of a soil intake device due to achievement of continuity of the process for production of minerals at the specified area of the water reservoir bottom.
2 cl, 3 dwg
SUBSTANCE: method and plant for sapropel production from the bottom of water reservoirs includes its mining with the help of spiral knives on a cone head of auger transport, its lifting to the reducer with two randomly round-directed output shafts, where jackets of two augers are connected with the help of a corrugated reinforced hose, transportation by another auger into floating containers for filling, towing of containers in a bunch by a boat to piers, their lifting along the trestle on a special trolley upwards, and their emptying by tilting onto a vibration sieve for removal of foreign objects (bottles, stones, plants, etc.), collection of sapropel in a hopper - accumulator for transportation to consumers.
EFFECT: higher efficiency of production of organic sapropel and cleaning of water reservoir.
4 cl, 7 dwg
SUBSTANCE: furrows are cut on ice surface adjoining the pit lane that hinders slime processing to feed heat carrier to defrost and to make cutouts in layer body and cavities under ice body bottom surface. Floating hydraulic gun is used to jet lower layers above ice surface edged by cutouts. Then, ice is broken and thawed while exposed underlying soils are jetted by hydraulic gun and sucked by dredger as pulp to using equipment.
EFFECT: higher efficiency, lower costs at low ambient temperatures.
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
FIELD: mining industry.
SUBSTANCE: mining combine has extraction means, on which a body is mounted, having at least one first liquid outlet, for supplying liquid to material. Pipeline, through which liquid is fed to first liquid outlet, contains means for measuring flow and/or pressure of liquid in pipeline, for determining, in which of to layers outlet is positioned. Combine can have at least one second liquid outlet, placed in such a way, that first liquid outlet is in lower layer, and second liquid outlet is placed in upper layer. First liquid outlet can have one of multiple first liquid outlets spaced from each other, and second liquid outlet - one of multiple spaced from each other second liquid outlets. Efficiency of liquid flow through multiple spaced first outlets can surpass those of multiple spaced from each other second liquid outlets. Placement of second liquid outlet in separate body cover is possible. First and second liquid outlets can be directed downwardly relatively to direction of mining combine displacement. Method for controlling depth of position of mining combine extraction means includes placing two liquid outlets, interacting with material extraction means, in a material, while second liquid outlet is placed above first liquid outlet, liquid is fed to first and second liquid outlets and flow and/or pressure of liquid is measured. Layer, wherein liquid outlet lies, is detected, and first liquid outlet is placed in lower layer and second liquid outlet is placed in upper layer, to determine depth of position of extraction means relatively to two layers.
EFFECT: higher precision.
2 cl, 9 dwg
FIELD: means for organic and chemical fertilizers obtaining, particularly to extract sapropel silt from lake and lagoon bottom and for water ponds cleaning.
SUBSTANCE: device comprises water-craft with executive tool and with extraction tool of suction type, transportation mechanism and optional equipment. Executive tool comprises turbofan, bell-shaped case with serrated lower edge and at least two pipelines mounted in the case and used for feeding compressed air and driving extraction tool. Optional equipment includes hoisting means and seriously connected accumulator vessel, bin, sump, evaporator, disperser, pelletizer, drying chamber, metering device and transportation mechanism.
EFFECT: reduced sapropel mass losses, reduced time of sapropel preparation to use.
FIELD: technologies for extracting concretions from sea bottom.
SUBSTANCE: complex has watercraft, extracting machine with take-in device and pulp-pump, supporting pipeline, perforated branch pipe with sizes of apertures less than minimal size of extracted concretions. Perforated branch pipe is positioned at portion of force pipeline adjacent to extracting machine, and is provided with flanges. Apertures of perforated branch pipe are made in form of multi-drive slit channels along whole length of perforated branch pipe, provided with bandages. Slit channels can be made in form of constant width and directed along generatrix lines of perforated branch pipe, and bandages are positioned in direction perpendicular relatively to perorated branch pipe. Slit channels can be made in form of portions serially positioned behind one another and expanding towards movement of hydraulic mixture. Slit channels can be made of spiral shape, an bandages - in form of longitudinal rods.
EFFECT: higher efficiency.
4 cl, 4 dwg
FIELD: technologies for extracting concretions from sea bottom.
SUBSTANCE: device has watercraft, extracting device with collecting means and pulp-pump, force pipeline, perforated branch pipe with sizes of opening less than minimal size of extracted concretions. Perforated branch pipe is positioned in portion of force pipeline adjacent to extracting device and is provided with flanges, and diameter of perforated branch pipe decreases away from extracting machine. Extracting machine is provided with additional pump with latch, mounted in parallel with pulp-pump of extracting machine, and between perforated branch pipe and force pipeline check valve is positioned.
EFFECT: higher efficiency.
FIELD: mining industry, particularly for obtaining minerals from underwater.
SUBSTANCE: plant comprises frame carried by catamaran, drum reels secured to frame at different levels and provided with driving means. Arranged in lower frame base is vessel having chute in which auger is installed. The auger is provided with drive. Frame drums are connected to truck through endless chains to which buckets are hinged. Load cavities of the buckets have orifice arranged from end side thereof and adapted to remove water when buckets move over water surface. Lower bases of the buckets are connected with chains through flexible rods and maintain vertical positions of loads arranged on chains when chain inclination varies. Plant also has compressor connected to float chambers of the buckets by flexible armored tube secured to electric winch rope and by spring. Electric winch is linked with microswitches by electric circuit. Microswitches are adapted to automatically bring electric winch into electric circuit during bucket movement. Catamaran is connected to truck platform through ropes of the winch connected to ship and adapted to lower or lift the truck from ocean bottom. Electric drives of the winches are linked with switch buttons of control panel, which provides remote winch control. Installed in catamaran body are devices to separate concretion mass into fraction and to dehydrate thereof. The devices are made as rotary netted drums with different orifice diameters. The drums are coaxial and spaced apart one from another. Each drum is provided with receiving chamber, drive and fraction outlet. Each fraction outlet is connected to centrifugal means having drive. In accordance to the second embodiment plant has case including three or more frames arranged in staggered order in two rows and centrifugal means. The plant is made as trailed unit and may be unitized with ship. The case is provided with floating pontoon supports. Each pontoon support is connected to compressor and has electromagnetic valve so that the support may immerse the case at proper depth in stormy conditions and emerge thereof after storm termination. Two longitudinal vessels provided with chutes are connected to each frame. Installed in chutes are augers with drives. Shafts with drum reels and drives are secured from both vessel sides at different levels thereof. The drums are provided with endless chains to which buckets are hinged. In accordance with the third embodiment the plant comprises case having three or more frames. The frames are arranged in one or two rows and connected one to another. One longitudinal vessel in secured to each frame. The vessel is provided with chute in which auger with drive is installed. The plant also has case installed on truck, which is mounted on ocean bottom. Conveying wedge-like mechanism is fixedly secured in front of conveyers under truck platform. The wedge-like mechanism is movably installed between drum reels to shift concretion layer from two sides towards bunker bucket loading means.
EFFECT: increased capacity, reliability and durability, improved technical means, workmanship and extended technological capabilities.
3 cl, 16 dwg
FIELD: obtaining minerals from underwater, particularly hydro-mechanized devices for concretion production from seabed.
SUBSTANCE: device comprises movable seabed unit with pulp pump and outlet pipe, pressure pipeline with perforated part, basic ship and connection flanges. The perforated part is formed of parallel pipes connected with outlet pipe of the pulp pump and with pressure pipeline by distribution pipes. Number of pipes and pipe diameter are determined from where D1 is diameter of outlet pulp pump pipe, D2 and n - diameter and number of pipes composing perforated part of pressure pipeline.
EFFECT: increased productivity.
FIELD: rock mining, particularly to develop gravel-sand deposits.
SUBSTANCE: rid comprises body made as U-shaped pontoon and having docking mechanism, which provides connection of similar pontoon sections to maintain floatability thereof in the case of suction head weight increasing. The rig also has suction head made as downhole hydraulic mining tool and having ground receiving means and portal crane for ground receiver lifting and lowering arranged in front pontoon part. The ground receiver is lifted and lowered by suction head rotation about axle arranged in central pontoon part. The rig also has sludge line connected to suction head.
EFFECT: possibility of mining work performing at variable development depth.
FIELD: mining, particularly to produce ore and rock materials, for instance building materials.
SUBSTANCE: mining rig comprises pontoon with suction head having sludge receiving means, as well as crane for sludge receiving means lifting and lowering installed in front pontoon part. Sludge receiving means is lifted and lowered by suction head rotation about axle connected to pontoon. Rig comprises sludge line connected to sludge channel of suction head. The pontoon has U-shaped cross-section and is provided with additional crane arranged in rear part thereof. The suction head is made as downhole hydraulic tool having string composed of two parts in length direction. The parts are pivotally connected one to another. The string is arranged on pontoon so that the parts may be lowered in series. The cranes are portal. The axle is located in rear or front pontoon part.
EFFECT: possibility of mining work performing at variable development depth.
FIELD: methods to develop underwater and flooded ferromanganesian concretion and phosphate shelf concretion deposits, as well as similar flooded and marine deposits mainly including horizontal and flat thin seams located on bed surface.
SUBSTANCE: draghead comprises frame body with upper, lower, side and rear walls, suction pipe of suction dredge, blades secured to intermediate bottom, which may rotate in vertical plane. The draghead is also provided with hydraulic abrasing unit having pressure pipe transversal to upper frame body wall. The pressure pipe is provided with hydraulic heads. The draghead comprises ball-and-socket hinge arranged in upper frame body orifice. Upper horizontal edge of rounded side wall is connected to inner surface of upper wall. Side wall flat part height and rounded part height thereof are related as 1:0.5. Ball-and-socket hinge and rounded part of side frame body have curvature radii in plane view equal to active suction dredge suction radius. Intermediate bottom is installed inside rounded side wall of frame body and may rotate with the use of two hydraulic cylinders about horizontal pin secured to rounded part of side frame body wall.
EFFECT: simplified structure and reduced losses in sludge lines.