Extraction method of gaseous hydrated hydrocarbons from bottom of water reservoirs and device for its implementation
SUBSTANCE: method consists in destruction of the bottom layer with sharp edges of buckets fixed on vertical conveyor belt; conveyor moves along the reservoir bottom by means of caterpillar drive relative to which the conveyor belt moves vertically with possibility of penetration into the bottom. At that, gaseous hydrate is lifted to the zone isolated from water with surface of turned-over funnel, where it is heated, and evolved gas subject to additional heating is transported to the surface by means of the hose fixed on the funnel top. Also, device for the method's implementation is proposed.
EFFECT: increase in production of gaseous hydrated hydrocarbons.
2 cl, 1 dwg
Now the present invention relates to the field of mining, located on the seabed.
The known method of gas hydrate production of hydrocarbons, which consists in the formation of thermal field in the lower layer of the geological structure using wells and the extraction of gas released from the upper reservoir . The known method is not applicable in the marine environment.
There is a method of extraction of gas hydrates from the sea floor, which consists in raising them to the surface using a self-propelled harvester with controls, communications, mining and loading . This method is used as a prototype for essential features.
The goal in the way that is solved in that the bottom layer ruin with sharp edges of buckets mounted on a vertical conveyor belt, moving across the bottom of the pool using caterpillar tracks, on which the conveyor belt moves vertically, with burial in the bottom, while the gas hydrate raise in an area isolated from the water surface inverted funnel, where it is heated, and the liberated gas is transported to the surface using a hose attached to the top of the funnel, exposing it to more heat.
The goal in the known device, containing self-propelled combina controls, communication, extraction and loading, the conveyor belt with fixed on her buckets and vessel maintenance is achieved in that the conveyor belt mounted for movement in a rectangular frame located in the dual vertical hole is perpendicular to the horizontal thruster on tracks, vertical side thereof rigidly connected with screw propellers, able to bury the lower end of the frame into the sediment to a depth of not less than 10-15 m
The upper end of the frame is rigidly fixed in the hole of the annular float on the top ring which is installed heaters, the outer edge of the ring connected to the bottom edge of the inverted funnel, the inner surface of which is covered with a heat insulator, and the top is connected through the valve and the heater hose to transport, leaving the surface, the valve is connected with an automatic restraint system the surface of the water inside the float at the level of its lower edge.
The possibility of realization
The drawing shows a Device for the extraction of gas hydrates from the bottom of the water basins", which implements the proposed method. The device includes: caterpillar mover - 1 moving over the bottom 2 with caterpillars - 3. Caterpillar propulsion perpendicular to its plane of screw propellers - 4 fixed frame 5, in which d is ijesa conveyor - 6 with the location of the bucket 7. Frame 5 can be moved up and down through a rectangular opening 8, in the case of propeller - 1. At the upper end of frame 5 is fixed to the float in the form of a ring - 9. Part of the conveyor belt - 6 passing through the hole of the float 9, gets in a closed volume, a limited conical (funnel-shaped) surface - 10. The inner surface of the cone is covered with the insulating material 11. The lower edge of the funnel 10 and the outer edge of the upper ring of the float 9 is firmly and tightly connected. On the upper ring of the float installed heaters - 12. At the top of the fixed cone valve 13 and the heater 14, after which attached transporting hose - 15.
Device for extraction of gas hydrates works as follows. With support vessel (not shown) the device goes down to the bottom of the basin, while the frame of the conveyor - 5 maximum raised above the horizontal thruster - 1. As a result, the mover stands on the bottom of caterpillars - 3. Next, the engines begin to work conveyor 6 and screw propellers - 4 (not shown). The cutting edges of the buckets - 7 destroy gas condensate together with the host rock and carry them into the inner volume of the funnel - 10. Inside the funnel heaters - 12 heat the condensate, and he goes into the gas phase. The gas displaces water from podkonicky surface - 10 down to the level of the lower edge of the float 9. The breed is moving in the bucket - 7 under the cone - 10, gives the gas and breaks down in developed buckets space. Reaching the lower boundary of gas condensate, screw propellers - 4 stop, and tracked propulsion begins to move in the direction of horizontal framing And passing a wide swath of the belt conveyor 16. The valve 13 by means of any type of sensors, such as ultrasonic, installed at the top of the cone, or conductivity, is installed on the lower ring of the float provides for the maintenance of the water surface on the lower level of the float and the output produced combustible gas through the hose 15 to the surface. Since the expansion of the gas, passing from a high pressure on the bottom (this can be hundreds of atmospheres) pressure-transporting hose is cooled immediately after the valve 13 is a heater 14, preventing the formation of ice in the hose - 15.
The presence of the float 9 is necessary to ensure sustainability of the system at large depths of gas condensate. In this case, frame height - 5 can reach hundreds of meters, and during the horizontal movement of the caterpillar conveyor frame may be removed.
Sources of information
1. Patent of Russia №2306410.
2. Patent of Russia №2004106857 from 20.08.05.>
1. Method of production of the gas hydrate hydrocarbons from the bottom of the water basin, which consists in mechanical destruction of the bottom layer and the raising of decay products with the help of buckets on the conveyor belt, characterized in that the bottom layer ruin with sharp edges of buckets mounted on a vertical conveyor belt, moving across the bottom of the pool using caterpillar tracks, on which the conveyor belt moves vertically, with burial in the bottom, while the gas hydrate raise in an area isolated from the water surface inverted funnel, where it is heated, and the liberated gas is transported to the surface using a hose attached to the top funnel, subjecting it to additional heating.
2. The device for implementing the method according to claim 1, comprising a vertical conveyor belt with fixed on her buckets and vessel support, characterized in that the conveyor belt mounted for movement in a rectangular frame located in the dual vertical hole is perpendicular to the horizontal thruster on tracks, vertical side thereof rigidly connected with screw propellers, able to bury the lower end of the frame into the sediment to a depth of not less than 10-15 m, while the upper end of the frame rigidly for the Sol in the hole of the annular float, top ring which has heaters, the outer edge of the ring connected to the bottom edge of the inverted funnel, the inner surface of which is covered with a heat insulator, and the top is connected through the valve and the heater hose to transport, leaving the surface, the valve is connected with an automatic restraint system the surface of the water inside the float at the level of its lower edge.
SUBSTANCE: device for underwater development of mineral deposits involves transporting reservoir which is hinged to rope by means of rod, gas generator, flexible gas cavity with limit pressure valve, and rope with ballast and float. Transporting reservoir is made in the form of bucket grab with flexible links and connected through gas generator equipped with startup sensor and load-carrying rope to flexible cavity.
EFFECT: excavation of mineral deposits from water area bottom and their lifting to surface irrespective of visibility conditions, with minimum power consumption for loading.
2 cl, 2 dwg
SUBSTANCE: proposed complex comprises base ship articulated with mining plant that comprises rolling gripping device mounted on skis, and transport device that joints mining plant with base ship. Rolling gripping device is made up of vaned drum running on horizontal axle articulated with the drive. Drum vanes are arranged with minimum clearance with respect to cylindrical casing inner surface. Casing perforated surface holes feature diametre smaller than minimum crosswise size of mined concretion. Forked vanes have deflections. Said casing communicates via intake chute of narrowing cross section with ground pump suction branch pipe. Said pump is arranged in skis crosswise girders on the side of casing, opposite the mining plant travel direction. Ground pump delivery branch pipe communicates with perforated pipeline arranged on the casing and secured thereto, that can be connected with flexible delivery pipeline. Said delivery pipeline is arranged coaxially with ground pump pressure branch pipe and directed along casing lengthwise axis of symmetry.
EFFECT: higher efficiency, simplified design, reduced costs.
3 cl, 5 dwg
SUBSTANCE: device for underwater development of rocks comprises frame, actuating element in the form of chain-and-bucket, discharge coal slurry pipeline, hopper. Device is additionally equipped with platform having walker, with the possibility of longitudinal and transverse motion, arranged in the form of skis installed on eccentric shafts. Chain-and-bucket is fixed on frame at side of device.
EFFECT: invention provides for autonomous operation in complicated mining and hydraulic-geological conditions and extraction of burs with minimum losses and disturbed condition of bottom deposits.
SUBSTANCE: invention refers to mining and can be implemented at complex industrial development of mineral resources of world ocean. The package consists of a transport floating sea-based station in kind of a semi-submersible floating platform with an underwater hydraulic support-container. On the platform there is made a through vertical shaft and above-surface decks. The following is arranged on the station: a hydraulically hoisted installation consisting of a hoisted pipeline of interconnected pipes installed in the shaft of the hydraulic support-container. In its upper part the pipeline communicates with an unloading hopper and with a receiving chamber also connected with a cavity of the hydraulic support-container by means of the pipeline. In its lower part the pipeline is coupled with a collector. The installation also consists of an evaporating system connected to a condenser via a steam line and to the unloading hopper via an evacuating pipeline. The evaporating system is equipped with a heating battery and a brine chamber coupled with the unloading hopper by means of the pipeline. Further, the installation consists of a thermo-siphon of a nuclear plant connected with the heating battery of the evaporating system through the steam line. The thermo-siphon is connected with its own condenser by means of the steam line and pressure line. The condenser of the thermo-siphon is installed under the condenser of the evaporating system and coupled with the latter by means of a down-take pipeline. Also the installation consists of bottom excavating devices tied with the collector of the hoisted pipeline by means of slurry lines. The novelty of the invention is like follows: additional through shafts are made in the hydraulic support container. The additional shafts have inter-shaft through slit apertures communicating the additional shafts and the shaft of the hoisted pipeline. Also there are the thermo-siphon of the nuclear plant and bottom excavating devices installed in these shafts. Under water the excavating devices automatically retract from the shafts and enter into them together with connected pipelines, steam lines, slurry lines and other communications freely arranged in the inter-shaft through slit apertures. Notably, to eliminate clogging, equipped with valves branches of blow-off main are connected to hinged facilities. Novelty of the procedure of package operation and transport condition consists in retracting equipment, including the hoisted pipeline, from the shafts and under water lowering, in hoisting it back and receiving it into shafts together with communications coupled and connected to equipment. Thus, submerged floating stations are attributed with controlled, correspondingly, negative or positive buoyancy.
EFFECT: raised efficiency and reliability of package operation due to reduced time and labour for lowering-hoisting operations and due to eliminating assembly and disassembly operations at excavating site.
7 cl, 10 dwg
SUBSTANCE: invention refers to mining and can be implemented for under water development of rock. The procedure for under water development of rock consists in excavation, in piling rock on an ice floe, and in transporting the ice floe to a place of stock piling on basin bottom. The basin is limited with a dam constructed up to a coastal strip and having an opening from the side of the ice floe transported with rock. Further, the ice floe is driven to negative floatability. When part of the basin is filled with ice floes with rock, the opening is blocked; rock is excavated upon melting and supplied to a concentrating installation erected on a shore. Further, ice floes with rock are stacked in an adjacent part of the basin divided with a common dam between the basins.
EFFECT: raised efficiency, reduced power consumption for transport operations, and reduced ecological damage to water medium caused with mining operations.
SUBSTANCE: invention relates to floating walking equipment. Proposed apparatus comprises housing, walking engine consisting of case and guide mechanisms supported by opposed rockers. Said housing accommodates two sets of guide mechanisms, one comprising four (1-3-5-7) said mechanisms and another four (2-4-6-8) said mechanisms interacting between themselves and with drive components to turn cross beams. Proposed method consists in displacing supports of opposite arms in rectilinear motion of guide mechanisms. Proposed method differs from known ways in that supports are lifted with advanced vertical turn of cross beams.
EFFECT: expanded performances.
4 cl, 11 dwg
SUBSTANCE: invention refers to mining operations from bottom of seas and oceans, which are mainly represented with horizontal and slightly inclined deposits of small thickness. Concretion development device includes frame, actuating device in the form of chain-and-bucket circuit, delivery slurry pipeline, displacement floats with support elements interacting with hydraulic cylinders, silo with inclined grizzly grate. In rear part of frame there located are displacement floats and support elements in the form of piles which have the possibility of vertical movement, and which also contribute to the frame being turned in horizontal plane. At that, front part of frame is provided with travelling equipment made in the form of wheel pair with individual drive of each one.
EFFECT: providing automatic operating device used under severe mining and hydrogeological conditions, and excavation of concretions with minimum disturbance of the state of bottom sediments.
2 cl, 3 dwg
SUBSTANCE: four independent blocks are preliminary constructed at plant or shipyard and are completed with corresponding to their design equipment by workers and engineers. Further the blocks are transported to a licensed deposit place of arctic shelf by means of ice-breakers and tugboats. In the coastal region erectors-constructors mount two auxiliary blocks, notably: a military-frontier base and medical-hotel centre, while the other two blocks are directed under their own power and are rigged in underwater conditions over the place of drilling. All blocks are connected between them with electric cables and pipelines. According to this method the underwater drilling rig is made in a pressure tight case. On both opposite boards the case is equipped with submarines with hatches and sluices for small underwater mechanisms. Also an auxiliary block is set next to the drilling block by means of anchors. The auxiliary block is similar to the drilling block by design, but inside it is equipped with facilities for preparation of drilling agent and for purifying bore mud; it is also equipped with facilities for cleaning of sewer-pipe drainages of all blocks. All blocks are connected between them with electric cables and pipelines. The underwater blocks are made in form of pressure tight cases rigidly mounted on fore body and stem of each of submarines; the said hatches and sluiced are arranged in them. The disclosed method of development facilitates improved treatment of viscous oil of shelf at mini-oil processing plant located at direct vicinity from the place of extraction, which considerably improves economic performances of deposit development.
EFFECT: upgraded safety and convenience of drilling operations in remote sparsely populated northern latitudes at development of shelf hydrocarbon deposits, considerable simplification of proper development process, reduced labour intensiveness of construction and mounting directly at place of development using existing facilities of ship-building plants for construction of such complexes at their justified updating.
3 cl, 8 dwg
SUBSTANCE: dredge consists of pontoon, working element, loading chute, dredging barrel, concentrating equipment, unloading chute, pebble stacker and eofel stacks. Also pebble stacker is installed on the pontoon and is designed to rotate in horizontal plane, while tail parts of eofel stacks are designed to rotate in horizontal plane.
EFFECT: increased efficiency of placer development with dredges and reduced losses of mineral in inter-pass massifs.
SUBSTANCE: group of inventions is related to underground production of minerals, and may be used in mining industry. Method for selective sampling and preliminary concentration of ferromanganese burrs includes displacement of getting device to the bottom, capturing burrs at the bottom, their transportation with the help of drum to zone of unloading and supply to hopper. Besides underpressure zone is created at drum shell, where ferromanganese burrs are captured, retained and transported to the area of underpressure zone ending, with further unloading to hopper under their gravity force. Device for method realisation comprises above-water floating facility, transporting element, bottom getting device in the form of drum. Getting device is arranged with longitudinal grooves at external surface of drum, having through holes at the ends of grooves. Shell with through cone-shaped holes evenly arranged along their whole surface and oriented with their base outwards is installed on drum. Holes are proportionate to captured concentrate. Drum is installed on side disks displaced relative to end to its centre, and is fixed on support table. Immobile header is rigidly connected to support table, and the header has shape of sector equal to 3/4 of circumference and is oriented symmetrically relative to horizontal axis in direction opposite to motion. Header is installed inside drum, between its end and side disk, and in zone of contact with surface of drum, there is an elastic low-friction coating on header. Support table is installed on vertical hydraulic cylinders mounted on skis. On skis there is also a hopper arranged in the form of truncated cone and electric motor in oil bath with pump connected to header by means of nozzle network.
EFFECT: elimination of direct dependence of efficiency on width of buckets, elimination of dead rock lift, production of nonmagnetic minerals, improvement environmental condition in zone of ferromanganese burrs deposits development.
2 cl, 6 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
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.