Offshore natural gas extraction plant |
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IPC classes for russian patent Offshore natural gas extraction plant (RU 2393338):
 Offshore natural gas extraction method / 2393337
Method involves collection of gas from gas flows above gas evolving sections of the bottom by means of dome gas collector installed on the bottom surface, transmission of gas from gas collector to accumulating capacity equipped with gas unloading devices, compaction of gas volume, supply of signal to the collecting ship at the specified filling of the accumulating capacity and shipment of its content to the collecting ship. As accumulating capacity, there used is dome capacity having positive buoyancy, open from below, and from above it is connected to the pipeline having buoyancy. At that, accumulating capacity is located in water column above the bottom so that its top can be located at the depth where water pressure exceeds the pressure of dissociation of natural gas hydrate at the temperature corresponding to the annual maximum of water temperature. Location of at least two gas flows is pre-determined; dome gas collector each of which is interconnected via pipelines to the cavity of accumulating capacity is arranged above each of them; besides at least outlet pipeline and pipelines of gas collectors are equipped with electric heating devices.
 Technological complex for development of gaseous-hydrate deposits in open sea / 2386015
Technological complex includes cone-shaped or dome-shaped gas collector with mouth in top part and collector with storing system of gas. Collector and system of gas storage are implemented separately. Collector is implemented in the form of open from the bottom tank, equipped inside by plates-catches and hollow axis, through which it is passed directive buoy line with installed on it top and bottom, banking movement of collector and subsurface flotation ability, outfitted by jointing chamber, connected by flexible pipeline with system of gas storage. Bottom part of floatation is outfitted by chopper, catches and allows configuration, similar to top part of collector, bottom part of which is centering cone for seating on head of gas-collector, implemented as rigid and equipped by thrust elements, and top contains spring-load lever valves, allowing ability of its opening at contact with top delimiter.
 Gas holder / 2383717
Invention refers to facilities for intake and transporting gas and is used for extraction of natural gas in open sea, particularly for extraction of gas freely coming out from out gassing bottom surfaces. The gas holder consists of a case designed to be immersed into water thickness and to be lifted out of it, of an aperture for gas intake and of a device for gas discharge. The gas holder has buoyancy close to zero, while its case is designed to provide towing of the gas holder with a tugboat when it is either on sea surface or in immersed position. The case facilitates maintaining thermo-baric conditions in the cavity at level, which eliminates dissociation of natural gas hydrate; for this purpose it is equipped with facilities of thermo-insulation and/or cooling the cavity, and/or is made with consideration of internal pressure not less, than pressure corresponding to pressure of dissociation of natural gas hydrate at temperature maintained in the cavity of the gas holder. The gas holder is equipped with facilities for intake of gas from the installation for gas accumulation; its cavity can communicate with water area. A bottom part of the gas holder is equipped with an intake aperture of water receiving pipeline.
 Natural gas off-shore development / 2382875
Invention related to equipment for natural gas off-shore exploration, particularly the gas, which is freely released at gas evolving bottom areas. The complex includes a gas-collecting unit, executed with ability of installing under water and gas catching for its following transmission to a gas holder, which executed with ability of positioning in water depth and lifting to the surface and to service vessel. The gas holder has buoyancy tends to zero. It's case executed with ability of keeping thermal baric condition at level, which excludes natural gas hydrate dissociation, for that it is equipped with heat insulation arrangements and/or cavity cooling arrangements and/or executed in a way that internal pressure is not less than the natural gas hydrate dissociation pressure at temperature which keeps in the gas holder cavity. The gas holder equipped with a gas receiving device from gas collecting unit, which executed with ability of its cavity to be connected to water basin, also with a gas discharge device. The gas holder unit contains a domed accumulating tank, opened from the bottom, located over the domed gas collectors and connected to them via pipeline, also equipped from the top with a vertical discharge pipeline with remote controlled valves. The discharge pipeline, gas collectors pipelines and the accumulating tank cavity equipped with electrical heating device. The discharge pipeline end executed with ability of dismountable connection to the gas holder cavity and located at depth, where pressure in gas holder cavity, at its intercommunication to the water basin, is not less than the natural gas hydrate dissociation pressure, at temperature conforms to annual water temperature maximum in the accumulation tank dislocation zone. The complex equiped with gas holder submersion and its connection to the accumulating tank discharge pipeline tools. A tag boat used as the service vessel, executed with gas holder tagging ability, equiped with impingement cooling system and electrical power generator for the gas holder power supply.
 Sub-sea hydrocarbons production complex / 2381349
Invention related to open sea hydrocarbons production method, including oil and gas-hydrates. Complex contains a sea platform, a production well, water injection equipment. The equipment includes a gas-turbine motor with internal and external shafts, a heat exchanger for water heating with gas-turbine motor exhaust gases, Sterling motor, installed with ability to run with help of gas-turbine motor internal shaft, electrical generator, electrically connected with a hydrocarbon pump drive. At that the Sterling motor connected with electrical generator. Fuel pump with a drive, a flow regulator and shut-off valve hooked to the gas-turbine motor combustion chamber.
 Sub-sea oil production method / 2381348
Invention related to open sea natural gas production method. Method includes gas and gas fountains collection over the bottom gas extracting areas, using dome-shaped gas collector, installed on the bottom, gas transfer into a gasholder, located under the water, gas compression in the gasholder and the gasholder lifting to the surface. Gas compression executed by transferring gas into gas-hydrate phase. Locate the gasholder during gas receiving and compression under water, above bottom, at depth, where water pressure is greater than natural gas hydrate dissociation pressure, corresponding to hydraulic formation thermo baric conditions, taking into account water temperature and connect to water basin during mentioned period. After the gasholder filling in, insulate its cavity and lift it to the surface, with the following transportation to the refinery place, keeping gasholder's thermo baric conditions at level, excluding natural gas hydrate dissociation. After the gasholder delivery to the treatment area, create thermo baric conditions in its cavity, providing gas hydrate dissociation, which selected for the following treatment, use left in the gasholder water according to its purpose.
 Marine hydrocarbon field complex / 2379484
Complex contains a sea platform, a production well and a water injection device, containing a pump, which outlet connected to the injection well. According to the invention a heat exchanger connected after the pump by the water line, installed in a gas-turbine drive exhaust device, containing and a gas-turbine motor and Sterling motor. The Sterling motor shaft connected an electro generator, which electrically to a hydrocarbons pump drive shafts. In front of the Sterling motor installed an additional combustion chamber. The gas-turbine motor contains an air intake, a compressor, the combustion chamber and a turbine. The motor fuel system connected to combustion chambers, it contains a fuel pump with a drive, a flow regulator and shut off valves.
 Marine hydrocarbon field complex / 2379483
Complex contains a sea platform, a production well and a water injection device, containing a pump with a drive, which outlet connected to the injection well. According to the invention a heat exchanger connected after the pump by the water line, installed in a gas-turbine drive exhaust device, then a double shaft gas-turbine motor with external and internal shafts, a combustion chamber and a Sterling motor connected to the external shaft. The external and the internal shafts connected to a birotating electro generator, connected electrically with the hydrocarbons pump drive. In front of the Sterling motor installed an additional combustion chamber, and in front of the heat exchanger inside of the exhaust device - the second combustion chamber.
 Marine hydrocarbon field complex / 2379482
Complex contains a sea platform, a production well and a water injection device, containing a pump, which outlet connected to the injection well and a electro-generator. According to the invention a heat exchanger connected after the pump by the water line, installed in a gas-turbine drive exhaust device, containing a double shaft gas-turbine motor with an external and an internal shafts, a compressor, a combustion chamber, a cooling system and a turbine and a Sterling motor. The Sterling motor connected to the double shaft gas-turbine motor with one of the shafts. The same shaft connected to the pump, and another one - with electro-generator, connected electrically with the hydrocarbons pump drive. In front of the Sterling motor installed an additional combustion chamber. The heat exchanger connected between the compressor outlet and the turbine cooling system collector.
 Marine hydrocarbon field complex / 2379481
Complex contains a sea platform, a production well and a water injection device, containing a pump, which outlet connected to the injection well and a electro-generator. According to the invention a regenerative heat exchanger connected after the pump by the water line, installed in a gas-turbine drive exhaust device, and a heat exchanger cooler. A gas-turbine drive contains double shaft gas-turbine motor, with an external and an internal shafts, a compressor, a combustion chamber and a turbine with cooling system and a Sterling motor. The Sterling motor connected to the double shaft gas-turbine motor with one of the shafts. The same shaft connected to the pump, and another one - with electro-generator, connected electrically with the hydrocarbons pump drive. In front of the Sterling motor installed an additional combustion chamber. The heat exchanger-cooler by the air line connected between the compressor outlet and the turbine cooling system collector.
 Flexible ascendant pipeline protection device / 2328403
Invention relates to the flexible ascendant pipelines designed for working in waters encumbered with ice. The ascendant pipeline is equipped with the protection device against the shock caused by waves and drifting ice. The protection device covers at least the upper part of the pipeline and can be removed to the non-operation position at the sea bottom or on board. The protection device is formed by the multitude of separate hollow elements of the blunt-nosed cone shape, which are hanged to one another with chains or wire ropes. When the pipeline is in the removed position, the separate hollow elements can be laid one atop another. The protection device must protect at least the upper part of the ascendant pipeline going from the sea bottom to the floating vessel.
 Protection device for deep flexible uprise pipeline / 2328589
Flexible pipeline or hydrocarbons transportation system between the installation, located on the seabed and the vessel on the sea surface. Uprise pipeline is equipped with a device for its protection against impact which closes at least the top of the uprise pipeline. The device to protect the uprise pipeline is formed by flexible element and a multitude of individual hollow components, each of which is suspended on chains or ropes. This device is equipped with tensile or tightening devices, which is preferably attached to the lower end of the device to protect the uprise pipeline.
 System and vessel for technical servicing of offshore deposits / 2330154
Invention relates to development of offshore deposits of hydrocarbons and is intended for technical servicing of deposits with many places of dislocation of subsea wells (SW), each of them having one or several SW. The system includes a floating vessel, which can be transferred from one place of dislocation of SW to another place of dislocation of SW and two separate systems: one system to perform operations in the place of dislocation of SW, such as power supply, data transmitting and a system of underground servicing intended for underground servicing of a certain SW, such as repair servicing and operational servicing. The operational system can provide control of SW and other subsea equipment either in the first or in the second place of dislocation of SW irrespective of the position of the vessel.
 Power supply system (versions) / 2330939
Invention relates to electric engineering and may be used for well operation with pumping units to supply power to remote electric arrangement. Power supply system includes AC-DC voltage transmitter connected with AC voltage supply to transmit AC voltage into high DC voltage in the first point. AC-DC voltage transmitter includes great number of AC-DC transmitter components which are parallel connected with AC voltage supply at their inputs, and serially connected with electrical conductor at their outputs. Electrical conductor is routed to a great number of voltage transmitters in remote point and their inputs are serially connected with electric conductor, while their outputs produce proper voltage for electric arrangement.
 Method for vessel mooring to submersible turret buoy and method for underwater upward pipeline protection system installation / 2344963
When a vessel is moored to the submersible turret buoy, the vessel is brought above the submersible upward pipeline fitted with the turret buoy. The upward pipeline with the turret buoy is pulled upwards up to engagement with the appropriate on-board equipment. Then a protection device covering the upward pipeline and protecting at least its upper part is pulled out. The upward pipeline and its protection device can be completely retracted to the inoperative underwater position using the protective structure.
 Complex for development of sub-sea deposits of minerals / 2349489
Invention refers to engineering equipment for development from wells of such natural resources of World Ocean as oil and gas as well as other minerals form gravel sub-sea deposits. The complex for development of sub-sea deposits of minerals consists of an assembly frame either on a mother ship in the open sea, on an island or on shore; the frame is designed for fabrication, test and launching pressure tight chambers with equipment installed therein. Pressure tight casings with pipelines and casings with power and control cables are connected with chambers. Also the head part of the complex is transferred in submerged position from the site of assembly frame to the specified coordinates of the sea bottom by means of alternate switching on maneuvering devices of pontoon blocks; the length of transport system of the complex is being gradually increased by means of addition of the next sections inside the assembly frame. To maintain the course of complex traveling not less, than two submarines are used which are continuously coupled with the head part of the complex.
 Vertical installation of elongated technological assembly / 2353755
Group of inventions refers to oil and gas industry, particularly to installation of technological assemblies on the sea bottom. The method consists in lowering the technological assembly, in introducing its first end into a receiving device, when a lower end is temporary formed out of the said first end, in maintaining the first end in the receiving device, and in lowering the second end of the technological assembly bringing the end into a horizontal position from a vertical on the sea bottom or on a module foundation. The first end of the assembly is left supported with the receiving device; a rotation axis is formed for the first end. The group of inventions also includes the method of retrieval of the assembly from the sea bottom and the receiving device for assembly handling and its implementation.
 Chain-line pipe-lay from floating system of oil production / 2362081
Sections of pipes (52, 54) are connected successively and are supported vertically relative to floating vessel (12) to assemble section of column (68B-68D); this section is immersed into sea so, that nearest end (56) of section rests on floating vessel. Towboat (30) stretches out the section of the column along a doubled chain line by means of hauling in towing cable (34) connected with further end (65) of the column. When further end of the column is situated near one of the borehole of underwater wells of the oil deposit, this end is transported for connecting it to the borehole using a transport vessel with remote control. During assembly tension in the pipe column is maintained at a required level by facilitating location of the section of the nearest end of the column, which is below floating vessel (12), so, that the column is stretched at angle (70) to vertical, which continuously stays within the preliminary set interval from 3° to 12°.
 Marine hydrocarbon field complex / 2379480
Complex contains a sea platform, a production well and a water injection device, containing a pump, which outlet connected to the injection well and a electro-generator. According to the invention a heat exchanger connected after the pump by the water line, installed in a gas-turbine drive exhaust device, then a double shaft gas-turbine motor with an external and an internal shafts, and a Sterling motor connected to the double shaft gas-turbine motor with one of the shafts. The same shaft connected to the pump, and another one - with electro-generator, connected electrically with the hydrocarbons pump drive. In front of the Sterling motor installed an additional combustion chamber, and in front of the heat exchanger inside of the exhaust device - the second combustion chamber. The double shaft gas-turbine motor contains an air intake, a compressor, the combustion chamber and a turbine. The motor fuel system connected to combustion chambers, it contains a fuel pump with a drive, a flow regulator and shut off valves.
Marine hydrocarbon field complex / 2379481
Complex contains a sea platform, a production well and a water injection device, containing a pump, which outlet connected to the injection well and a electro-generator. According to the invention a regenerative heat exchanger connected after the pump by the water line, installed in a gas-turbine drive exhaust device, and a heat exchanger cooler. A gas-turbine drive contains double shaft gas-turbine motor, with an external and an internal shafts, a compressor, a combustion chamber and a turbine with cooling system and a Sterling motor. The Sterling motor connected to the double shaft gas-turbine motor with one of the shafts. The same shaft connected to the pump, and another one - with electro-generator, connected electrically with the hydrocarbons pump drive. In front of the Sterling motor installed an additional combustion chamber. The heat exchanger-cooler by the air line connected between the compressor outlet and the turbine cooling system collector.
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FIELD: oil and gas industry. SUBSTANCE: plant includes dome gas collector provided with possibility of being installed on the bottom surface, the cavity of which is interconnected with cavity of accumulating capacity equipped with outlet pipeline the end of which is fixed on buoyancy equipped with device of radio communication with the collecting ship equipped with attachment device with outlet hole of outlet pipeline. Plant includes at least two dome gas collectors. Accumulating capacity is open from below, it has dome shape and positive buoyancy. Ends of pipelines of gas collectors are fixed in the space under the accumulating capacity, thus excluding the possibility of carrying-over of the gas leaving them from the accumulating capacity cavity. Pipelines are rising throughout their length; at that, at least outlet pipeline and pipelines of gas collectors are equipped with electric heating devices. Accumulating capacity is located above the bottom so that its top can be located at the depth where water pressure exceeds the pressure of dissociation of natural gas hydrate at the temperature corresponding to the annual maximum of water temperature. EFFECT: simplifying the design of the equipment providing the gas collection, simplifying the arrangement of the gas extraction operation of the collecting ship. 6 cl, 1 dwg
The invention relates to a device for the extraction of natural gas in the open sea, namely gas, free-facing bottom gas-emitting sections. A device for the extraction of natural gas in the open sea, including a dome-shaped gadobenic installed on the surface of the gas-emitting section of the bottom, and a gas pipeline on the sea surface (SU N1498908, CL EV 43/00,1989). However, in the case of gas transportation from great depths using the pipeline can be difficult to work smoothly. Also known installation for natural gas production in the open sea, including a dome-shaped gadobenic made with the possibility of installation on the bottom surface, the cavity of which communicates with the cavity of a storage tank equipped with videcnik pipeline, the end of which is fixed to the buoyancy provided by means of radio communication with the vessel-collector, provided with means for connection with the outlet wydanego pipeline (see EN 2078199, EV 43/01, 1994). The disadvantage of this solution is the lack of economic efficiency in the development of gas hydrate deposits as sources of gas fountains, particularly in the distribution of gas fountains in limited space areas, under conditions of variable flow rate of gas. Adopted by the Hema compacting the collected gas (liquefaction) in a storage tank (gas tank) energy-intensive and structurally quite complex, because it is unclear how to implement the petitioners ' allegation that "before transporting gas sirivat by boosting, for example, a compressor, in addition, the tank becomes a rather complicated construction, because he "has to work" with a large differential external pressure (at the initial stage of filling it must withstand significant external pressure, and after surfacing must resist the same value of the internal pressure (the efficiency of liquefaction at best 40-50% of the original volume of gas). However, it is unclear how to change gas tanks, useful volume which, according to the authors, in the order of 10 m3. Evaluating the efficiency of the production process, you can mark it ineffective at great depths (greater than 600-800 m). Task to be solved by the claimed invention is directed, is expressed in enabling efficient mining of gas hydrate deposits as sources of gas fountains, especially in the distribution of gas fountains are limited on space stations. The technical result obtained by solving the problem is to simplify the design of equipment for the collection of gas, in addition, simplifies the organization of work for the ship-collector gas sales. To solve the put is authorized tasks set for natural gas production in the open sea, includes a dome-shaped gadobenic made with the possibility of installation on the bottom surface, the cavity of which communicates with the cavity of a storage tank equipped with videcnik pipeline, the end of which is fixed to the buoyancy provided by means of radio communication with the vessel-collector, provided with means for connection with the outlet wydanego pipeline, characterized in that it contains at least two dome-shaped gas collector, while the storage tank is open at the bottom, it was given a domed shape and a positive buoyancy, and the ends of the pipes of the gas is fixed in the space below the storage capacity with the exception of the possibility of carrying out flowing of gas from the cavity of a storage tank, in addition, pipelines are made of the rebels along their entire length, with at least vydatnou piping and pipelines for gas supplied by means of electric heating, in addition, a storage tank located above the bottom so that its top was at a depth where the water pressure exceeds the pressure dissociation of hydrate of natural gas at the temperature corresponding to the annual maximum water temperature. In addition, the buoyancy wydanego pipeline is equipped with a winch, the free end of which is fixed on toward her surface is a storage tank. This means the electric heater is made of flexible conductive material with the possibility of the elastic change of their length, for which at least some of their plots given type spirals. In addition, the bottom section tools electric wydanego pipeline placed in the cavity of a storage tank. When this means of electrical heating of pipelines for gas passed through named pipes, supply lines out of gas for buoyancy, such as buoyancy wydanego pipe, and the ends of the supply lines are equipped with hermetic electrical connectors. In addition, the end wydanego pipeline equipped with shutoff valves. Comparative analysis of the characteristics of the claimed solution with the characteristics of the prototype and analogues demonstrates compliance of the claimed solution to the criterion "novelty". The characteristics of the characterizing portion of the claims, solves the following functional tasks: The sign "...contains at least two dome-shaped gas collector..." minimizes the amount of work to deploy the storage capacity per gadobenic. Signs "...a storage tank is open at the bottom, it was given a domed shape and a positive buoyancy, and the ends of the pipes for gas locked in question is ransta under storage capacity with the exception of the possibility of carrying out flowing of gas from the cavity of a storage tank..." allow positioning in the water column of a storage tank without it charms" on a floating structure located on the surface area, thus ensuring the independence of mining from the ice. The sign "...pipelines made itself throughout their length..." eliminates the formation of gas hydrate plugs in their cavity. Signs "...at least vydatnou piping and pipelines for gas supplied by means of electric heating..." provide the possibility of "on - off" process supply of free gas from the storage tanks and provide the possibility of "opening" wydanego pipeline and pipeline gas from "caps" of gas hydrates. The sign "...a storage tank located above the bottom so that its top was at a depth where the water pressure exceeds the pressure dissociation of hydrate of natural gas at the temperature corresponding to the annual maximum water temperature..." provides "automatic" translation in a hydrated form of gas trapped in a storage tank, and its accumulation in a compact form. The sign "...buoyancy wydanego pipeline is equipped with a winch, the free end of which is fixed on facing to a surface of a storage tank...provides adjustable immersion depth below the surface of excitement Signs "...the ele is tropologia made of flexible conductive material with the possibility of the elastic change of their length, for what, at least some of their plots given type spirals..." ensure the safety of funds of electric heating by changing the position of the pipeline relative to the storage tanks and/or gas, and also when changing the length of the pipeline. The sign "...the bottom section tools electric wydanego pipeline placed in the cavity of a storage tank..." increases the speed of the gas issuing from the storage tanks. Signs "...the means of electrical heating of pipelines for gas passed through named pipes, supply lines out of gas for buoyancy, such as buoyancy wydanego pipe, and the ends of the supply lines are equipped with hermetic electrical connectors..." ensure the independence of the work of converting into gas hydrates in the storage tanks from similar work in the collectors. In addition, the placement of the electrical connector means of electric heating on one buoyancy provides the possibility of simultaneous control teplovodopribor from a single point. The sign "...the end wydanego pipeline equipped with shutoff valves..." eliminates leakage of gas volumes located in vitachem the pipeline upstream of the zone gidratoobrazovaniya, at the end of the shipping process gas. The drawing shows the installation of DL the natural gas production in the open sea. Position in the drawing indicate: a dome gadobenic 1, a storage tank 2, the ship-Builder 3, vydatnou pipeline 4, provided with a buoyancy 5, the pipes 6, the means of the electric heater 7, the ends 8 of the pipes 6 with plavuchesti 9, the lower portion 10 means of electric heating 7 wydanego pipeline 4, hermetic electrical connectors 11, valves 12, anchor blocks 13, the winch 14. Dome-shaped gadobenic 1 and storage tank 2 is structurally similar to and different from the size (volume of the cavities of the first order of hundreds of m3, the second - order of 5-10 thousand m3. They are made in the form of soft shells of durable synthetic materials enclosed in a wire mesh cage of synthetic ropes to bottom points which are attached to the anchor blocks 13. The gas collector 1 can also be made in the form of a rigid frame (not shown)mounted in place, or "self" (e.g., using alloys with shape memory), have a soft shell and anchor blocks 13. Areas of the upper dome-shaped gas collector 1 and storage tank 2 is supplied by pipelines (first - piping 6, the second videcnik pipeline 4) plavuchesti respectively 9 and 5 at the ends. The buoyancy of 5 wydanego pipe 4 is made with the possibility of its immersion in the water qu (for example, below depth surface agitation). For this example, mount the winch 14, the end of the rope which is rigidly fixed on the upper surface of a storage tank 2, and provide remote (for example, radio-controlled) control mechanism, providing ascent buoyancy 5 on a signal from the vessel-collector 3 and a battery that supplies power to the winch 14. For the convenience of searching and loading the collected gas to the vessel-collector 3 apparatus (not shown) buoyancy 5 is arranged to work in the mode of the receiver and transmitter. In addition, the buoyancy of 5 posted hermetic electrical connectors 11, valves 12 wydanego pipeline 4. In addition, the buoyancy of 5 posted instrumentation for monitoring the physical state of the gas in the system nodes (not shown). The claimed device natural gas production in the open sea is assembled and operates as follows. As the source gas used his bottom gas fountains above gas hydrate fields that lies beneath the covering thickness of the bottom. These gas fountains identify a known manner, on the basis of seismoacoustic profiling, and/or echocardiology, and/or record locator side view and/or gas-geochemical studies. Gave the e is lowered to the bottom of the dome-shaped gas collector 1, covering their "sources" gas fountains, immersed in the waters of the storage tank 2 (moving its width, at the relevant explode on the area of the bottom of the anchor block 13, at least three, and height due Archimedean forces occurring during the immersion of the vessel in the water, the upward and "work" gravity adjacent to the anchor block 13, a force directed downwards). Storage tank 2 is placed in the water column above the bottom so that its top is located at a depth where the water pressure exceeds the pressure at which the dissociation of hydrate of natural gas at the temperature of the surrounding water, the corresponding annual maximum temperatures. Further, the pipelines 6 dome-shaped gas collector 1 report with the cavity of a storage tank 2 (buoyancy 9, secured to the ends of the pipes 6 of the gas collector 1, positioned directly beneath the storage tank 2 and is fixed in this position the respective anchor blocks 13 or start from the bottom directly into the cavity of a storage tank 2 by the value of preventing their displacement of the bottom currents. The important point is that the receiving apertures of the pipes 6 of the gas collector 1 was located below the outlet and the pipe 6 was "go into all the sections of e is about length. Means of electric heating 7 pre-fitted in the cavities wydanego pipe 4 and the piping 6, and the lower portion 10 means of electric heating 7 wydanego pipe 4 inserted in the cavity, while their supply lines displayed on the buoyancy of 5 wydanego pipe 4 and is provided with a hermetic electrical connectors 11. In the initial position vydatnou pipeline 4 is blocked by the shut-off valve 12, the buoyancy of 5 pritoplennye at a depth of excluding the influence of surface waves, ice and other factors. Next, collect the gas by using a dome-shaped gas collector 1, trapping gas fountains. Trapped gas floats to the top of the hollow dome-shaped gas collector 1 and then POPs up a pipeline 6 into the cavity of a storage tank 2, gathering in its upper part. Staying in its motion, the gas bubbles begin to perceive the water pressure (which at this depth exceeds the pressure at which the dissociation of hydrate of natural gas, and taking into account the temperature of the water corresponds to thermobaric conditions of hydrate formation), through which the gas passes in a hydrated form. Thus, in the cavity of a storage tank 2 begins to accumulate hydrate of natural gas (in terms of the sea of Okhotsk, is right to say - metalogical because methane SOS is to place up to 98-99% of the volume of gas). The accumulation of gas hydrate instead of the accumulation of the gas helps reduce Archimedean forces acting on a storage tank 2, as the density of methane hydrates close to the density of ice 0.874 methane at a temperature of 0°C (increasing from 0,894-0,897 g/cm3at 0°C and to 2.55 MPa to 0,914-0,956 g/cm3at 37°C. and 147 MPa). According to the calculation of the empirical formula of the density of methane hydrate is 0,905 g/cm3at 0°C. Precipitation of up to 7%). The conductivity of gas hydrates in 5-15 times higher than that of ice. Hydrocodone deposits differ from the aquifer, in addition to lower density, significantly lower conductivity and lower thermal conductivity, but the greater speed of propagation of elastic waves. It was established experimentally that after hydrate formation in initially water-saturated Sands, the speed of longitudinal waves was increased from 1.85 to 2.7 km/s; in cemented sandstones speed was increased from 3.0 to 3.5 km/s Speed of longitudinal waves in the sample of pure hydrate structure bottom about 3.1 km/s This allows you to easily control the accumulation of gas hydrates in a storage tank 2, by monitoring the velocity of propagation of elastic waves in the cavity. At a given filling of a storage tank 2 instrumentation mounted on the buoyancy 5 gives the command on its ascent (option, when this team takes the corresponding equipment of the ship-collector 3). After that, radio transmitting apparatus, mounted on the buoyancy 5, transmits a signal, which is received by the vessel-collector 3, which allows you to quickly reach the buoyancy 5. Further, the buoyancy of 5 or lift on Board the vessel (if buoyancy is small), or the operator descends from the ship to the buoyancy of 5. Next vydatnou pipe 4 is connected to the receive pipeline vessel (not shown), and hermetic electrical connectors 11 means of electric heating 7 wydanego pipe 4 and, if necessary, piping 6 is connected through the ship's power supply line to the ship's power source and start warming up the pipes by opening valves 12 wydanego pipeline 4. Due to heating of the gas hydrates become gas and go to the ship-Builder 3. The process continues until the complete liberation of a storage tank 2 from hydrate or to fill the tanks of the vessel-collector 3. Directly on the ship-collector 3 gas compact (turning into hydrate or liquefaction). Upon completion of the process of shipment disable hermetic electrical connectors 11 means of electric heating 7 from the ship's power source, block valves 12 wydanego pipeline 4 and give the command to dive buoyancy 5. Yes is it all repeats. When working in the ice-ship collector must have the appropriate ice class, which ensures its safe operation, or must be accompanied by an icebreaker. For ascent buoyancy 7, you must first generate wormwood appropriate dimensions. In the rest of the work in ice conditions does not differ from the one described. 1. Installation for natural gas production in the open sea, including a dome-shaped gadobenic made with the possibility of installation on the bottom surface, the cavity of which communicates with the cavity of a storage tank equipped with videcnik pipeline, the end of which is fixed to the buoyancy provided by means of radio communication with the vessel-collector, provided with means for connection with the outlet wydanego pipeline, characterized in that it contains at least two dome-shaped gas collector, while the storage tank is open at the bottom, it was given a domed shape and a positive buoyancy, and the ends of the pipes of the gas is fixed in the space below the storage capacity with the exception of the possibility of carrying out flowing out of the gas from the cavity of a storage tank, in addition, pipelines are made of the rebels along their entire length, with at least vydatnou piping and pipelines for gas SN is beeny means of electric heating, in addition, a storage tank located above the bottom so that its top was at a depth where the water pressure exceeds the pressure dissociation of hydrate of natural gas at the temperature corresponding to the annual maximum water temperature. 2. Installation according to claim 1, characterized in that the buoyancy wydanego pipeline is equipped with a winch, the free end of which is fixed on facing to a surface of a storage tank. 3. Installation according to claim 1, characterized in that the means of the electric heater is made of flexible conductive material with the possibility of the elastic change of their length, for which at least some of their plots given type spirals. 4. Installation according to claim 1, characterized in that the bottom section tools electric wydanego pipeline placed in the cavity of a storage tank. 5. Installation according to claim 1, characterized in that the means of electrical heating of pipelines for gas passed through named pipes, supply lines out of gas for buoyancy, such as buoyancy wydanego pipe, and the ends of the supply lines are equipped with hermetic electrical connectors. 6. Installation according to claim 1, characterized in that the end wydanego pipeline equipped with shutoff valves.
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