Subsea power module

FIELD: power industry.

SUBSTANCE: subsea power module comprises a strong housing in the form of a cylindrical shell with spherical ends, reinforced by stiffener rings, power equipment including energy generation equipment and energy distribution equipment and is attached to the subsea foundation base by the connecting device. The strong housing is divided into at least two strong housings, one of which houses energy generation equipment, and the other - energy distribution equipment. The connecting device is made in the form of a cassette, and the strong housings are vertically integrated into the mentioned cassette with the possibility of their separate removal therefrom. Each strong housing is provided with a lid located at one of its ends, connected to the housing by means of detachable waterproof connection, and energy generation and distribution equipment inside the mentioned strong housings is mounted in a volumetric frame built-in with a ring clearance in the strong housing and fixed from the inside on the mentioned end lid. Above the stiffener rings, on the outside, along the perimeter of the cylindrical shell of the strong housing, guides are placed parallel to the generatrices of the shell.

EFFECT: increased efficiency of the subsea power module.

3 cl, 4 dwg

 



 

Same patents:

FIELD: engines and pumps.

SUBSTANCE: this invention relates to protective device intended for prevention of fluid leaks into ambient water. Proposed device comprises dome-like fluid impermeable membrane. Besides, it incorporates individual-control floating devices attached to membrane for its positioning and stabilisation. To extract fluid, membrane is provide with discharge hose. The latter comprises also said individual-control floating means for positioning and stabilisation of discharge hose. Note here that said individual-control floating means are underwater apparatuses.

EFFECT: higher accuracy and ease of positioning.

7 cl, 2 dwg

FIELD: oil and gas industry.

SUBSTANCE: invention is referred to facilities intended for production of natural gas freed at gas-evolving bottom areas and gas evolved in result of induced flowing of gas hydrates. Offshore gas and gas hydrate production plant consists of double-layer polymer film (reinforced and heat insulating), heat generators at the bottom, heat generators in-built to ceramic plates and heat generator run at the rope along vertical trajectory in gas discharge pipe and magnetohydrodynamic generator. At natural flowing dome of gas collector made of the above film is risen above the bottom at capronic ropes for the purpose of natural filtration from hydrogen sulphide. Otherwise the bottom is covered with the above film for netter heating of gas hydrate at its withdrawal at induced flowing.

EFFECT: invention ensures simplified design for the equipment.

2 dwg

FIELD: oil and gas industry.

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

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

2 cl, 1 dwg

FIELD: oil and gas industry.

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

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

2 cl, 1 dwg

FIELD: oil and gas industry.

SUBSTANCE: group of inventions relates to HC underwater production, in particular to systems connecting the field facility and underwater wells. Oil and/or gas underwater production system contains central production facility, many underwater wells, fluid transportation network and separate power supply and data exchange network. The transportation network connects each well with the central production facility. The power supply and data exchange network is intended for DC and data supply, it is in-line connected with each underwater well.

EFFECT: invention ensures power supply to long distances, increases system flexibility.

16 cl, 5 dwg

FIELD: oil and gas industry.

SUBSTANCE: group of inventions relates to shelf drilling. A drilling ship includes the first drilling centre including a storage for the first marine risers, the second drilling centre for drilling of the second well from the same ship, which includes a storage for the second marine risers. The latter have a diameter that is smaller than that of the first marine risers. The ship includes two blowout preventers for the second drilling centre. A drilling method provides for creation of a drilling ship with two separating and different drilling centres, each of which is capable of well drilling; provision of marine risers for each drilling centre; diameter of marine risers for one of the drilling centres is smaller than that of marine risers for the second drilling centre; provision of two blowout preventers according to the smaller diameter of a marine riser of an auxiliary drilling centre.

EFFECT: providing drilling of a well from one ship from two different drilling centres, and namely under arctic conditions.

19 cl, 5 dwg

FIELD: oil and gas industry.

SUBSTANCE: production platform (1) is suggested with potential connection of branch connection coupled to a production manifold (10) in order to ensure connectivity to the production manifold (10) of at least two production connection strips from the respective subsea wellhead equipment. The production platform is made as a retrofitted module capable to be connected to a single inner tube (11) placed in the production manifold (10). The production platform comprises a frame (2), a pipeline (3), at least one connector (4) and rails (9). The frame (2) is made so that it may be placed on a support device (12). The support device (12) passes from the production manifold (10). The pipeline (3) forms a branching ended by a connector (4) and by at least two external tubes (6).

EFFECT: connection of two production strips to the manifold and reduction of boring rig time in the well.

9 cl, 4 dwg

FIELD: construction.

SUBSTANCE: invention relates to the devices for joining and connecting the first and second pipelines, containing the ends (E1, E2) of the first and second pipes at the sea bottom in the place of connection. Connecting device (10) comprises the first connecting part (1), holding the end (E1) of the first pipeline; the second submersible connecting part (2), holding the end (E2) of the second pipeline and connector (3), disposed between the connecting parts (1, 2) for the final connection of ends (E1; E2) of pipes inter se. The guiding device (5) cooperates with the guiding structure (4) during lowering of the second connecting part (2) to the first connecting part (1) and rotates the second connecting part (2) for preliminary alignment of the end (E2) of the second pipeline towards the end (E1) of the first pipeline, so that the first and second pipelines are brought to the alignment with each other at the sea bottom. Auxiliary inclined structure (6) with stop surfaces and guide means cooperates with the second connecting part (2) and facilitates the precise alignment of the ends (E1, E2) of pipes.

EFFECT: improvement of joining and connection.

14 cl, 13 dwg

FIELD: electricity.

SUBSTANCE: system and method of activation of underwater power consuming devices supplied with alternating current. System contains surface ship, underwater inverter and surface components installed on the surface ship. The inventor is made with possibility of underwater location and reception of DC power supplied from the surface ship. The inventor is made with possibility of DC power conversion to AC power for supply of the underwater consumer. The inventor is connected with cathode. Surface components are connected with the anode made with possibility of installation under water. The anode and cathode create reverse current channel via the sea water. The inventor is made with possibility to ensure three phase AC power for the underwater consumer at controlled frequencies based on control actions of the underwater control module.

EFFECT: invention ensures efficiency increasing of the supply process and control of the underwater consumers.

18 cl, 7 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

Pier // 2535726

FIELD: construction.

SUBSTANCE: pier is a linear gravitational hydraulic structure located on the coast of the Arctic seas, mainly in lower reaches of navigable rivers. The pier is designed in the form of an ice platform 1 of a rectangular section, placed on the sea bottom. The pier is equipped with wind-capture electric power plants 10 of a tower type located on the shore, liquid cooling and air cooling systems in the form of pass channels 2. The pier is additionally equipped with a thermo-fluid insulating screen 7, placed on the platform surface 1, and a solid floor covering 8 in the form of flat elements of a rectangular shape in plan, arranged at an angle of 45C to the longitudinal axis of the platform. The platform 1 is designed with slopes at side edges, located at the level of calved ice. The liquid cooling system is designed of interconnected atmospheric cold storage batteries 3, 4 of cooling pipelines 5, 6 and consumers of a coolant 9. The cooling pipelines are arranged along the slopes and under the thermo-fluid insulating screen 7.

EFFECT: increased strength, stability, reliability and durability of the ice structure.

6 dwg

FIELD: construction.

SUBSTANCE: underwater structure (US) operates at depth in the range from 100 to 120 m from sea level. At the same time the US comprises a support-bearing underwater complex and a drilling complex or a production complex. The support-bearing underwater complex includes a support-bearing plate and a wellhead complex. The support-bearing plate, in its turn, comprises a wellhead block, an energy block, a residential block, and also a life support block, internal and external circular corridors, radial transitions, sectioned ballast pontoons of circular shape and propelling agents. Retention of the underwater structure in the vertical position at the specified point for the whole period of stay is provided by control of filling of ballast pontoon sections, at the same time retention in the horizontal plane is done due to operation of the propelling agents. The inner surface of the body of the drilling complex and the production complex is congruent to the external surface of the wellhead complex, and the lower surface of the body of the drilling complex and the production complex is congruent to the upper surface of the support-bearing plate.

EFFECT: increased safety, reliability and quality of performed works.

13 cl, 5 dwg

FIELD: construction.

SUBSTANCE: method to erect underwater tunnels, including tunnelling of slopes and drifts, creation of a mine of arched shape, fixation of its walls and fixation of its walls and vault by monolithic reinforced concrete, backlining external hydraulic insulation from bitumen putty, a ramp and a water impermeable lock, water drainage by means of drainage trays, differing by the fact that in order to ensure efficiency of tunnelling works and higher reliability of tunnel hydraulic insulation, its length is divided into sections with open and underground methods of tunnelling. An inclined entry trench is built on an open area with minimum water level in a river by means of open works, in the end of the trench a protective horseshoe-shaped border is erected from reinforced concrete, walls are erected, the arched vault of the tunnel with rigging, on top of which they lay a hydraulic insulation jacket from Typar material and filled with removed soil, the tunnelling of the underwater section of the tunnel is carried out in a regimen of moderation by tunnelling combines in counter headways until they are joined at the design elevation, and water breakthrough in the tunnel is collected in a sump with subsequent pumping by pumps via wells to a surface interception ditch, connected with a water reservoir.

EFFECT: higher reliability of tunnel hydraulic insulation, reduced labour intensiveness and material intensity in construction.

1 tbl, 4 dwg

FIELD: construction.

SUBSTANCE: method to perform underwater technical works during installation of bulk items includes delivery of an item in the form of a box caisson to the place of installation, its flooding and assembly with the help of a cargo barge and a floating lifting facility. Delivery is carried out using a double-hulled watercraft made as capable of placement of the loaded barge in the space between pontoons that form the double hull and are connected to each other with metal frame structures with weight-lifting facilities for lifting and lowering of the box caisson, and also equipped with structures having extended elements, providing for retention of the box caisson as it is delivered to the place of installation. The barge with the box caisson of full availability is driven in the water area in the space between pontoons of the double-hulled watercraft, the box caisson is lifted with the help of its weight-lifting facilities, the unloaded barge is driven from the space between the pontoons into the water area, the box caisson is lowered for its installation onto extended elements, the specified elements are extended with the help of a drive, and the box caisson is rested onto them. The watercraft with the box caisson by self-motion or towing is delivered to the place of works production, the watercraft is moored, and the box caisson is flooded and installed by release from extended elements that retain it using weight-lifting facilities, which are installed on the watercraft.

EFFECT: optimised technology and reduced costs for production of underwater technical works during assembly of bulk items and structures.

7 cl, 5 dwg

FIELD: construction.

SUBSTANCE: underwater garage comprises a tight body, descents for entry and exit of transport from the garage, floors arranged within the body. The body is arranged in the form of a module representing a tight solid reinforced concrete box. At the end sections of the body there are ramps arranged, which are made curvilinear and rise above water. Entry and exit are carried out along a piled bridge that connects the quay and the curvilinear ramps. The method to construct the underwater garage includes construction of a coastal pit separated from the river with a soil dam. The pit is arranged by providing vertical walls reinforced with the help of a metal rabbet. Then assembly is carried out in the module pit, and it is hydraulically insulated. The pit is filled with water, the dam is dismantled, and the module is transported to the place of installation. The module is installed into a previously prepared underwater pit by means of partial filling of the module with water, the module is surcharged in order to prevent floating and, and works are performed to reinforce the bottom with subsequent water pumping. Descents are arranged in the form of the piled bridge that connects the quay and the ramps of the underwater garage.

EFFECT: improved conditions for operation due to considerable reduction of space for entering a garage using curvilinear ramps.

2 cl, 5 dwg

The invention relates to the field of construction and mining and can be used in the construction of sub-seabed tunnel large extent

The invention relates to the field of construction and can be used in the construction of new pipelines or repair of existing in remote areas, mainly in swamps and flooded areas

The invention relates to a method of production of oil and gas activities in deepwater areas with severe weather and climate conditions, including the Arctic shelf, and marine structures hydraulic structures for this

The invention relates to a method of construction of underwater structures for preservation of submerged hazardous objects resulting from human activity, for example, due to accidents, flooding

The invention relates to the field of construction, allows you to build the foundations for deep water and is that the bearing shell is made of sections manufactured in the form of cylindrical rings with holes symmetrically positioned around the circumference of, and coaxially lowered to the ground by stringing on rails suspended from the conductor, located above the water surface, then through the cavity are developing well, which then together with the cavities of the shell are filled with structural material

FIELD: construction.

SUBSTANCE: underwater garage comprises a tight body, descents for entry and exit of transport from the garage, floors arranged within the body. The body is arranged in the form of a module representing a tight solid reinforced concrete box. At the end sections of the body there are ramps arranged, which are made curvilinear and rise above water. Entry and exit are carried out along a piled bridge that connects the quay and the curvilinear ramps. The method to construct the underwater garage includes construction of a coastal pit separated from the river with a soil dam. The pit is arranged by providing vertical walls reinforced with the help of a metal rabbet. Then assembly is carried out in the module pit, and it is hydraulically insulated. The pit is filled with water, the dam is dismantled, and the module is transported to the place of installation. The module is installed into a previously prepared underwater pit by means of partial filling of the module with water, the module is surcharged in order to prevent floating and, and works are performed to reinforce the bottom with subsequent water pumping. Descents are arranged in the form of the piled bridge that connects the quay and the ramps of the underwater garage.

EFFECT: improved conditions for operation due to considerable reduction of space for entering a garage using curvilinear ramps.

2 cl, 5 dwg

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