Vessel for production of hydrocarbons from offshore fields
(57) Abstract:The invention relates to the field of shipbuilding, in particular to the courts for the production of hydrocarbons from offshore fields. Vessel for production of hydrocarbons includes a housing with a receiving cavity located in the nose from the fuselage mid-section, which has a turret with a rotary expansion devices, and also placed in the nose of the residential units, technological and energy complexes. Technological complex is made in the form of a gathering system gas condensate production wells with a block of input lines, interacting with the complex for the preparation of the condensate and gas for transportation, which includes equipment for the separation of gas and condensate plant for condensate stabilization and installation of gas compression. The latter is in the form of a superstructure mounted on the upper deck. Block input lines, equipment for the separation of gas and condensate and condensate stabilization placed in the hold of the vessel in the area of the mentioned add-ons. The upper deck of the housing is fitted with a protective fireproof bulkhead separating technological complex from the rest of the body. Is achieved by providing the possibility to use the HP The invention relates to the field of shipbuilding and, in particular, to the courts for the production of hydrocarbons from offshore fields.Known to the court for production of hydrocarbons from offshore fields, containing the body of the receiving cavity in which is placed a sentry gun with a swivel connecting device; and having the residential unit, technology and energy systems (see, for example, a ship Bluewater magazine "Offshere" Vol. 57, August, 1997, p. 134). This vessel is intended for oil production. The disadvantage of this famous ship is the fact that the residential unit is located in the aft end of the ship. Because turret ship always turns under the action of wind, fire and explosion in the area of technological complex may be detrimental to the residential module.This disadvantage is eliminated in the mining ships turret type with a nose location of the residential block and the offset of the axis of the turret in the nose from the fuselage mid-section. Today, these vessels are becoming more widely used.It is known, in particular, a vessel for production of hydrocarbons from offshore fields containing casing with the receiving cavity located in the nose from the fuselage mid-section, in which is placed a sentry gun with a swivel connecting device; >63 In 27/30, 1995 - prototype).The disadvantage of the prototype, as well as other known vessels for hydrocarbon production turret type, is that they are only for use on oil and gas condensate fields. These vessels provide the liquid product from the riser wells and processing of incoming product to the separation of crude oil, gas, and water, but cannot ensure the safe collection, treatment and transportation of products, gas and gas condensate fields.The technical result of the claimed invention is the ability to use turret ship for safe hydrocarbon gas and gas condensate fields.This is achieved in the vessel for production of hydrocarbons from offshore fields, comprising a housing with a receiving cavity located in the nose from the fuselage mid-section, in which is placed a sentry gun with a swivel connecting device; and placed in the nose of the residential units, technological and energy complexes, the fact that the technological system is manufactured in the gathering system gas condensate production wells with a block of input lines, interacting with the complex is SATA installation for condensate stabilization and installation of gas compression, and the latter is in the form of a superstructure mounted on the upper deck, and the block of input lines, equipment for the separation of gas and condensate and condensate stabilization placed in the hold of the vessel in the area of the mentioned add-ons, while the upper deck of the housing is fitted with a protective fireproof bulkhead separating technological complex from the rest of the body.The figure 1 depicts the inventive vessel for production of hydrocarbons, side view in longitudinal section;
in Fig. 2 is a view in plan on the deck of the hold;
in Fig. 3 is a view As in Fig. 2.The claimed vessel for production of hydrocarbons from offshore fields includes a housing 1 with the receiving cavity 2, located in the nose from the fuselage mid-section, which has a turret with 3 swivel connecting device 4 connected to the ship's piping (not shown), and placed in the nose of the residential units 5 and 6 technological and energy 7 complexes.To enable the extraction of hydrocarbons from gas and gas condensate offshore fields technological complex vessel 6 is made in the form of a system of 8 sbivki gas and condensate transport. System 10 includes equipment 11 for the separation of gas and condensate, the installation of 12 for condensate stabilization and installation 13 for gas compression. When this setting 13 is made in the form of a superstructure mounted on the upper deck 14. Block input lines 9, the equipment 11 days separation of gas and condensate and installation of 12 to stabilize the condensate is placed in the hold of the vessel 15.To ensure the safety of the upper deck 14 of the housing 1 is equipped with protective fire-resistant bulkheads 16, separating the processing facility, and the flare arrow 17 is installed in the stern of the ship.Declare the mining vessel is set in place for long-term Parking with anchors 18 and connects with wells or underwater mining complex (not shown) underwater pipelines 19 (flexible risers). From the rotary device 4 gas under pressure but the piping (not shown) flows into the indoor units of the input lines 9, where the production wells are distributed on technological lines (not shown) of system 10 for dehydration by low temperature separation method.After completion of the drying process of marketable gas is fed to the installation of 13 to compress, which preispolnennyy in the form of add-ons, mounted on the upper deck 14 of the vessel. After the process of compression of marketable gas through the rotary device 4 is supplied to the underwater pipeline (not shown) for transportation to shore. The separated condensate is fed to the installation of 12 condensate stabilization, and then through a rotary device 4 is sent for commercial implementation.Thus, the claimed vessel for production of hydrocarbons provides the entire cycle of production and preparation for transportation of gas and gas condensate production, with the barrage fire resistant bulkheads 16, mounted on the upper deck 14, a separate processing facility 6 from the rest of the housing 1, thereby creating a safe environment for operating the ship's crew. Vessel for production of hydrocarbons from offshore fields, comprising a housing with a receiving cavity located in the nose from the fuselage mid-section, which has a turret with a rotary expansion device, and placed in the nose of the residential units, technological and energy complexes, characterized in that the technological system is manufactured in the gathering system gas condensate production wells with a block of input lines, interact gas and condensate, installation for condensate stabilization and installation of gas compression, and the latter is in the form of a superstructure mounted on the upper deck, and the block of input lines, equipment for the separation of gas and condensate and condensate stabilization placed in the hold of the vessel in the area of the mentioned add-ons, while the upper deck of the housing is fitted with a protective fireproof bulkhead separating technological complex from the rest of the body.
FIELD: shipbuilding; manufacture of mobile research complexes.
SUBSTANCE: proposed complex is made in form of ship with small waterplane area having upper and lower hulls interconnected by means of telescopic columns for disconnection and autonomous motion of these hulls. Lower hull is submersible vehicle and upper hull is amphibian. Both hulls are provided with greenhouses and power units for generation of energy for motion of complex, domestic and technological purposes, as well as for growing vegetables, sea products and production of distilling water by motion of spheres with plant containers located spirally on their surfaces, thus ensuring generation of electric power. In addition to vegetation tubes with plants growing chains are provided where sea products are contained for distilling sea water by change in pressure and level of illumination and growing chains for growing fish and preparation of nutrient solution for plants. Lower hull is provided with plankton trawls for delivery of plankton for greenhouse and power plants of lower and upper hulls for growing fish and sea products. Amphibian supplies fresh air to submersible vehicle through its collector; it is also used for transportation of sections for erection of scientific research station. Provision is made for delivery of light to submersible vehicle through lenses, light conduits and structural sections and light conduits of collector of vehicle.
EFFECT: environment control.
4 cl, 22 dwg
FIELD: well drilling and hydrocarbon production equipment; performing operations in running underwater wells.
SUBSTANCE: tanker carries equipment on its deck for performing operations in underwater well which is dynamically positioned above subsea riser running from underwater well. Equipment is connected with subsea riser for performing non-rotary drilling at reduced hydrostatic pressure in well bore. Multi-phase mixture thus formed is divided on tanker and separated liquid hydrocarbons are stored in tanker storage tanks. Equipment for performing operations in underwater well may be mounted on superstructure above main deck. Equipment for non-rotary drilling in well bore at reduced hydrostatic pressure may be provided with spooled tubes and may be mounted near drill ship well located above subsea riser of well to which said equipment is to be connected or near mobile platform which may be shifted to outside position above subsea riser of well.
EFFECT: possibility of performing drilling operations without putting well out of operation.
5 cl, 5 dwg
FIELD: electric power engineering; windmill power generating plants.
SUBSTANCE: proposed floating coastal wind-operated truss is made in form of multi-link floating semi-submersible detachable structure forming one extended chain. One link consists of truss-pontoon (1) formed by two polygonal figures-pontoons (2,2') and tetragonal figure-pontoon (5-6-5'-6'). In vertices of figures (2,2'), in separate points of longer sides of figure (5-6-5'-6') and in their centers there are angular (3,3'), linear (7) and central (8,8') displacement-type truncated pyramids-floats with their vertices downward. They are connected with one another by means of hollow radial (10), bracing and inter-brace stiffening members. Mounted on angular (3,3') and linear (7) pyramids-floats on bearing shoes (20) of wind-operated turbine (21) are rotating electrical generators. Above-water platform with superstructure is supported by stiffening members and pyramid-float of figure (5-6-5'-6') by means of cylindrical supports. Arranged in pyramids-floats (8,8') and in their hermetic recesses and in superstructure is technological equipment connected with shore power system by means of underwater cable. Submergence of truss-pontoon (1) is performed by admitting sea water into ballast cavities of pyramids-floats (3,3', 7, 8, 8') through their kingston valves by gravity. For surfacing of truss-pontoon (1), use is made of ballast drainage system which consists of drainage pumps of pyramids-floats (8,8'), drainage ejectors of pyramid-floats (3,3' and 7) of discharge kingston valves and connecting pipe lines with fittings. For positioning the wind-operated truss and weighing the anchor, use is made of windlasses with anchor sprockets mounted on deck of each linear (7) and angular (3,3') pyramid-float in hermetic recess. Hermetic cavities of all pyramids-floats (3,3',7,8,8') are brought into communication through hollow stiffening members and internal hatches, access holes and apertures.
EFFECT: increased total power of plant; improved operating characteristics and maintainability.
3 cl, 12 dwg
FIELD: floating platforms for marine structures and raising of sunken vessels.
SUBSTANCE: proposed floating platform has floating hull with engine and propulsion plant and cargo-hoisting equipment and at least one self-contained lower module which is made in form of submarine and is rigidly connected with floating hull by means of joint complex including longitudinal slot made in floating hull bottom; said module is received by this slot; joint complex is also provided with articulation grips and diagonal rods with attachment unit for securing to floating hull and to module. Floating hull is reinforced by longitudinal and transversal arch-shaped structures located on its deck and provided with watertight bearing struts.
EFFECT: extended functional capabilities; enhanced efficiency.
FIELD: polar stations adaptable for extended drift in waters coated with ice cover.
SUBSTANCE: proposed drifting station has cylindrical hull with transformable domestic compartment with dome-shaped roof located above upper surface of ice and ballast reservoir located in under-ice part of hull. Located between domestic compartment and ballast reservoir in center portion of station hull are bio-energetic unit and rigidity ring made from interconnected reactors filled with water. Compartments of station are interconnected by means of lift trunk.
EFFECT: enhanced endurance; protracted time of operation of drifting station in autonomous mode.
6 cl, 6 dwg
FIELD: shipbuilding; building of pontoon ferries.
SUBSTANCE: proposed water craft consists of pontoons fastened together. Pontoons are provided with screen framework secured on hull along water surface embracing the bottom portion of hull. Part of framework is made in form of sections of pyramidal form.
EFFECT: enhanced operational reliability in winter periods.
FIELD: shipbuilding; building of floating structures.
SUBSTANCE: proposed floating structure has hull with supporting bearing mounted in its outer recess; this bearing is connected with supporting piles by means of chains. Displacement part of structure hull is divided by inner radial bulkheads; mounted on one of these bulkheads is engine whose shaft with propeller is brought out to open recess. Besides that, floating structure is provided with flying bridge and floating landing stage.
EFFECT: possibility of forming mobile floating structure rotating around its axis.
4 cl, 10 dwg
FIELD: shipbuilding; building floating structures, restaurants, for example.
SUBSTANCE: proposed floating structure includes round hull, decks, deck structure, pillars supporting second deck and roof. Floating structure has two identical halves interconnected in round hull. Lower round parts of floating structure is provided with port lights located above waterline. Identical halves have radial circular watertight bulkheads and watertight doors. Bottoms of each half have mating symmetrical half-bowls located in central part on the outer side and separated by spacer laid between them. Said half-bowls have blind threaded holes for securing plate with supporting bearing and chains holding the structure center in required point of water basin. Mating halves of floating structure have threaded holes with diameter exceeding diameter of fastening bolts; they are provided with double amount of watertight threaded plugs; thread of plugs correspond to thread of holes in structure halves. Pillars supporting the second deck and roof are provided with casings with unfolding curtains and locks securing them to decks.
EFFECT: reduction of scope of assembly jobs; possibility of towing floating structure through sea locks.
2 cl, 10 dwg
FIELD: drilling, particularly underwater drilling.
SUBSTANCE: method involves towing and installing floated support hollow structure so that barge passes in the support structure and provides drilling, wherein the support structure is located below water surface to provide barge having pontoons passage over the structure and the structure is provided with at least four posts with conical tips located out of structure contour so that the conical tips project above water surface; mounting derrick on the barge provided with remote holders with orifices spaced apart a distance equal to corresponding distances between above posts; directing the barge relative the support structure by aligning holder orifices with posts; filling pontoons with water to put the barge on the support structure; lifting barge with derrick by removing water from pontoons after drilling operation finishing so that holders are separated from the posts and removing the barge out of the support structure; arranging another barge provided with production equipment, pontoons and remote holders with orifices over the support structure and putting the barge on the support structure.
EFFECT: extended functional capabilities.
4 cl, 7 dwg
FIELD: drilling technology; marine drilling plants for drilling and production of oil and gas in coastal shelf.
SUBSTANCE: proposed marine drilling complex includes group of floating modules with pontoons and portal with drilling unit and tower and connecting lines. One module is movable and may be towed and coupled with other modules in turn which are stationary in their construction and are provided with well for drilling holes; portal with drilling unit and tower with connecting lines, living module, power unit, production equipment with storehouses and hinged bridge are mounted on movable module. Modules and bridge are provided with rail tracks which may be connected for motion of portal with drilling unit from movable module to stationary one.
EFFECT: enhanced economical efficiency of marine drilling complex.
7 cl, 7 dwg