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.

 

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