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Inclined upright truss type semi-submersible oil production platform

An oil production platform and truss-type technology, applied in the direction of floating buildings, etc., can solve the problems that are not conducive to the adjustment and control of operators, increase operating costs, and serious economic losses, etc., achieve good heave motion performance and reduce the suffered bending moment , the effect of large draft

Inactive Publication Date: 2015-11-25
SHANGHAI OCEAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with dry oil recovery, wet oil recovery not only has higher investment costs, but also is not conducive to operator adjustment and control
Especially when the oil production rate is too low or even no oil, it is necessary to rent a mobile drilling platform for workover, which greatly increases the operating cost, and the economic loss caused by the shutdown is even more serious

Method used

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  • Inclined upright truss type semi-submersible oil production platform
  • Inclined upright truss type semi-submersible oil production platform
  • Inclined upright truss type semi-submersible oil production platform

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Embodiment

[0024] figure 1 It is a structural schematic diagram of an inclined column truss type semi-submersible oil production platform in an embodiment of the present invention.

[0025] figure 2 It is the A-A sectional schematic diagram of the inclined column in the embodiment of the present invention.

[0026] image 3 It is the B-B sectional schematic diagram of the annular buoyant tank in the embodiment of the present invention.

[0027] Such as figure 1 , figure 2 with image 3 As shown, the truss type semi-submersible oil production platform with inclined columns has: platform deck 1, inclined columns 2, annular buoyancy tank 3, space truss structure 4 and heave plate 5.

[0028] The platform deck 1 is horizontally arranged above the waterline, and an oil and gas processing module is arranged inside, and a drilling module 1-1 is arranged on the top.

[0029] The sectional shape of inclined column 2 can be circular, square or quasi-circular, and the sectional shape of in...

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Abstract

The invention provides an inclined upright truss type semi-submersible oil production platform, which is used for offshore oil production. The platform is characterized by comprising a platform deck, at least three inclined uprights, an annual floating tank, a space truss structure and at least one heaving board. The platform deck is arranged above the waterline plane horizontally; the at least three inclined uprights are uniformly distributed below the platform deck, and are inclined towards the normal axis of the geometric center of the platform deck, the upper ends of the inclined uprights are fixedly connected to the platform deck and the lower ends of the inclined uprights extend to a position below the waterline plane; the annual floating tank is arranged below the waterline plane and fixedly connected to the lower ends of the inclined uprights; the upper ends of the space truss structure is fixedly connected with the annual floating tank to form a whole body; the at least one heaving board is horizontally arranged in the space truss structure.

Description

technical field [0001] The invention relates to an oil production platform, in particular to an inclined column truss type semi-submersible oil production platform which adopts a combination of an inclined column, a space truss structure and a heave plate. Background technique [0002] The current semi-submersible oil production platform is a floating platform widely used in offshore oil and gas development. Compared with the tension leg platform and the deep draft single column platform, due to its larger heave motion, the riser stroke is required to be larger. At present, the semi-submersible platform in industrial applications can only use wet oil production. [0003] Wet production is to install the Christmas tree at the subsea wellhead, while dry production is to install the Christmas tree on the platform deck. Compared with dry oil recovery, wet oil recovery not only has higher investment costs, but also is not conducive to operator adjustment and control. Especially...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B63B35/44
Inventor 姜哲崔维成王芳宋婷婷
Owner SHANGHAI OCEAN UNIV
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