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Tension leg platform with improved hydrodynamic performance

A tension leg platform, horizontal technology, applied in the direction of fluid dynamics/hydrostatics characteristics, motor vehicles, floating buildings, etc., can solve high-risk, expensive and other problems

Inactive Publication Date: 2013-02-20
MODEC INT L L C
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Offshore installation of decks is an expensive and high risk operation as it usually requires the use of heavy lift vessels or floating deck installation techniques
In addition, the offshore installation of the deck requires a relatively long period of good weather

Method used

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  • Tension leg platform with improved hydrodynamic performance
  • Tension leg platform with improved hydrodynamic performance
  • Tension leg platform with improved hydrodynamic performance

Examples

Experimental program
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Effect test

Embodiment Construction

[0032] US Patent No. 7,140,317, issued November 28, 2006 to Wybro et al., entitled "Central Pontoon Semisubmersible Floating Platform," is incorporated herein by reference in its entirety.

[0033] image 3 and Figure 4 A tension leg platform 10 for offshore applications such as offshore oil and gas drilling and production is shown according to a preferred embodiment of the present invention. The platform 10 has a hull 11 comprising a vertical support column 12 and a central pontoon structure 14 arranged inside the column at its lower end. The TLP 10 includes a deck structure 13 supported by the upper ends of columns 12 .

[0034] The interior of both the column 12 and the buoy structure 14 are preferably separated by a structural bulkhead (not shown) to strengthen the structure to provide an enclosed space for locating and storing various equipment (e.g., anchors, chains, propulsion mechanisms, etc.) , and in order to provide a plurality of individual tanks for ballasting...

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PUM

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Abstract

A tension leg platform that is stable with a quayside-integrated deck without the use of temporary stability modules or specialized installation techniques. The hull preferably consists of four radially-oriented vertical comer columns connected with four central ring pontoon segments. The vertical columns are fixed to the outer periphery of the central pontoon. The columns are characterized by a major radial axis and a minor transverse axis. The mooring system includes tendons supported at tendon porches directly at the four column outboard lower corners, without additional radially-extending tendon support structures.

Description

technical field [0001] The present invention relates generally to TLPs such as those used in offshore oil and gas drilling and production, and more particularly to TLPs having sufficient inherent stability to allow for quay integration of the superstructure, incorporating integrated The hull and topsides are towed to the installation site and installed, all without the use of temporary stabilization modules or other specialized equipment. Background technique [0002] In the offshore oil and gas industry, floating vessels such as tension leg platforms (TLPs) for drilling and / or production are common. A TLP is a floating platform used for drilling and production in relatively deep water. A typical TLP hull configuration consists of one, three or four columns and three or four pontoons connecting the columns below the water surface. Columns and pontoons are usually of rectangular or cylindrical cross-section. The superstructure is carried on top of the columns and includes ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B63B35/44
CPCE02D27/52B63B1/107B63B21/502B63B35/4413B63B2001/128B63B35/44
Inventor W·S·罗尔斯A·C·基里亚基德斯S-C·李凌奇G·缪
Owner MODEC INT L L C
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