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Modular Relocatable Offshore Support Tower

a technology of supporting towers and modules, applied in the direction of caissons, vessel construction, transportation and packaging, etc., can solve the problem of the upper limit of the leg length that will allow controlled and stable transport of the jackup

Inactive Publication Date: 2013-10-17
HORTON WISON DEEPWATER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention provides an offshore support tower assembly and a method for deploying it. The support tower assembly includes a base, a plurality of anchors securing the base to the sea floor, and a support frame comprising modular tower sections in a stacked arrangement and a deck. The method involves lowering the base and securing it to the sea floor with the anchors, installing the support frame on the base, and coupling a deck to the support frame. The offshore tension leg platform (TLP) is also provided, which includes a base, a plurality of tendons releasably coupled to the base, and a deck. These features improve the stability and flexibility of the offshore support tower assembly and enable more efficient and safe deployment in offshore environments.

Problems solved by technology

However, since a jackup platform is transported offshore with its deck floating on the sea surface at the lower ends of the legs (i.e., the legs are fully retracted and extending upward from the deck), there is an upper limit to the length of the legs that will allow controlled and stable transport of the jackup.

Method used

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  • Modular Relocatable Offshore Support Tower
  • Modular Relocatable Offshore Support Tower
  • Modular Relocatable Offshore Support Tower

Examples

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Embodiment Construction

[0036]The following discussion is directed to various exemplary embodiments. However, one skilled in the art will understand that the examples disclosed herein have broad application, and that the discussion of any embodiment is meant only to be exemplary of that embodiment, and not intended to suggest that the scope of the disclosure, including the claims, is limited to that embodiment.

[0037]Certain terms are used throughout the following description and claims to refer to particular features or components. As one skilled in the art will appreciate, different persons may refer to the same feature or component by different names. This document does not intend to distinguish between components or features that differ in name but not function. The drawing figures are not necessarily to scale. Certain features and components herein may be shown exaggerated in scale or in somewhat schematic form and some details of conventional elements may not be shown in interest of clarity and concis...

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Abstract

An offshore support tower assembly comprises a base disposed at the sea floor. In addition, the support tower assembly comprises a plurality of anchors securing the base to the sea floor. Further, the support tower assembly comprises a support frame coupled to the base. The support frame comprises plurality of modular tower sections in a stacked arrangement. The support tower assembly also comprises a deck supported by the support frame.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application claims the benefit of U.S. provisional patent application Ser. No. 61 / 539,349 filed Sep. 26, 2011, and entitled “MODULAR RELOCATABLE OFFSHORE SUPPORT TOWER,” which is hereby incorporated herein by reference in its entirety.STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT[0002]Not applicable.BACKGROUND[0003]1. Field of the Invention[0004]The invention relates generally to offshore structures. More particularly, the invention relates to subsea structures for supporting a marine deck or topsides.[0005]2. Background of the Technology[0006]Offshore production structures are used to store and offload hydrocarbons (e.g., oil and gas) produced by subsea wells. There are several different types of offshore production structures that are typically selected based on the depth of water at the well location. For instance, jackup platforms are commonly employed as drilling structures in water depths less than about 400 f...

Claims

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Application Information

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IPC IPC(8): E02B17/00E02D7/20E02B17/02
CPCE02B17/00E02B17/02E02D7/20E02B17/0004E02B17/021E02B17/027E02B2017/0039E02B2017/0043E02B2017/0047E02B2017/0095B63B21/27B63B21/502B63B2021/505E02D27/425
Inventor HORTON, III, EDWARD E.
Owner HORTON WISON DEEPWATER
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