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Subsea clamp connector emergency release tool and method

A connector, fastening technology, used in the field of emergency release tools

Inactive Publication Date: 2013-09-25
AKER SUBSEA AS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, this does not directly relate to underwater emergency release of fastening connectors used to lock underwater components

Method used

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  • Subsea clamp connector emergency release tool and method
  • Subsea clamp connector emergency release tool and method
  • Subsea clamp connector emergency release tool and method

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Embodiment Construction

[0045] A specific non-limiting description of merely exemplary preferred embodiments of the present invention is provided below.

[0046] The invention discloses an emergency release tool for a fastening connector designed for underwater operation when the underwater fastening connector cannot be released normally. The tool is steered and operated by an operational grade underwater vehicle (ROV) tool, releasing the fastening connector by cutting the body of the fastening connector around a jack screw to open the fastening connector.

[0047] The emergency release tool has a simple structure and can be applied by an underwater vehicle (ROV) in underwater conditions and is used to achieve cutting around the jack screw as explained in the preceding paragraphs. Here lies the uniqueness of the emergency release tool of the present invention, which enables the release of the fastening connector in an underwater environment in an inviolable manner, so that the fastening assembly can ...

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PUM

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Abstract

A clamp connector emergency release tool designed for subsea operations, when normal release of a subsea clamp connector (14) is not possible, is shown and described. The tool is adapted to be handled and operated remotely by a work class ROV tool. The tool includes a clamp connector (14) adapter housing (7) arranged to engage with and connect to the clamp connector (14) body, a rotatable hole saw (11) mounted on the housing (7), a rotary motor (1) in driving connection with the hole saw (11) and a piston (3) and cylinder assembly (4,5). The piston (3) and cylinder assembly (4,5) enables advancing the rotatable hole saw (11) into the clamp connector (14) body around its jack screw, in order to separate the jack screw together with a threaded portion of said clam connector (14) in order to separate the jack screw from the clamp connector (14) body.

Description

technical field [0001] The present invention generally relates to an emergency release tool for connectors designed for underwater operation, and to a method of emergency releasing said fastening connector using said tool. [0002] More specifically, the present invention relates to an emergency release tool for fastening connectors suitable for underwater operation, which tool can be applied when the underwater connector cannot be released by normal mechanisms. [0003] More particularly, the invention relates to an emergency release tool according to the preamble of claim 1 and a method for releasing an underwater fastening connector according to the preamble of claim 9 . [0004] The fastening connector emergency release tool is suitable for remote steering and operation by an operational grade underwater vehicle (ROV). Background technique [0005] The use of subsea fastening connectors is common in onshore and offshore operations, eg, for the exploration and production...

Claims

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Application Information

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IPC IPC(8): E21B29/12B23D57/00
CPCB23D57/0084B27B5/12Y10T408/21Y10T408/03Y10T408/55E21B29/12
Inventor 托马斯·瓦瑟彼
Owner AKER SUBSEA AS