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Underwater Christmas tree mounting and recovery tool

A technology of underwater Christmas trees and tools, which is applied in the direction of earthwork drilling, wellbore/well components, etc., can solve the problems of connection failure between the Christmas tree and the installation tool of the Christmas tree, achieve good locking effect, increase safety, and avoid The effect of locking failure

Pending Publication Date: 2021-03-02
CHONGQING QIANWEI SCI & TECH GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing Christmas tree installation tools usually use hydraulic oil to drive the lock block to protrude to realize the connection and unlocking between the Christmas tree and the Christmas tree installation tool. Risk of connection failure

Method used

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  • Underwater Christmas tree mounting and recovery tool
  • Underwater Christmas tree mounting and recovery tool
  • Underwater Christmas tree mounting and recovery tool

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Experimental program
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Embodiment Construction

[0040] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0041] During specific implementation: if figure 1 , image 3 and Figure 4 As shown, the underwater tree is equipped with a recovery tool, including: a tool inner cylinder 2, a tool outer cylinder 1, a guide cylinder 4, a lock block outer shell 12, a bottom plate 7, a drive ring 18 and a lock block 11.

[0042] Tool inner barrel 2 has a structure such as Figure 6 As shown, the structure of the tool outer cylinder 1 is as follows Figure 5 As shown, the tool outer cylinder 1 is set on the outside of the tool inner cylinder 2, and the two are connected and fixed by hexagon socket bolts. The outer tool cylinder 1 includes a small section 101 , a middle section 102 and a large section 103 arranged sequentially from top to bottom. The outer diameters of the small section 101 , middle section 102 and large section 103 gradually increase, so that the tool oute...

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Abstract

The invention relates to the field of offshore oil drilling and production equipment, and particularly discloses an underwater Christmas tree mounting and recovery tool. The underwater Christmas treemounting and recovery tool comprises a tool inner barrel, a tool outer barrel, a guide barrel, a locking block outer sleeve, a bottom plate, a driving ring and a locking block. The spiral descending of the guide barrel can be realized through the matching between spiral guide holes in the guide barrel and guide pins on the tool outer barrel, therefore, the driving ring is driven to descend axially, and locking blocks are driven to extend out, so that locking between the tool and a Christmas tree is achieved; and according to the underwater Christmas tree mounting and recovery tool, the lockingblocks extend out through a mechanical structure, so that locking between the mounting and recovery tool and the Christmas tree is achieved, the problem that locking fails due to the fact that hydraulic work is abnormal when a traditional tool drives the locking blocks to be locked through hydraulic oil is solved, and therefore, the locking safety between the underwater Christmas tree mounting and recovery tool and the Christmas tree is improved.

Description

technical field [0001] The invention belongs to the technical field of offshore oil drilling and production equipment, and in particular relates to a recovery tool for installing an underwater Christmas tree. Background technique [0002] In the process of offshore oil exploration and development, the underwater Christmas tree is one of the key equipment. The Christmas tree installation tool is used for the feeding, installation and recovery of the subsea Christmas tree, and the locking of the Christmas tree is realized through the locking block structure. [0003] The existing Christmas tree installation tools usually use hydraulic oil to drive the lock block to protrude to realize the connection and unlocking between the Christmas tree and the Christmas tree installation tool. Risk of connection failure. [0004] Therefore, the applicant considers designing a more secure subsea tree installation recovery tool. Contents of the invention [0005] Aiming at the deficienc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B23/00
CPCE21B23/00Y02A20/204
Inventor 刘书杰蒋永义杜振伟黄熠王尔钧李炎军刘和兴孟文波管申张崇董钊何柏君张伟林李洪伟
Owner CHONGQING QIANWEI SCI & TECH GRP
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