Underwater double-unlocking connector

A connector and unlocking technology, which is applied in drilling equipment, wellbore/well parts, earthwork drilling and production, etc., can solve the problems of single hydraulic drive and inability to guarantee the connection process, so as to improve reliability, shorten the time of locking and unlocking Time, the effect of high offshore operation efficiency

Inactive Publication Date: 2013-10-16
CHINA UNIV OF PETROLEUM (BEIJING)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most of the existing underwater connectors are single hydraulic drive or mechanical drive, which cannot guarantee the complete reliability of the connection process, and cannot fully meet the challenges of the above problems.

Method used

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  • Underwater double-unlocking connector

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Embodiment Construction

[0039] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described with reference to the accompanying drawings.

[0040] Such as figure 1 , figure 2 , image 3 As shown, the present invention proposes an underwater double unlocking connector 100, which includes:

[0041] A continuous tubular body 1 such as figure 1 , figure 2 , image 3 with Figure 4 As shown, the top end of the main body 1 forms an interface 11 connected to the pipeline, and the first radial boss 12 and the second radial boss 13 are sequentially formed on the lower side of the interface 11. The first radial boss The diameter of 12 is larger than the diameter of the second radial boss 13; the first radial boss 12 is provided with a first through hole 121 and a second through hole 122 axially through;

[0042] An outer wall tube 2 (such as Figure 5 As shown), it i...

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PUM

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Abstract

The invention relates to an underwater double-unlocking connector. The connector comprises a through tubular main body, an outer wall drum sheathed outside the main body, a ring horn body arranged at the bottom end of the outer wall drum, a locking ring connected on the ring horn body, a piston barrel arranged between the main body and the outer wall drum in a sliding manner, and a mechanical unlocking sleeve sheathed at the upper part outside the outer wall drum in a sliding manner. By adopting the hydraulic and mechanical double-unlocking way, the underwater double-unlocking connector can realize accurate, high-efficiency and reliable locking and unlocking of an underwater well mouth or a hub base, and has high reliability and marine operation efficiency. The connector using a mechanical locking way of rack and pinion is simple in structure, convenient in operation, safe and reliable.

Description

technical field [0001] The invention relates to a connector used for connecting top tension risers and other rigid pipelines with underwater wellheads or hubs in the field of offshore oil engineering, in particular to an underwater double unlocking connector. Background technique [0002] In the field of offshore oil, various pipelines and risers are the guarantee for the transportation of oil and gas resources; with the increasing working water depth, how to realize the safety, reliability and rapid , Convenient connection is one of the important technologies to realize the reliable transportation of oil and gas resources. [0003] With the vigorous development of offshore oil technology, the operating water depth continues to increase, and there are more and more factors that are not conducive to installation such as underwater pressure and temperature. The installation cost and cost are also increasing rapidly, and the reliability requirements for connectors are also gett...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B33/038E21B17/02
Inventor 段梦兰董楠李婷婷高攀段青峰尹容衡张鹏
Owner CHINA UNIV OF PETROLEUM (BEIJING)
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