Subsea tree cap running tool

A technology for underwater Christmas trees and feeding tools, which is applied in earthwork drilling, wellbore/well components, sealing/isolation, etc. It can solve the problems of immature technology, unreasonable structure, high cost, etc., and achieve safe and reliable operation , Easy operation and simple structure
CN107939328BInactive Publication Date: 2019-11-29CHONGQING QIANWEI SCI & TECH GRP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHONGQING QIANWEI SCI & TECH GRP
Publication Date
2019-11-29
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses an underwater tree cap feeding tool. The underwater tree cap feeding tool comprises a tool body, a drive connection mechanism and a connection and separation mechanism; an overall shape of the tool body is of a cylindrical structure, and the top of the tool body in the height direction is a connecting part for being connected with a drill rod; the drive connection mechanismis installed at the middle part of the tool body in the height direction in a sleeving mode, the drive connection mechanism is used for driving an actuation ring of an underwater tree cap, so that the underwater tree cap is connected with an underwater horizontal type Christmas tree in a locked mode; the drive connection mechanism includes an actuating piston, a piston driving structure and a temporary limiting structure before driving; the connection and separation mechanism is installed at the bottom part of the tool body in the height direction in a sleeving mode, and the connection and separation mechanism is used for connecting with or separating from the underwater tree cap; and the connection and separation mechanism includes a lower baffle ring, a locking ring, a drive ring, and adriving structure for the drive ring. The underwater tree cap feeding tool has the advantages of simple structure, reliable performance and convenient use, and is suitable for being popularized and used.
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Description

technical field

[0001] The invention belongs to the field of installing tools for underwater horizontal Christmas trees, in particular to a feeding tool for underwater horizontal Christmas trees with a built-in Christmas tree cap. Background technique

[0002] The subsea tree cap is a key part of the assembly of the subsea horizontal tree body, and the subsea tree cap is used to provide a sealed barrier for the wellbore and the external environment above the tubing hanger.

[0003] The notification number in the prior art is: the patent of CN203822239U discloses a kind of "built-in christmas tree cap for underwater horizontal christmas tree", the "built-in christmas tree cap for underwater horizontal christmas tree" (see the attached figure 1 (shown) includes the tree cap body 7 arranged above the tubing hanger 01 in the tree body 00 and under the anti-slag cap. The outer middle part of the tree cap body 7 is fixed with a protruding hole protruding from the outer surface of ...

Claims

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