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Mechanical subsea production tree picking-up and conveying tool

A kind of underwater Christmas tree and mechanical technology, applied in the direction of earthwork drilling, wellbore/well components, sealing/packing, etc., can solve the problems of cumbersome locking devices, achieve simple and compact structure, facilitate underwater observation, The effect of ensuring operational safety

Active Publication Date: 2018-03-02
BAOJI PETROLEUM MASCH CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a mechanical underwater Christmas tree pick-up and delivery tool, which solves the cumbersome problem of the locking device between the Christmas tree and the pick-up and delivery tool in the prior art

Method used

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  • Mechanical subsea production tree picking-up and conveying tool
  • Mechanical subsea production tree picking-up and conveying tool

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Embodiment Construction

[0022] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0023] The present invention is a mechanical underwater Christmas tree pick-up and delivery tool, such as figure 1 As shown, it includes a suspension part 1, the lower end of the suspension part 1 is connected with the tool body 2, and the upper end of the tool body 2 is provided with an ROV operation handle 3, as figure 2 As shown, the ROV operating handle 3 is fixedly connected with a safety fixing pin 13, and the diameter of the middle part of the outer circumference of the tool body 2 is reduced to form a shoulder 4. 4 contacts and can rotate along it, and there is not less than one driving handle 14 on the outer circumference of the driving ring 5. When in use, the ROV rotates the driving handle 14 so that the driving ring 5 rotates around the tool body 2; the side wall of the driving ring 5 A plurality of guide grooves 6 are evenly ar...

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Abstract

The invention discloses a mechanical subsea production tree picking-up and conveying tool comprising a suspension piece. The lower end of the suspension piece is connected with a tool main body; a shoulder is formed by hole shrinkage of the middle of the external circumference of the tool main body and provided with a horn-shaped driving ring; the small-diameter end of the driving ring makes contact with the shoulder and can rotate along the shoulder; a plurality of guiding grooves are evenly formed in the side wall of the driving ring, and the two ends of each guiding groove have the height difference; the inner sides of the guiding grooves are movably connected with pin shafts; an annular groove is formed in the inner side wall of the middle of the tool main body; a through hole communicating with the annular groove is formed in the side wall of the tool main body; locking blocks are arranged in the annular groove, locking teeth matched with a locking annular groove in the outer circle of the production tree are arranged at one ends of the locking blocks, and the other ends of the locking blocks are connected with connecting rods; and the connecting rods penetrate through the through hole in the side wall of the tool main body to be connected with the pin shafts. The driving ring is operated through a ROV to drive the pin shafts, the locking blocks and the connecting rods torotate, and accordingly the subsea production tree is locked or unlocked.

Description

technical field [0001] The invention belongs to the technical field of offshore oil drilling and production equipment, and relates to a mechanical underwater Christmas tree pick-up and delivery tool. Background technique [0002] Subsea Christmas tree is the key equipment for underwater oil and gas development. Its installation operation needs to be aligned with the underwater wellhead device and installed and locked to prepare for underwater oil and gas exploitation. Due to the complex structure of the underwater Christmas tree, the function There are many, and it is required to form a reliable and sealed connection with the underwater wellhead device, which makes it difficult to lift, install and lock it, and it is difficult to operate. The underwater operation process of the existing Christmas tree pick-up and delivery tools is complicated, the lifting and transportation of the underwater Christmas tree is not safe, and it cannot be effectively docked with the underwater ...

Claims

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Application Information

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IPC IPC(8): E21B23/00E21B33/035
CPCE21B23/00E21B33/035
Inventor 万春燕樊春明李中华李光飞
Owner BAOJI PETROLEUM MASCH CO LTD
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