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Hydraulic oil pipe hanger for shallow water underwater Christmas tree and matched device of hydraulic oil pipe hanger

A technology of underwater Christmas trees and hydraulic tubing, which is applied in the field of oil drilling and production, and can solve problems such as cumbersome operations, time-consuming and labor-intensive operations

Pending Publication Date: 2022-07-12
CHINA NATIONAL OFFSHORE OIL (CHINA) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a hydraulic tubing hanger for shallow water submerged Christmas tree and its supporting device, which is used to solve the problem of operating the tubing hanger in the current subsea Christmas tree only by relying on mechanical connection for installation and disassembly. Complicated, time-consuming and labor-intensive issues

Method used

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  • Hydraulic oil pipe hanger for shallow water underwater Christmas tree and matched device of hydraulic oil pipe hanger
  • Hydraulic oil pipe hanger for shallow water underwater Christmas tree and matched device of hydraulic oil pipe hanger
  • Hydraulic oil pipe hanger for shallow water underwater Christmas tree and matched device of hydraulic oil pipe hanger

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0079]Example 1: A Hydraulic Tubing Hanger for Shallow Water Subsea Christmas Trees

[0080] Embodiment 1 provides a kind of hydraulic tubing hanger for shallow water underwater Christmas tree, with hydraulic oil as the power, is installed on the Christmas tree 100 by the delivery tool, in order to suspend the production string, its structure is below in conjunction with accompanying drawing Describe in detail.

[0081] refer to Figure 1 to Figure 3 , and combine Figure 20 , the hydraulic tubing hanger for shallow water underwater Christmas tree includes hanger body 1, hanger body outer sleeve 2, setting ring extension sleeve 3, setting ring 4, serrated locking ring 5 and bottom bushing 6.

[0082] refer to Figure 4 to Figure 7 , the hanger body 1 is divided into an upper part, a middle part, a lower part and a bottom end in turn from top to bottom, wherein the middle part of the hanger body 1 is thicker, and the upper part, the lower part and the bottom end of the hang...

Embodiment 2

[0097] Embodiment 2: A kind of supporting device of hydraulic tubing hanger for shallow water underwater Christmas tree

[0098] Embodiment 2 provides a kind of supporting device for the hydraulic tubing hanger for shallow water underwater Christmas tree, which is used in conjunction with the hydraulic tubing hanger for shallow water underwater Christmas tree in Embodiment 1, and the structure is carried out below in conjunction with the accompanying drawings. Detailed Description.

[0099] The supporting device of the hydraulic tubing hanger includes a retrieval tool and a Christmas tree 100 .

[0100] refer to Figure 10 , Figure 13 to Figure 17 , the pickup tool includes a pickup tool body 200, the inner wall of the lower end of the pickup tool body 200 is provided with a pickup tool sawtooth locking ring 205, specifically, the lower end of the pickup tool body 200 is provided with a second Boss, the serrated locking ring 205 of the retrieval tool is arranged on the sec...

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Abstract

The invention discloses a hydraulic oil pipe hanger for a shallow water underwater Christmas tree and a matched device thereof, the hydraulic oil pipe hanger comprises a hanger body, the upper part of the hanger body is sequentially provided with a hanger body outer sleeve, a setting ring and a sawtooth locking ring from top to bottom; a setting ring extension sleeve is arranged on the hanger body outer sleeve in a sleeving manner, a sleeving groove is formed in the inner wall of the hanger body outer sleeve, and locking teeth are arranged on the outer wall of the sawtooth locking ring; the matching device of the hydraulic oil pipe hanger comprises a taking and delivering tool and a Christmas tree. According to the hydraulic oil pipe hanger suitable for the shallow water underwater Christmas tree and the matched device of the hydraulic oil pipe hanger, mounting and dismounting are convenient, the hydraulic oil pipe hanger can be put down, locked and the like in the Christmas tree in cooperation with a taking and sending tool special for the hydraulic hanger and the Christmas tree, and the working efficiency is improved. The problems that an existing oil pipe hanger in an underwater Christmas tree is tedious in installation and disassembly operation, and time and labor are wasted are solved.

Description

technical field [0001] The invention relates to the technical field of oil drilling and production, in particular to a hydraulic tubing hanger for shallow water underwater Christmas trees and a matching device thereof. Background technique [0002] Subsea Christmas tree is widely used in underwater oil and gas field exploitation process, and it is an important equipment for oil recovery process after drilling and completion. The tubing hanger is the main component installed in the subsea Christmas tree by means of the delivery tool. Its function is not only to hang the production string and seal the annular space between the production string and the oil layer casing, but also to provide oil flow, workover, Provide channels for downhole safety valve hydraulic pressure, chemical reagent injection, etc. The current tubing hanger is connected to the underwater Christmas tree and the delivery tool using a mechanical connection such as threaded connection. In the process of inst...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B23/04E21B47/10
CPCE21B23/0411E21B23/042E21B47/10
Inventor 米立军李中王彬王名春张会增于小涛葛居良姚旺
Owner CHINA NATIONAL OFFSHORE OIL (CHINA) CO LTD
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