Compact and rapid tubing hanger

A kind of tubing hanging and fast technology, which is applied in wellbore/well components, earthwork drilling, sealing/packing, etc., can solve the problem that the four-way can not achieve full diameter, and achieve the effect of improving operation efficiency and saving operation time.

Inactive Publication Date: 2014-01-22
US DIAMOND OIL DRILLING SYST ENG (SHANGHAI) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the traditional tubing hanger design, most of them use top wire 10 to fix the tubing hanger, and the tubing hanger needs to sit and hang on the steps in the inner cavity of the four-way, so the four-way must be designed with a corresponding set-up step 11. Existence, the four-way can not meet the requirements of full-bore

Method used

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  • Compact and rapid tubing hanger
  • Compact and rapid tubing hanger
  • Compact and rapid tubing hanger

Examples

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Embodiment Construction

[0026] The present invention will be further described below in conjunction with the embodiments and the accompanying drawings.

[0027] refer to figure 2 with Figure 5 , the present invention includes a mandrel-type oil pipe hanger body 1 and a four-way body 8, and the oil pipe hanger body 1 is seated and hung in the inner cavity of the four-way body 8.

[0028] The lower end of the mandrel type tubing hanger body 1 is covered with a support ring 3, and the pipe hanger body 1 at the lower end of the support ring 3 is provided with a threaded ring 2 through threaded connection, and the threaded ring 2 can hold the support ring 3 in the axial direction. fixed.

[0029] The upper end of the mandrel-type tubing hanger body 1 is covered with a locking ring 5, and the upper end of the locking ring 5 is provided with a sealing bag body 6 on the pipe hanger body 1 through threaded connection.

[0030] refer to image 3 with Figure 4 , the support ring 3 and the locking ring 5...

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Abstract

A compact and rapid tubing hanger comprises a mandrel type tubing hanger body and a cross body. The tubing hanger body is hung in a cavity of the cross body, a supporting ring is sleeved at the lower end of the mandrel type tubing hanger body, a threaded ring is in threaded connection with the tubing hanger body at the lower end of the supporting ring, the supporting ring is fixed axially by the threaded ring, a lock ring is sleeved on the mandrel type tubing hanger body, a sealing pack is in threaded connection with the tubing hanger body at the upper end of the lock ring, and grooves corresponding to shapes of the supporting ring and the lock ring are formed in the inner wall of the cavity of the cross body. According to the compact and rapid tubing hanger, bearing steps of the cavity of the cross body are not required to be designed, the full bore requirement of the wellhead and the cross is met; a novel retaining lock mode is used, a traditional top thread lock structure is abandoned, and getting down and lock can be completed through one step, so that the preset operation efficiency is greatly improved, and operation time is saved.

Description

technical field [0001] The invention relates to oil extraction equipment, in particular to a novel compact quick tubing hanger (coiled tubing) hanging device connected between an oil well Christmas tree and a production pipeline. Background technique [0002] In the prior art, the tubing suspension device is an important part to realize the connection between the oil well Christmas tree and the production pipeline. Its main function is to hang the tubing string, seal the annular space between the tubing string and the casing string, and provide a channel for the production well fluid . [0003] At present, the coiled tubing suspension has been widely used at home and abroad to realize the velocity string for oil recovery or gas production. Many oil and gas fields plan to use coiled tubing for oil and gas wells, and then hang the coiled tubing at the wellhead for coiled tubing production or other operations. In the traditional tubing hanger design, most of them use top wire...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B33/04
Inventor 黄河
Owner US DIAMOND OIL DRILLING SYST ENG (SHANGHAI) CO LTD
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