Sealing ring used for tieback plug

A technology of sealing rings and connectors, which is applied in the direction of engine sealing, engine components, mechanical equipment, etc., can solve problems such as increasing operating costs, increasing downhole operation risks, and sealing failure, so as to improve construction efficiency, reduce construction risks, The effect of saving operating costs

Active Publication Date: 2013-04-03
TIANJIN ANTON PETROLEUM MACHINERY MFG
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In such a special environment, traditional seals rely on sealing grooves and corresponding sealing rings for sealing, and it is easy to cause seal failure due to wear and extrusion.
If the seal fails during the acid fracturing stimulation operation, the fracturing must be stopped, and the downhole tie-back part and the pipe string several kilometers above it shall be taken out to replace the sealing ring. This will not only seriously affect the construction efficiency, increase the operating cost, but also increase the Greater downhole operation risk
Therefore, the reliability of the traditional tie-back plug sealing parts cannot be guaranteed, which requires a more reliable seal

Method used

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  • Sealing ring used for tieback plug
  • Sealing ring used for tieback plug

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Embodiment Construction

[0016] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments, but not as a limitation of the present invention.

[0017] figure 1 It is a structural sectional view of the sealing ring for the tieback plug of the present invention. Such as figure 1 As shown, the sealing ring for the tie-back plug includes a sealing ring body 1, and two sealing grooves are arranged in parallel on the sealing ring body. Sealing rings 2 are respectively arranged in the sealing grooves, and the sealing rings 2 are fixedly connected with the sealing ring body 1 as a whole. The sealing ring 2 is vulcanized nitrile rubber filled in the sealing groove through the mold. The inside and outside of both ends of the sealing ring body 1 have chamfers respectively. The inner wall of the sealing ring body 1 has an annular groove 3 for arranging the sealing ring in the circumferential direction. When the sealing ring is assemb...

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Abstract

The invention discloses a sealing ring used for a tieback plug. The sealing ring used for the tieback plug comprises a sealing ring body, wherein the sealing ring body is provided with a sealing groove, and the inside of the sealing groove is provided with a sealing circle fixedly connected with the sealing ring body into a whole. The sealing ring used for the tieback plug, which is disclosed by the invention, has the characteristic of small possibility of being damaged and fallen, and the reliability of the tieback plug is effectively improved.

Description

technical field [0001] The invention relates to the technical field of oil and gas well production equipment, in particular to a sealing ring for a tieback plug. Background technique [0002] With the development of oil and gas field development technology, in order to improve oil and gas recovery, many horizontal wells choose horizontal well staged acid fracturing open hole completion method. In the process of implementing acid fracturing stimulation, after the lower pipe string is lowered to the bottom of the well, it needs to be inserted back into the production tubing string with the tie-back plug for fracturing and production, and the sealing ring is a crucial seal for the tie-back plug part. At present, the traditional sealing parts in the market are directly processing the sealing groove on the tie-back plug or processing the sealing groove on the sealing ring, and relying on the installation of O-rings or V-rings to complete the sealing task. The sealing part of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16J15/06F16J15/10
Inventor 张鼎业张红乔鸿云王鹏
Owner TIANJIN ANTON PETROLEUM MACHINERY MFG
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