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

CN103016731AActive Publication Date: 2013-04-03TIANJIN ANTON PETROLEUM MACHINERY MFG
11 Cites 3 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2013-04-03

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
Patent Text Reader

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.
Need to check novelty before this filing date? Find Prior Art

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...

Examples

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...