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Sealing device for high temperature well head

A sealing device and high-temperature technology, which is applied in the direction of engine sealing, engine components, mechanical equipment, etc., can solve the problems of suspension seal failure and other problems, and achieve the effect of reasonable structure, convenient use, and guaranteed sealing

Inactive Publication Date: 2018-12-11
JINHU FUYUAN MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the conventional wellhead sealing operation, only the casing hanger is installed for sealing, but when the wellhead temperature is too high, the hanger seal may fail. Therefore, in order to better ensure the sealing performance of the wellhead, a high temperature resistant Sealing means

Method used

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  • Sealing device for high temperature well head
  • Sealing device for high temperature well head

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Embodiment Construction

[0017] The present invention is described in further detail now in conjunction with accompanying drawing. These drawings are all simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, so they only show the configurations related to the present invention.

[0018] like figure 1 As shown, the high-temperature wellhead sealing device includes a sealing sleeve body 1, and also includes an inner pressure ring 4 and an outer pressure ring 5, and two inner sealing rings stacked between the inner pressure ring 4 and the sealing sleeve body 1 are arranged. 2. The inner sealing ring 2 is located on the inner wall of the sealing sleeve body 1; two outer sealing rings 3 are arranged superimposedly between the outer pressure ring 5 and the sealing sleeve body 1, and the outer sealing ring 3 is located on the sealing sleeve At the outer wall of the body 1; the inner sealing ring 2 and the outer sealing ring 3 are made of gra...

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PUM

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Abstract

The invention discloses a sealing device for high temperature well head. The sealing device includes a sealing sleeve body. The sealing device also includes an inner pressing ring and an outer pressing ring. A plurality of inner sealing rings are arranged between the inner pressing ring and the sealing sleeve body. The inner sealing rings are located at the inner wall of the sealing sleeve body. Aplurality of outer sealing rings are arranged between the outer pressing ring and the sealing sleeve body. The outer sealing rings are located at the outer wall of the sealing sleeve body. The innersealing rings and the outer sealing rings are made of graphite. The sealing device of the invention adopts the graphite sealing strips, is resistant to high temperature, is mounted in the well head, and can activate the sealing after hanger sealing fails to ensure the sealing of the well head.

Description

technical field [0001] The invention relates to a sealing device; in particular, it relates to a sealing device for a high-temperature well head. Background technique [0002] In the conventional wellhead sealing operation, only the casing hanger is installed for sealing, but when the wellhead temperature is too high, the hanger seal may fail. Therefore, in order to better ensure the sealing performance of the wellhead, a high temperature resistant Sealing means. Contents of the invention [0003] The purpose of the present invention is to provide a high-temperature wellhead sealing device to solve the problems in the prior art in the above-mentioned background technology, which can activate the seal when the hanger seal fails due to high temperature resistance, so as to ensure the wellhead tightness. [0004] The technical solution adopted by the present invention to solve the technical problem is: the sealing device for high temperature wellhead, including the sealing s...

Claims

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Application Information

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IPC IPC(8): F16J15/10
CPCF16J15/104
Inventor 高秋云杨定亚管伟
Owner JINHU FUYUAN MACHINERY