Novel high-pressure metal sealing component

A metal sealing, high-pressure technology, applied in sealing/isolation, wellbore/well components, earth-moving drilling, etc., can solve the problems of hidden safety hazards in the surrounding environment, erosion of gas production wellhead devices, etc., to achieve uniform force , The effect of protecting the metal seal

Inactive Publication Date: 2019-01-15
MEIZUAN SHENHAI ENERGY TECH RES & DEV SHANGHAI CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In oil field development projects, due to the high gas flow and high pressure during the drilling and production process, it is easy to cause the gas production wellhead device to be eroded, burying safety hazards for the peripheral environment

Method used

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  • Novel high-pressure metal sealing component
  • Novel high-pressure metal sealing component
  • Novel high-pressure metal sealing component

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Embodiment Construction

[0015] The present invention will be further described below through specific embodiments in conjunction with the accompanying drawings. These embodiments are only used to illustrate the present invention, and are not intended to limit the protection scope of the present invention.

[0016] Such as figure 1 As shown, the present invention provides a new type of high-pressure metal seal assembly, which is installed in a high-pressure gas production wellhead device; the metal seal assembly includes: a metal seal 11; a sealing pressure ring 12 arranged above the metal seal 11 , and, the sealing surface protection ring 13 arranged on the side of the metal seal 11; a cavity is left above the sealing pressure ring 12, which is used to compress the sealing pressure ring 12 by pressing into the cavity.

[0017] The sealing pressure ring 12 is fixed by a top wire 14 . The sealing surface protection ring 13 is fixed by a shear pin 15 . The sealing pressure ring 12 is made of metal or ...

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Abstract

The invention discloses a novel high-pressure metal sealing component. The metal sealing component is mounted on a high-pressure gas recovery wellhead device, and comprises a metal seal, a sealing pressure ring arranged on the upper side of the metal seal, and a sealing surface guard ring arranged on the side face of the metal seal; a cavity is reserved in the upper side of the sealing pressure ring, and the pressure is applied into the cavity to press the sealing pressure ring. The novel high-pressure metal sealing component has the advantages that the sealing pressure ring is designed separately, compression in the axial direction is achieved through pressure application, and the stress is uniform; the sealing surface guard ring is designed to protect the metal seal in the descending process of the metal seal.

Description

technical field [0001] The invention relates to oil exploitation equipment, in particular to a new type of high-pressure metal sealing assembly. Background technique [0002] With the continuous advancement of various resource development work in our country, related technologies and equipment are also constantly upgraded, and have begun to adapt to the requirements of modern industrial development. In oil field development projects, due to the high gas flow and high pressure during the drilling and production process, it is easy to cause the gas production wellhead device to be eroded, burying safety hazards to the peripheral environment. Therefore, it is necessary to carry out special development for high-pressure gas production wellhead devices. The high-pressure gas production wellhead device is a kind of equipment used under special working conditions, and it is more common in the development projects of oil and gas resources. As the core component of the wellhead, th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B33/03
CPCE21B33/03
Inventor 李军任国庆王仕梁
Owner MEIZUAN SHENHAI ENERGY TECH RES & DEV SHANGHAI CO LTD
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