Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Metal wrapped-type high-temperature sealing structure and manufacturing method thereof

A technology of high-temperature sealing and manufacturing method, which is applied in the directions of sealing/isolation, earth-moving drilling, wellbore/well components, etc. Effects of reduced heat loss, avoided setting tonnage, and reliable sealing performance

Inactive Publication Date: 2012-06-20
PETROCHINA CO LTD
View PDF8 Cites 15 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Due to the steam flooding packer, during the field use, the seal is damaged due to friction with the dead oil on the well wall and the pipe string creeps during the steam injection process, resulting in wear and gas erosion of the seal. Since the conventional high-temperature seal has no external protection , during the process of running the pipe string into the wellbore, the seal is easily blocked and scratched by the solidified ultra-heavy oil on the casing wall, thus affecting its sealing effect
With the increase of steam injection time, in the long-term high-temperature and high-pressure environment, due to the occurrence of problems such as weakened internal support and serious carbonization of the seal, it cannot maintain its durable and reliable sealing performance; due to the relatively low erosion resistance of conventional seals Poor, can not meet the actual production needs of long-term steam injection and intermittent steam injection

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Metal wrapped-type high-temperature sealing structure and manufacturing method thereof
  • Metal wrapped-type high-temperature sealing structure and manufacturing method thereof
  • Metal wrapped-type high-temperature sealing structure and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] A metal-wrapped high-temperature sealing structure of the present invention is composed of at least two metal-wrapped protective structures and a sealing member arranged between the metal-wrapped protective structures, and the metal-wrapped protective structure includes a metal-wrapped protective structure layer and an inner filling ring; the metal wrapping layer forms a metal bowl-shaped collar, the metal bowl-shaped collar has an inward opening, the metal wrapping layer wraps the inner filling ring, and the metal wrapping protective structure can prevent Both sides of the sealing member are raised, and are resistant to friction and water erosion.

[0027] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described with reference to the accompanying drawings.

[0028] Please refer to Figure 1 to Figure 4 Shown is a three-dimensiona...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses a metal wrapped-type high-temperature sealing structure and a manufacturing method thereof, wherein the metal wrapped-type high-temperature sealing structure is composed of at least two metal wrapped-type protection structures and a sealing element in an overlapping mode, wherein the sealing element is arranged between the metal wrapped-type protection structures; each metal wrapped-type protection structure comprises a metal wrapped layer and an internal filling ring; each metal wrapped layer is provided with a metal bowl-shaped sleeve ring which is provided with an inward opening; the metal wrapped layers wrap the internal filling rings; and the metal wrapped-type protection structures can prevent both sides of the sealing element from raising up and are resistant against abrasion and water flow erosion.

Description

technical field [0001] The invention relates to a sealing structure, in particular to a metal-wrapped high-temperature sealing structure capable of effectively preventing both sides of the sealing member from protruding, and resistant to friction and water erosion, and a manufacturing method thereof. Background technique [0002] Due to the steam flooding packer, during the field use, the seal is damaged due to friction with the dead oil on the well wall and the pipe string creeps during the steam injection process, resulting in wear and gas erosion of the seal. Since the conventional high-temperature seal has no external protection , during the process of running the pipe string into the wellbore, the seal is easily blocked and scratched by the solidified ultra-heavy oil on the casing wall, thus affecting its sealing effect. With the increase of steam injection time, in the long-term high-temperature and high-pressure environment, due to the occurrence of problems such as w...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): E21B33/12B21D39/00B21D22/00
Inventor 关仲杨冬梅何传兴张洪宝魏凯刘祖合杨忠德于雷顾辉林丽娜
Owner PETROCHINA CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products