High-temperature-resistant heat-insulation blowout preventer

A blowout preventer, high temperature resistant technology, used in isolation devices, sealing/packing, wellbore/well components, etc., can solve the problems of high cost, long cycle, can not meet high temperature wellhead operating conditions, etc., to ensure reliability , the effect of reliable work

Pending Publication Date: 2021-08-10
CHINA OILFIELD SERVICES
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In recent years, the operation volume of high-temperature, ultra-high-temperature wells and heavy oil thermal recovery wells has been increasing, and the wellhead temperature has reached above 200°C, even as high as 350°C. Wellhead operating conditions, suspending production by killing the well, and then performing workover and testing operations have a long cycle and high cost

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
  • High-temperature-resistant heat-insulation blowout preventer
  • High-temperature-resistant heat-insulation blowout preventer
  • High-temperature-resistant heat-insulation blowout preventer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] In order to make the purpose, technical solution and advantages of the application clearer, the embodiments of the application will be described in detail below in conjunction with the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined arbitrarily with each other.

[0025] In the existing blowout preventer, compression structures are arranged at the upper and lower ends of the sealing structure, one of the compression structures is mainly used to cover the sealing structure, and the other compression structure is used for compression. This dual-channel form is easily affected by the high-temperature oil in the well, and the working method is unreliable, and it cannot withstand the high temperature of the wellhead exceeding 200°C. The high temperature will cause damage to the well control equipment and easily cause burns to the operators.

[0026] The e...

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

No PUM Login to view more

Abstract

The invention discloses a high-temperature-resistant heat-insulation blowout preventer. The high-temperature-resistant heat-insulation blowout preventer comprises a tubular column base body, a cylinder sleeve, a pressing piece, a rubber core and a cooling device; the cylinder sleeve, the pressing piece and the rubber core are all installed in the tubular column base body, and a hydraulic control channel of the cylinder sleeve is located above the rubber core; the cylinder sleeve can move in the tubular column base body in the axial direction and abut against the pressing piece, so that the rubber core is pressed and sealed by the pressing piece; a containing cavity is formed in the abutting end of the cylinder sleeve, and when the cylinder sleeve abuts against the pressing piece, the pressing piece and the rubber core are located in the containing cavity; and the cooling device is used for cooling the rubber core. The high-temperature-resistant heat-insulation blowout preventer can reliably work under the high-temperature condition, and normal operation of well control equipment is guaranteed.

Description

technical field [0001] This application relates to but not limited to wellhead heat insulation technology, especially a high temperature resistant heat insulation blowout preventer. Background technique [0002] In recent years, the operation volume of high-temperature, ultra-high-temperature wells and heavy oil thermal recovery wells has been increasing, and the wellhead temperature has reached above 200°C, even as high as 350°C. Due to the wellhead operating conditions, the production cycle is long and the cost is high by suspending production by killing the well and then performing workover and testing. Contents of the invention [0003] The embodiment of the present application provides a high temperature resistant heat insulation blowout prevention device, which can work reliably under high temperature conditions and ensure the normal operation of well control equipment. [0004] The embodiment of the present application provides a high temperature resistant heat ins...

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): E21B36/00E21B33/06
CPCE21B36/003E21B33/06E21B36/001
Inventor 孙永涛费春辉王景浩李敬松赵永顺林涛汪成
Owner CHINA OILFIELD SERVICES
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap