Telescopic wellhead connecting device

A connecting device and telescopic technology, which is applied in the direction of wellbore/well components, earthwork drilling, sealing/isolation, etc., which can solve the potential risk of increasing equipment operation, non-adjustable rigid pipeline length, inability to connect interface and installation error compensation To reduce potential risks, facilitate on-site installation, and ensure sealing performance

Inactive Publication Date: 2022-03-25
SHIFANG HUIFENG OIL PROD MASCH CO LTD
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the deficiencies of the existing technology, the present invention provides a telescopic wellhead connection device to solve the problem that the length of the existing rigid pipeline cannot be adjusted, and the error caused by the connection interface and installation cannot be compensated, which increases the potential risk of equipment operation

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
  • Telescopic wellhead connecting device
  • Telescopic wellhead connecting device
  • Telescopic wellhead connecting device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0046] In the following, only some exemplary embodiments are briefly described. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. Accordingly, the drawings and descriptions are to be regarded as illustrative in nature and not restrictive.

[0047] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " Vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. The orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must hav...

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 relates to the technical field of petroleum and natural gas extraction, and provides a telescopic wellhead connecting device which comprises a fixed pipe barrel, a telescopic pipe barrel and a locking mechanism used for locking the telescopic pipe barrel, the outer circle face of one end of the fixed pipe barrel is provided with external threads, the inner side wall of the fixed pipe barrel is provided with a conical face, and one end of the telescopic pipe barrel is in sliding and sealing connection with the inner side wall of the fixed pipe barrel; the locking mechanism comprises a locking nut and at least two arc-shaped slips, the locking nut is in threaded connection with the external threads and is connected with the arc-shaped slips in a clamped mode, the arc-shaped slips surround the outer circle face of the telescopic pipe barrel, and the outer wall of each arc-shaped slips is provided with an oblique conical face attached to the conical face. The length of the whole connecting pipe is adjusted through stretching and retracting of the telescopic pipe barrel in the fixed pipe barrel, the arc-shaped slips are pushed to lock the telescopic pipe barrel in the radial direction by means of the axial tightening process of the locking nut, free adjustment of the length of the connecting pipe is achieved, and therefore effective compensation can be carried out on a connecting port and installation errors; potential risks during equipment operation are greatly reduced, and on-site installation is facilitated.

Description

technical field [0001] The invention relates to the technical field of petroleum and natural gas exploitation, in particular to a telescopic wellhead connection device used for the connection of petroleum and natural gas exploitation equipment. Background technique [0002] At present, when oil (gas) production wellhead devices, choke and kill manifolds, casing heads and other equipment are connected to external pipelines or equipment, they are generally connected by rigid pipelines, whose length cannot be adjusted, and the errors caused by the connection interface and installation cannot be corrected. Compensation increases the potential risk of equipment operation, and it is very inconvenient to install on site. Contents of the invention [0003] Aiming at the deficiencies of the existing technology, the present invention provides a telescopic wellhead connection device to solve the problem that the length of the existing rigid pipeline cannot be adjusted, and the error ...

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): E21B33/03
CPCE21B33/03
Inventor 刘波王斌张茂权唐小华包建华李克诚汪立鑫叶伟谢强张炬东
Owner SHIFANG HUIFENG OIL PROD MASCH CO LTD
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