Supercharge Your Innovation With Domain-Expert AI Agents!

Downhole rod pipe fixing device

A technology for fixing devices and rods and tubes, which is applied in wellbore/well parts, earthwork drilling and production, etc., can solve the problems of the throat clamp device failing to achieve a stable fixing effect, the throat clamp device being unstable, and damage to the sucker rod, etc. It achieves the effects of easy on-site installation, reliable fixing effect, and prevention of falling well accidents

Inactive Publication Date: 2006-03-15
CHINA NAT OFFSHORE OIL CORP +1
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, it has been found through use that the disadvantages of the above-mentioned throat clamp device are that (1) when the screwdriver is used to tighten the screw rod of the throat clamp mechanism, it is not easy to use force when turning the screwdriver; (2) the fixing of the throat clamp device is unstable, Throat clamps often slide along sucker rods and pilot lines without achieving a stable fixation
(3) All parts of the throat clamp device are made of ferrous metal, and the hardness of the ferrous metal is greater than that of fiberglass. When the throat clamp device is used to fix the sucker rod made of fiberglass, the sucker rod may be damaged Therefore, the hose clamp device can only be used to fix the sucker rod made of steel and the hydraulic control pipeline, but not the sucker rod made of fiberglass and the hydraulic control pipeline.

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
  • Downhole rod pipe fixing device
  • Downhole rod pipe fixing device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0020] Accompanying drawing shows a kind of pipe fixing device that is used for downhole of the present invention, and it comprises first cylinder 1, the second cylinder 2 that is placed in one end of described first cylinder 1 and is placed in described first cylinder 1. The conical cylinder 3 in the tapered hole at the other end of the cylinder 1 adopts a conical compression structure in order to ensure that the rod tube fixing device of the present invention has a reliable fixing effect, that is, the inner surface of the conical hole of the first cylinder 1 is in contact with the conical hole. The taper of the outer surface of the conical cylinder 3 is guaranteed to be consistent, and the inner and outer conical contact surfaces 4 are in close contact; a gasket 5 is arranged between the second cylinder 2 and the conical cylinder 3; in order to make the seco...

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 present invention discloses a fixing device for downhole rod and pipe, including first cylinder, second cylinder mounted in one end in the first cylinder and conical cylinder mounted in another end in the first cylinder. The described conical cylinder is made up by adopting the material whose hardness is less than at GFRP, and the internal surface of the conical hole of the first cylinder and the external surface of the conical cylinder are identical in taper, so that they are tightly contacted. Between the described second cylinder and the described conical cylinder a washer is set, and the first cylinder and second cylinder are screw-connected between them, on the radial position of the first cylinder the screw is set, and on the walls of first cylinder, second cylinder, conical cylinder and washer the opening mechanisms are respectively set.

Description

technical field [0001] The invention relates to a downhole tool, in particular to a downhole fixing device. Background technique [0002] In the production well pipeline deepening fluid injection process string and capillary pressure measurement process string, it is often necessary to fix the capillary tube (or hydraulic control steel pipe) and the sucker rod together. [0003] Currently, the general product for securing the capillary to the sucker rod is a fixture called a throat clamp. The throat clamp device includes a clamping belt and a clamping mechanism; the clamping belt is similar to a belt, one end of which is fastened on the clamping mechanism, while the other end is a free end, and several parallel racks are arranged on the clamping belt Shaped convex structure; the tightening mechanism includes a screw rod, and one end of the screw rod is provided with a screwdriver port; the parts and components of the throat clamp device are all...

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 Patents(China)
IPC IPC(8): E21B23/00
Inventor 钟黎民
Owner CHINA NAT OFFSHORE OIL CORP
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com