A kind of solid expansion tube bending expansion test method under load

A technology of expansion test and bending test, which is applied in the directions of testing material strength by applying stable bending force, testing material strength by applying stable tension/pressure, instruments, etc. Full-scale evaluation test and other issues, to achieve the effect of simple and reliable device structure

Active Publication Date: 2019-04-26
中国石油集团石油管工程技术研究院 +1
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a load-bearing bending expansion test method for solid expansion pipes, which is used to overcome the problems caused by the tortuosity of the well wall or the large-arc deflection section of the horizonta

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
  • A kind of solid expansion tube bending expansion test method under load
  • A kind of solid expansion tube bending expansion test method under load
  • A kind of solid expansion tube bending expansion test method under load

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0029] The present invention will be described in detail below in conjunction with the drawings and embodiments.

[0030] The solid expansion pipe load bending expansion test device provided in the embodiment is composed of a loading frame and a bending test platform.

[0031] Such as figure 1 As shown, the loading frame adopts a horizontal structure, which is composed of hydraulic cylinder 1, main frame 6 and frame bracket 7. The main frame 6 adopts a steel welded structure and has a rectangular design. For the test platform, the frame material is annealed to meet the maximum load of 2000KN. Connected to the hydraulic cylinder 1 on the right side of the main frame 6 is the piston rod 3. The piston rod 3 is connected with the tensile chuck 5, which is used to connect the expansion tube for testing and apply axial load. The chuck fixing frame 4 and the main frame 6 Connected to support the tension chuck 5. A reaction force frame 11 is designed on the left side of the main frame 6,...

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 solid expansion pipes in the petroleum natural gas industry, in particular to a load based bending and expansion testing method of a solid expansion pipe, and aims at overcoming the defects in the prior art that the expansion pipe under a bending state cannot be subjected to full-size evaluation rest, and the safety and reliability of the expansion pipe body under underground service are low. The method is characterized in that the height of a plurality of v-shaped rolling shafts on a bearing rack is adjusted according to the bending curvature to be achieved; the tested expansion pipe passes through a floating sleeve on the bearing rack, then sequentially passes through the adjusted v-shaped rolling shafts and finally arrive at a fixing pressing plate; the tested expansion pipe is pressed through the fixing pressing plate; an expansion cone is mounted into the tested expansion pipe, and plugs are welded at two ends of the expansion pipe; during performing of an non-axial-load expansion test, hydraulic water is directly poured at one end of each plug with the cone through a high-pressure water pouring pipe so as to push the expansion cones to finish the expansion test process.

Description

technical field [0001] The invention relates to the technical field of solid expansion pipes in the oil and gas industry, in particular to a load-bearing bending expansion test method for solid expansion pipes. Background technique [0002] Solid Expandable Tubular SET (Solid Expandable Tubular) technology is a new drilling, completion and workover technology that radially expands the casing string to the required diameter in the wellbore for the purpose of "saving" the borehole size . The application of this technology can increase the number of casing layers to be lowered, bringing "revolutionary" impact and significant technical and economic benefits to deep wells, drilling and wellbore structures with complex geological conditions. It can make the wellbore "thin" and significantly reduce the development cost. It makes "single diameter" possible. [0003] The solid expansion tube technology has been developed and applied very rapidly all over the world. The solid expan...

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
IPC IPC(8): G01N3/20G01N3/12
CPCG01N3/12G01N3/20G01N2203/0048
Inventor 刘强宋生印冯耀荣李德君吕能武刚
Owner 中国石油集团石油管工程技术研究院
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