Combined loading expansion test device for entity expansion pipe

Abstract

The invention relates to a combined loading expansion test device for an entity expansion pipe, comprising a loading frame, an expansion test system, an expansion clamping system and a sensor system, wherein the expansion test system is fixed on the loading frame, and one side of the loading frame is provided with the expansion clamping system. The invention has simple and reliable structure, cansupply axial controllable mechanical tensile load of 0-2000kN and hydraulic pressure of 0-80Mpa, can realize the mechanical tensile expansion or hydraulic expansion or mechanical tensile and hydraulic pressure composite expansion test for the entity expansion whole pipe, can measure the displacement, the tensile load and the hydraulic pressure in an expansion test process and the radial deformation data of the entity expansion pipe in real time, can satisfy the expansion test of various sizes of entity expansion whole pipes or entity expansion pipe connecting structures, effectively avoids horizontal destabilization in a test process and provides an effective test device for detecting expansion performance, evaluating a research, improving the whole pipe structure and optimizing an expansion technology for the entity expansion pipe.

Description

technical field [0001] The invention relates to the technical field of solid expansion tubes in the petroleum and natural gas industry, in particular to a device for evaluating the expansion performance of solid expansion tubes, which is used to perform multiple composite loading methods on solid expansion tubes by simulating field conditions in a laboratory Expansion test research can also be used to develop expansion pipes and supporting tools. 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. I...

AI Technical Summary

Problems solved by technology

The expansion tube products developed in China are only based on the requirements of the expansion process. After the tube body and the expansion tool are assembled, the relevant physical performance tests such as internal pressure and sealing are carried out on the ground, and there is no device for the expansion performance test of the physical expansion tube. , cannot ensure the safety and reliability of the expandable pipe body in the underground service process, and is not conducive to the quality control of the physical expandable pipe product, which is also an important gap between domestic expandable pipe technology and similar foreign technologies

Images