Alternating pressure energy storage wellbore scale test device and design method thereof
By designing a scaled-down wellbore test device and mechanical analysis methods, the problems of difficult wellbore interface monitoring and theoretical deficiencies in traditional experiments were solved, enabling efficient assessment of wellbore integrity, simplifying operation, and improving the reliability and accuracy of the experiment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- CHINA PETROLEUM & CHEMICAL CORP
- Filing Date
- 2024-12-10
- Publication Date
- 2026-06-12
AI Technical Summary
Traditional triaxial compression tests make it difficult to monitor the wellbore interface in real time, and scaled-down model experiments lack a theoretical basis, resulting in discrepancies between integrity study results and actual wellbore conditions. Furthermore, full-scale devices occupy a large area and are complex to operate.
An alternating pressure energy storage wellbore scaling test device was designed, including a simulated wellbore, a clamping device, and an integrity monitoring system. The stress expression and parameters of the scaling model were determined through mechanical analysis, and the internal pressure, confining pressure, and cement sheath thickness of the wellbore were calculated. Experimental simulation was carried out in conjunction with the wellbore internal flow pressure control and confining pressure control system.
It enables real-time monitoring of the wellbore interface, simplifies the operation process, improves the reliability of experiments and the accuracy of data, enhances the assessment of cement sheath integrity, and reduces equipment costs and floor space requirements.
Smart Images
Figure CN122192969A_ABST