A geological stability monitoring device for salt cavern energy storage

By constructing a multi-dimensional, full-space perception system, and combining interferometric synthetic aperture radar, global navigation satellite system, and distributed fiber optic sensors, the system achieves intelligent monitoring of the geological stability of salt cavern energy storage throughout its entire lifecycle. This solves the blind spot problem in the geological stability assessment of salt cavern energy storage systems, improves the accuracy of identifying salt rock creep and instability signs, and enhances the early warning capability, thus ensuring the safe operation of salt cavern energy storage power stations.

CN122260433APending Publication Date: 2026-06-23THE THIRD TEAM OF JIANGSU COAL GEOLOGICAL EXPLORATION
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
THE THIRD TEAM OF JIANGSU COAL GEOLOGICAL EXPLORATION
Filing Date
2026-03-12
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

Existing salt cavern energy storage geological stability monitoring systems have blind spots in spatial coverage, making it difficult to comprehensively assess factors such as geological structural changes and brine migration. They lack in-depth characterization of the overall stability of the geological structure and cannot achieve full-domain perception of the coupled deformation of the surrounding rock and the cavity, resulting in insufficient dynamic assessment and early warning capabilities for salt cavern geological risks.

Method used

A multi-dimensional, full-space sensing system is constructed by employing surface multi-source deformation sensing units, wellbore deep strain detection units, microseismic global activity monitoring units, cavity morphology and medium state sensing units, and geomechanical digital twin and evolution analysis units. Wide-area coverage is achieved through interferometric synthetic aperture radar and global navigation satellite system, local fine characterization is achieved through distributed optical fiber and microseismic array, and real-time inversion and early warning are performed in combination with digital twin technology.

Benefits of technology

It has achieved intelligent monitoring of the geological stability of salt caverns throughout the entire life cycle, reduced monitoring blind spots, improved the accuracy of identifying salt rock creep and instability signs, enhanced the ability to respond quickly to sudden geological disasters, and ensured the safe operation of salt cavern energy storage power stations.

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Abstract

The present application belongs to the technical field of geological engineering monitoring, and particularly relates to a geological stability monitoring device for salt cavern energy storage, aiming to solve the problems of single monitoring dimension, existing blind area and insufficient sensitivity in identifying creep. The monitoring device is internally provided with a geological stability monitoring system, and the system comprises: a surface multi-source deformation sensing unit, a shaft deep layer strain detection unit, a microseismic global activity monitoring unit and a cavity shape sensing unit, which are used for collecting surface and deep multi-dimensional data; a geomechanics digital twin and evolution analysis unit, which constructs a mechanics model and dynamically inverts real-time data as a constraint boundary; a stability discrimination and risk early warning scheduling unit, which outputs an evaluation report based on the inversion result and triggers an early warning. Through the deep coupling of multi-dimensional full-space perception and mechanics model, the present application effectively reduces the perception blind area and improves the accuracy of salt rock creep risk prediction, thereby providing a technical guarantee for the long-term safe operation of the salt cavern energy storage power station.
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