Geothermal caprock multi-factor coupling comprehensive evaluation method

By constructing a multi-factor coupling model, the problem of neglecting the correlation between factors in traditional geothermal cap layer evaluation methods is solved, realizing the stability and reliability evaluation of geothermal cap layers and providing a reliable basis for the development of medium-deep geothermal resources.

CN122198334APending Publication Date: 2026-06-12INST OF GEOMECHANICS
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
INST OF GEOMECHANICS
Filing Date
2026-03-06
Publication Date
2026-06-12

AI Technical Summary

Technical Problem

Traditional geothermal cap evaluation methods fail to effectively consider the complex nonlinear coupling and dynamic feedback mechanisms among multiple geological subsystems, such as lithology-diagenesis-physical properties, tectonic-mechanical integrity, thickness-lateral continuity, and fluid-pressure-temperature field. This results in evaluation results being out of sync with actual geological conditions and failing to provide a reliable basis for the long-term development of medium-deep geothermal resources.

Method used

A coupled model was constructed, comprising four subsystems: lithology-diagenesis-physical properties, structure-mechanics-integrity, thickness-continuity, and fluid-pressure-temperature. Dynamic feedback between the subsystems was achieved through the coupling matrix, and the final comprehensive evaluation result was obtained by using an iterative correction calculation method.

Benefits of technology

It enables the evaluation of the stability and reliability of the geothermal cap layer, and can comprehensively consider the interaction between different geological factors, providing a reliable basis for resource evaluation and engineering decision-making.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN122198334A_ABST
    Figure CN122198334A_ABST
Patent Text Reader

Abstract

The present application relates to geothermal resource exploration technical field, especially to a kind of geothermal cap rock multi-factor coupling comprehensive evaluation method.The method includes the following steps: obtaining the basic data of geothermal cap rock, and respectively calculating each single factor evaluation score;Establish multi-factor coupling relationship quantification model, and calculate the initial score of each subsystem based on coupling relationship quantification model;Coupling matrix between subsystems is constructed, and the initial score of the subsystem is iteratively corrected based on the matrix to obtain the final subsystem score;The final subsystem score is weighted calculated to obtain the total score of geothermal cap rock comprehensive evaluation.The present application reduces the evaluation deviation caused by the interaction between subsystems through the iterative correction mechanism of coupling matrix, and can significantly improve the reliability and efficiency of geothermal cap rock multi-factor coupling comprehensive evaluation.
Need to check novelty before this filing date? Find Prior Art