Application of Set Pair Analysis Method Based on Entropy Weight to the Stability Evaluation of Salt Rock Gas Storage

doi:10.12068/j.issn.1005-3026.2017.02.027

Abstract

Abstract: To establish a stability evaluation system， the mechanical parameters of salt rocks， cavity parameters of gas caverns， and operation parameters of gas caverns were considered. Combining each evaluation index’s weight with its connection degree based on the entropy and set pair analysis， respectively， the stability levels of gas caverns were determined. The results were consistent with those of the grey correlation analysis， proving that the set pair analysis method applied in the stability evaluation of gas storage is scientific and feasible. The evaluation by the set pair analysis method， which reflects the stability situation more objectively， can not only avoid the outcome disparity due to the uncertainty of distinguishing coefficients， but also obtain the stability level of gas storage， which provides more detailed information for project practices.

Key words: salt rock gas storage, stability evaluation system, entropy, set pair analysis, grey correlation analysis

CLC Number:

TD31

JIANG De-yi， PENG Hui-hua， ZHAO Li-jun， LIU Chun. Application of Set Pair Analysis Method Based on Entropy Weight to the Stability Evaluation of Salt Rock Gas Storage[J]. Journal of Northeastern University Natural Science, 2017, 38(2): 284-289.

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