›› 2011, Vol. 32 ›› Issue (5): 1465-1472.

• Geotechnical Engineering • Previous Articles     Next Articles

Evaluating stability of salt rock gas storage during operation period

REN Song1, 2, LI Xiao-yong1, JIANG De-yi1, WANG Xin-sheng2, YANG Chun-he1, 3   

  1. 1. Key Laboratory for the Exploitation of Southwestern Resources & the Environmental Disaster Control Engineering, Ministry of Education, Chongqing University, Chongqing 400044, China; 2. Chongqing Survey Institute, Chongqing 400020, China; 3. State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China
  • Received:2010-09-20 Online:2011-05-10 Published:2011-09-23

Abstract: Based on the features of Chinese salt rock bed, the comprehensive evaluation system of the stability of rock salt gas storage with multilevel and multi-index has been set up; and the assessment class level of the stability of rock salt gas storage during the operation period also has been defined. According to the test data and the result of numerical simulating, the scoring models of evaluation indices are built and the value of the corresponding evaluation indices for every assessment class is got. The weight of the describing layer and the index layer has been obtained by analytic hierarchy process. Both the extension evaluation and the fuzzy comprehensive evaluation have been used to evaluate the stability of Jintan Xi-1 salt rock gas storage of the West-to-East Natural Gas Transmission Project. And the results of the two above methods are consistent, just like the real situation, which show that it is of great worth to set up the comprehensive evaluation system of the stability of rock salt gas storage with multilevel and multi-index

Key words: rock salt gas storage, stability, evaluation system, extension evaluation, fuzzy comprehensive evaluation

CLC Number: 

  • TU 354
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