›› 2009, Vol. 30 ›› Issue (12): 3621-3626.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Preliminary research of risk classification for underground salt rock gas storage

JIA Chao1, ZHANG Qiang-yong1, ZHANG Ning1, LIU Jian1, LI Shu-cai1, YANG Chun-he2   

  1. 1. School of Civil and Hydraulic Engineering, Shandong University, Jinan 250061, China; 2. Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China
  • Received:2009-07-15 Online:2009-12-10 Published:2010-01-18

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Abstract:

Energy storage is greatly demand by the national strategy, so large-scale underground salt-rock gas storage constructions had been begun to build. There are many characteristics of domestic salt rock gas storage on geology, such as bedded salt rock is thin, has much interlayer, and the geology is more complex. It is difficult to build and manage it. So it is more significant to carry out researches on assessing the risk of salt rock gas strorage for the theoretical research and engineering technique. Performance-based design (PBD) method has been imported into risk analysis to classify the salt rock storage risk level in current situations. Volumetric shrinkage of the salt rock storage is regarded as individual factors on classifying the risk level. Numerical simulation is carried out to evaluate the creep of a salt rock gas storage in China on different gas pressures. Risk level under different gas pressures for different times on the storage is obtained. The results also verify that the method proposed is reasonable and valid for salt rock gas storage risk analysis.

Key words: salt rock gas storage, risk classification, performance-based design, volumetric shrinkage, gas pressure

CLC Number: 

  • TE 122.2
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