ASPECTS FOR THE DESIGN OF GAS CAVERNS IN THE BORDER REGION OF SALT DOMES-ROCK MECHANICAL CALCULATIONS
For several reasons the demand for storage capacity for natural gas has increased drastically during the last years. Existing gas cavern fields have been extended and new storage locations have been explored. In order to obtain a high degree of exploitation there is a need for creating caverns close to the boundaries of the salt formations.For the design of such caverns it is important to get sufficient knowledge of the geometry of the interface between rock salt and caprock as well as the initial conditions with respect to rock mass stresses and rock mass temperatures. Within the rock mechanical calculations these assumptions are crucial for the determination of sufficient spacing without influencing the stability or the tightness of the storage cavity.The paper describes by the way of example the situation for a salt dome cavern configuration. By three-dimensional calculation models the rock mechanical design is shown. Special focus is set on the criteria for the assessment of stability and tightness of the caverns in the boundary region of the salt formation.
rock mechanics structure of salt domes numerical analysis
Kurt Staudtmeister Dirk Zapf
Institut fur Unterirdisches Bauen (IUB)-Leibniz Universitat Hannover Welfengarten 1a, D 30167 Hannover, Germany
国际会议
9th International Symposium on Salt(第九届世界盐业大会)
北京
英文
299-315
2009-09-05（万方平台首次上网日期，不代表论文的发表时间）