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中文摘要：
国际上公认盐岩体是地下能源（石油、天然气）储存最理想的介质，作为储气库的盐岩溶腔，一般都是根据设计要求通过水溶开采形成。目前，国内外鲜见利用地下废弃盐岩溶腔作为天然气储气库的先例。通过对ABAQUS有限元的二次开发，对某废弃盐岩溶腔的储气库围岩和岩柱的蠕变变形规律及腔顶蠕变损伤区的范围进行数值模拟，并对废弃溶腔作为储气库时的工作压力和储库套管鞋高度设计作了有益的探讨，这对指导工程实践具有一定的指导意义。
英文摘要：
Salt rock is considered as a perfect medium for underground oil and gas storage. Normally, underground salt caverns for gas storage are formed by aqueous fusion method according to specific design. Presently, there is no underground natural gas storages operation in abandoned salt caverns in the world. Based on numerical results with finite element method（FEM） code ABAQUS, the creep behaviors of caverns and rock pillars and the range of creep damage of the cavern roof are approached. Furthermore, the working pressure for gas storage in abandoned salt caverns and location of casing shoes are discussed. The conclusions drawn from the study can provide useful reference to the practical engineering.
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