An investigation into design concepts, design methods and stability criteria of salt caverns

چکیده مقاله

One of most important properties of rock salt is deformability. These days, salt layers and domes are used to storing Hydrocarbons and disposing nuclear wastes. Rock mechanical stability is one of important stages in salt cavern’s design and construction, though mechanical factors (nonlinear behaviour of rock salt), thermal factors (temperature changes during injection and production) and hydraulic factors (salt permeability and viscosity of stored material) affect on short term and long term behaviour of salt cavern. Various criteria and methods have been investigated for salt cavern’s design and stability analysis. In this paper, first, the parameters is introduced of which have influence on short term and long term behaviour of salt cavern. In second section, studies of salt cavern behaviour which have been done by authors are given.  In third section, salt design’s criteria and methods, also their development process are discussed. Criteria of stability investigation, their advantages and disadvantages are discussed in last section. It is assigned that the stability criterion of De Vries et al (2005) is more comprehensive than others.

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