Flow Field Ecological Simulation of Bedded Salt Rock Gas Storage

The aim of this study was to ecologically analyze the flow field and fluid pressure on the interlayer in the construction of salt-cavern gas storage in terms of terrestrial ecology. With the help of CFD software Fluent, the cavity numerical models in different working environments had been built and the influence of water injection rate, height of the central tube and inter-medium tube, height and length of interlayer had been analyzed. The results show that the existence of interlayer breaks up the continuity of cavity boundary and causes many ecological eddies in the storage, and the changes of factors have a great impact on the strength and scope of eddy in the small space of environment. The fluid pressure on the upper surface of interlayer is significantly less than the fluid pressure on the lower surface in most cases while the pressure equal to each other when the inter-medium tube goes down, so that it can be slump the interlayer easily through reducing the height of the inter-medium tube.