Method and device for determining upper and lower limit pressure of salt cavern gas storage and electronic equipment

Abstract

This manual provides methods, apparatus, and electronic equipment for determining the upper and lower pressure limits of a salt cavern gas storage facility. First, according to pre-defined experimental testing rules, the property parameters of the rock mass sample for the salt cavern gas storage facility are measured. Based on the property parameters of the rock mass sample, the dissipation energy and critical loss energy under compression conditions, and the elastic strain energy and critical failure energy under tension conditions of the rock mass are determined. According to pre-defined rock mass strength rules, the stress relationship of the rock mass sample is constructed. Based on a pre-defined damage mechanics model, using the property parameters of the rock mass sample, the damage dissipation energy of the rock mass for the salt cavern gas storage facility is determined. Based on a pre-defined energy dissipation model, the upper pressure limit of the salt cavern gas storage facility is determined by utilizing the dissipation energy, critical loss energy, and stress relationship under compression conditions. Based on a pre-defined energy balance model, the lower pressure limit of the salt cavern gas storage facility is determined by utilizing the elastic strain energy, critical failure energy, and damage dissipation energy under tension conditions.

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