Method to enhance subsurface gas storage in salt caverns
AssigneeSaudi Arabian Oil Company
InventorsRajesh Goteti, Hasmukh A. Patel
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Abstract
The present disclosure is directed toward a system and a method for storing gas. The system for storing gas comprises a salt formation, an overburden, an underburden, a salt cavern within the salt formation, a sorbent within the salt cavern, and a well traversing the surface that connects the surface with the salt cavern. The method for storing gas comprises several steps. A dissolving fluid comprising water is injected into a salt formation to produce a brine and a salt cavern within the salt formation. The brine is then removed from the salt cavern. A sorbent is then placed within the salt cavern before gas is injected into the salt cavern.
Claims15
A system for subterranean gas storage comprising:
- a well traversing a surface, an overburden, and a salt formation, the well connecting the surface with a salt cavern located within the salt formation,
- wherein the overburden is proximal to the surface and adjacent to the salt formation,
- wherein the salt formation is adjacent to an underburden that is distal to the overburden, and
- wherein a microporous sorbent is disposed within the salt cavern.
A method for storing gas comprising:
- injecting a dissolving fluid comprising water into a salt formation, producing a salt cavern within the salt formation and a brine;
- removing the brine from the salt cavern;
- placing a microporous sorbent within the salt cavern;
- and
- inserting gas into the salt cavern.
Dependencies are inferred from the claim text.