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Title: There Is A Place For Grouting In Underground Storage Caverns
Author: T. Lenahan
Source: American Gas Association 1972
Year Published: 1972
Abstract: Over the past 20 years, several pipelines companies have utilized underground mined caverns for storage of large volumes of liquefied petroleum gases. For economic reasons, the caverns are mined large enough to hold several hundred thousand barrels of the product. The caverns are located using stratigraphic and lithologic studies in order to place them in impermeable formations. Even with this preparation, it is almost impossible to have an entire cavern in the impermeable formation due to the size involved. Since the rock is not completely impermeable, the depth of the cavern is critical. Sufficient pressure must be maintained On the petroleum gas to keep it in a liquid slate, so the hydrostatic head of the ground water is utilized to maintain this pressure. Therefore, the cavern must be sufficiently below the water table to provide the required pressure on the product.

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