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US 2016/0355344 A1Published application
Cavern pressure management
AssigneeAir Liquide Large Industries U.S. LP
InventorRonald STRYBOS
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Abstract
A cavern pressure control method includes storing compressible and possibly incompressible fluids in an underground storage volume, removing a portion or introducing additional incompressible fluid into the underground storage volume, possibly removing a portion or introducing additional compressible fluid into the underground storage volume, thereby producing a net pressure decrease rate (Pdec) within the underground storage volume, wherein Pdec is maintained at less than a predetermined maximum decrease value (PDmax).
Claims7
A method of pressure management in an underground storage volume, comprising:
- storing a compressible fluid in an underground storage volume,
- storing an incompressible fluid in said underground storage volume,
- and performing one of the following:
- removing a portion of said compressible fluid from said underground storage volume, thereby producing a net pressure decrease rate (Pdec) within said underground storage volume,
- removing a portion of said compressible fluid from said underground storage volume, and concurrently, introducing additional incompressible fluid into said underground storage volume, thereby producing a net pressure decrease rate (Pdec) within said underground storage volume,
- introducing additional compressible fluid into said underground storage volume, and concurrently, removing a portion of said incompressible fluid from said underground storage volume, producing a net pressure decrease rate (Pdec) within said underground storage volume,
- wherein Pdec is maintained at less than a predetermined maximum decrease value (PDmax).
4 more elements
Dependencies are inferred from the claim text.