Hydraulic and earth engineering – Fluid control – treatment – or containment – Fluid storage in earthen cavity
Patent
1992-07-29
1993-05-04
Taylor, Dennis L.
Hydraulic and earth engineering
Fluid control, treatment, or containment
Fluid storage in earthen cavity
405 55, 405128, B65G 500
Patent
active
052075303
ABSTRACT:
An underground compressed natural gas ("CNG") storage and service system is disclosed. The system includes a plurality of underground storage containers, a compressor for compressing natural gas, and first conduit means for conducting CNG from the compressor to the storage containers and from the storage containers to a vehicle or other location. In one embodiment, each storage container is an elongated (e.g., 100 feet) string of conventional oil field casing sealed at both ends and positioned in a borehole drilled into the earth. A reinforcing concrete sheath surrounds the casing. A siphon line is disposed within the casing for removing contaminating material that accumulates therein.
Also provided is a method of installing an underground CNG storage apparatus having a predetermined gas volume capacity.
REFERENCES:
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patent: 4117684 (1978-10-01), Hendrix
patent: 4592677 (1986-06-01), Washer
patent: 4805674 (1989-02-01), Knowlton
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Page entitled "ASME Pressure Vessel Assemblies Provide Fast Fill Capability" copied from a brochure published by CPI, Inc.
Brooks Gregory L.
Fullerton Allan B.
Morris Raymond L.
Zimmer Larry W.
Halliburton Company
McBee J. Russell
Taylor Dennis L.
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