Geo-Science Related Aspects of Geopressure Energy

by Prem S. Chopra, Program Mgr.; Environment Energy Systems, Argonne National Lab., Argonne, Ill.,
Surendra K. Saxena, (M.ASCE), Assoc. Prof. of Civ. Engrg.; Illinois Inst. of Tech., Chicago, Ill.,

Serial Information: Journal of the Energy Division, 1979, Vol. 105, Issue 2, Pg. 213-228

Document Type: Journal Paper


Geo-science related aspects of geopressure energy have been critically reviewed. Geopressure is defined as any pressure that exceeds the hydrostatic column of water extending from the reservoir zone to the land surface. The U.S. Geological Survey estimates that the thermal-mechanical energy in geopressure reservoirs in the Texas and Louisiana coasts alone is about 34,000 MW-centuries. This paper has attempted to cover reservoir geology, reservoir chemistry, and environmental consequences and ways to handle them. The importance of geology, geomechanics, and geochemistry and their synergy in exploitation strategy has been highlighted. The need for new analytical models covering the response of the geomass, consisting of rock matrix and sediment clay, and its intercoupling with the motion of the geofluids in the presence of terrestrial heat flow is stressed. The effect of reservoir geometry in the selection of reservoir well spacing has been discussed.

Subject Headings: Reservoirs | Soil analysis | Sediment transport | Heat flow | Hydrostatics | Columns | Water pressure | Geological surveys | United States | Texas | Louisiana

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