Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Enhanced gas recovery from geopressured aquifers

Conference · · Soc. Pet. Eng. AIME, Pap.; (United States)
OSTI ID:6635127
Along the Gulf Coast of the U.S., geopressured aquifers occur which contain natural gas and water. Natural gas may exist in geopressured aquifers as a continuous gas phase, as gas dissolved in the aquifer water, or as a dispersed gas phase (residual gas). The aquifers exist at pressures great enough to flow water to the surface of the ground in artesian fashion, and some commercial gas reservoirs are found in them. Where the characteristics of the formation containing the aquifer will permit the production of large quantities of water, it may be possible to produce with the water, gas of all the 3 types described. In the case of a watered-out geopressured gas reservoir, solution gas is produced with the water. In response to reduction in the aquifer pressure, residual gas expansion also increases pore volume saturation and results in gas mobility. Gas cap or attic gas not recovered during conventional production may be coned into a well as pressure is reduced in the aquifer, if the current gas/water contact is sufficiently close to the well. (14 refs.)
Research Organization:
Transco Energy Co
OSTI ID:
6635127
Report Number(s):
CONF-781003-
Conference Information:
Journal Name: Soc. Pet. Eng. AIME, Pap.; (United States) Journal Volume: SPE-7541
Country of Publication:
United States
Language:
English