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Grand Bay Reservoir Characterization – The Good, the Bad and the Ugly

Andy Clifford and Robert Monahan
[email protected]

Grand Bay Field, located in Plaquemines Parish, close to the mouth of the modern day Mississippi Delta, has produced over 250 million barrels of oil equivalent since it was discovered by Gulf Oil in 1937 from 65 stacked Miocene reservoir sands between 1,500 feet to 13,500 feet. This study will look at log, petrophysical and seismic definition of several of these reservoirs, comparing production history and decline analysis from some of the more laterally-extensive reservoirs and bigger contributors with some of the less areally-extensive and smaller contributors. We will also look at historical development of the field over the course of over 70 years, the impact of 3D seismic acquisition over the field, application of technology and discuss remaining infill development drilling potential and development economics.

AAPG Search and Discovery Article #90167©2013 GCAGS and GCSSEPM 63rd Annual Convention, New Orleans, Louisiana, October 6-8, 2013