The purpose of this paper is to give the gravity meter credit as the main geophysical method in the discovery of the Reddell Oil Field in Evangeline Parish, Louisiana.
As in most cases, no one procedure or person is responsible for a discovery, but a culmination of several disciplines working in unison. There always must be the consideration of geology, including all known facts relative to hydrocarbon entrapment.
In late 1971, LL&E (INEXCO) asked me to model the salt structure at the Reddell Salt Dome from gravity data. The gravity data were obtained from Conoco, Inc., and tribute is given to Conoco for allowing this data to be used in this paper. I want to thank LL&E for allowing me to publish this paper and for assisting in the preparation of the maps. I also appreciate Tobin Research Inc. for letting me use its base map of the area.
The object of the study was to define the salt-dome structure so the truncation of three (3) prospective sands in the Wilcox, Lower Eocene, could be determined.
The Bouguer gravity map (Figure 1) shows the minimum anomaly from the Reddell Dome combined with the anomaly from the Pine Prairie Salt Dome. There is a distinct difference in the character of the gravity over the two domes because the Reddell Salt Dome, at the southern part of the anomaly, is 3658 m (12 000 ft) deep, and Pine Prairie Dome, at the northern part of the anomaly, is near ground surface.
The regional gravity and its removal from the Bouguer gravity are always an interpretive procedure. In more general cases, this can be approximated by using low-frequency