Drilling in the northern Gulf of Mexico continues at an impressive pace since its prospectivity continues to expand as greater depths are reached by the drilling technology. New Wilcox and Norphlet discoveries at 30,000+ depths are a frontier in exploration. Granted the discoveries are well above basement structure, but the statistics prove the basement structure has influences on the placement. Today seventy (70) percent of published oil/gas discoveries in the deepwater Gulf of Mexico correlate to basement structural highs or faults. This indicates the predictive value of basement studies
It ... Read More
Louisiana Shelf: Timbalier Bay and Bay Marchand Salt Domes
The configuration of the salt domes had come into question by the client. The directive given to IGC was to determine the possibility and extent of the salt overhang.
Several publications were available on the Bay Marchand and Timbalier Bay salt domes. All publications described the as deep seated salt domes. The top of salt was defined by approximately 320 well penetrations. Only 1 well with a base of salt occurs on Bay Marchand Dome. High amplitude gravity minima are associated to the two salt domes which is generally considered indicative of deep seated attached salt domes.
However the ... Read More
A regional interpretation of western Offshore Gabon was based on an IGC interpretation of satellite-derived gravity data offshore and a compilation of published data offshore and onshore. The Regional Geologic Features map featured in this report shows a series of basins and high blocks trending sub parallel to and subnormal to the coastline. Numerous fault/fracture zones extend northeast from oceanic crust areas of the South Atlantic onto the offshore shelf and the onshore coastal areas of Gabon. One major fault/fracture zone, the N’Komi, divides coastal Gabon into two main structural provi... Read More