Oil Exploration – Past
Oil & Gas activity already exists in The Bahamas
Historically five deep oil exploration wells have been drilled within The Bahamas, safely and without major incident. Numerous other wells have been drilled adjacent to the territorial waters.
Over the past years Bahamas Petroleum Company has accumulated all the available core samples and chippings from the Great Isaac and Doubloon Saxon wells. New petrophysics has been run and new log interpretations have been generated using modern techniques. All other regional data available has been purchased including gravity, magnetics and detailed geochemical analysis from piston core samples of the seabed. Historic 2D seismic has been reprocessed, though of limited value.
All wells shown on the section (see map) indicate the presence of hydrocarbons and many demonstrate live oil shows. The Doubloon Saxon well, where the Company has retained the drilled core sections has significant evidence of hydrocarbons, especially in the deeper section of the well below the first anhydrite unit.
Further, in this well there is good evidence of high energy oolitic limestone and fractured dolomite potential reservoir units displaying good porosity in both the logs and the recovered core samples. These units are repeatedly interbedded with anhydrite potential seal intervals. As many as 20 individual reservoir units have been identified from the Doubloon Saxon well with many as thick as 200 feet over a total gross interval of some 1,400 feet.
Logs from the wells indicate that they are normally pressured although distinct zones of lost circulation were experienced as might have been anticipated from wells drilling these lithologies. Whilst there is clear evidence of a working hydrocarbon system no wells were flowed and certainly there is no indication of any commercially viable accumulations to date.
This is a section across the region showing major rock types and oil shows derived from wells drilled in The Bahamas as well as the Cayo Coco well driled in Cuba and a historic well drilled in the Florida Keys.
All wells indicate the presence of hydrocarbons and each of the wells has live oil shows, most notably in the Doubloon Saxon well, especially in the deeper section of the well below the first anhydrite unit