ORANGE BASIN (MOOSEHEAD-1 Well)The Moosehead-1 was the third well drilled, in the Orange Basin, aiming for a gigantic four-way structure, over 1,300km2, of Barremian age. The structure was penetrated on depth, at a water depth of 1,716m, reached a total depth in volcanic rocks at 4,170m MD (8m deeper than prognosis), reaching a 100-meter-thick section of microbiolite carbonate of similar depositional environment and age as the supergiant reservoirs in the Brazil Tupi, Buzios and Mero oil Fields “pre-salt” reservoirs. However, porosity and permeability conditions were poor at the well location and no hydrocarbon shows were present. Again, although no oil/ gas was encountered, the Moosehead-1 deep-water well penetrated over 120m of the Aptian–Barremian K black shale source rock system of the Kudu Formation; Fig. 3; Mello et al., 2011, 2012, 2015 and 2022).
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