ENDOGENOUS FACTORS OF THE FORMATION OF OIL FIELDS IN THE CRYSTALLINE BASEMENT OF THE CUU LONG BASIN, SOUTH VIETNAM SHELF

Abstract

The study of formation constraints of oil-and-gas (hereafter, petroleum) fields in the Precambrian–Mesozoic basement rocks of sedimentary basins or crystalline basement is of special importance in determining the regularities of naphthide genesis and petroleum accumulation. It is known that most oil fields in the basement are related to combined traps composed of outliers of the weathering crust, fractured zones in the basement, and diverse forms of basal bed wedging in the sedimentary cover of its inliers.