Hydrocarbon potentian of the Trinidad area - 1977

Abstract

It is now recognized that deltaic and associated sands, together with porous marine limestones, form the vast majority of the reservoirs in the major accumulations of hydrocarbons throughout the world. The source of the hydrocarbons is now thought to be kerogen which is generated from the organic content of principally marine shales which are formed in or near the continental shelves. The Trinidad area contains several sedimentary sub-basins, most of which consist largely of deltaic and associated sediments. These sediments, like most of the ancient deltas of the world, contain major reserves of oil and gas. Other less important reserves should occur in sporadic (time-wise) porous Iimestones. The total proven and probable reserves of the Trinidad area are around 5 billion barrels of oil, of which 1.6 billion barrels have already been produced, and over 47 trillion cubic feet of gas.