oa Key Controls in Hydrocarbon Phase Distribution – a Case Study from the Sarawak Basin

The hydrocarbon (HC) phase of an accumulation is the expression of a petroleum system, resulting from a complex interaction of geochemical, geological, and physical aspects. Each of these elements carries its own degree of interdependency, uncertainty, and variation over time. This study will demonstrate how localized variations of depositional settings and magnitudes of structural deformation play altogether a fundamental role in controlling the gas liquid ratio (GLR) charge, hence determining the distribution of HC phase in the reservoirs of the shallow waters of the Sarawak Basin