Formation evaluation and assessment of flow units of some selected wells in the Bredasdorp basin, offshore South Africa
Abstract
Petroleum geologists have long recognized the need to apply secondary and tertiary
hydrocarbon recovery techniques for an accurate understanding of the internal architecture of
a reservoir. The approach to effective incorporation of geological heterogeneity in numerical
models for stimulating reservoir behaviour, detailed petrophysical zonation and mineralogy
composition analyses are required. These include the delineation of sandstone reservoirs and
characterization of the sedimentological and petrophysical properties into a system for
reservoir description in the Gas Field, the grouping of rock units into flow zones from core
porosity and permeability and understanding of the effects of minerals on reservoir flow zones
for the assessment and construction of the flow units.