IMPACT OF ROCK HETEROGENEITIES ON RESERVOIR ROCK QUALITYAND HYDROCARBON DISTRIBUTION IN RESERVOIR ROCKS FROMOFFSHORE WEST BARAM DELTA, SARAWAK BASIN, MALAYSIA

All the West Baram Delta fields are matured fields with declining production. There is therefore the need to better characterize reservoir rocks in the delta to enhance production and exploration success. The primary research objective of this study is to characterize heterogeneities in reservoir rocks of West Baram Delta and to determine the impact of rock heterogeneities on reservoir rock quality and hydrocarbon distribution. In all the literature reviewed, there is no such integrated study on offshore reservoir rocks in the delta. Therefore, the facies, petrographic, geochemical, petrophysical and hydrocarbon distribution analysis were carried out on core samples trom seven subsurface wells in the delta.