An Integrated Petroleum System Modeling Approach to Investigate Origin and Distribution of CO2 off the Coast of Sarawak, Offshore Malaysia

Abstract

High CO2 encountered in various wells throughout Sarawak basin have always been area of concern for both exploration and development. As the contaminants negatively impact economic value as well as hinders our commitment toward net zero carbon, understanding the source of these requires critical and urgent attention. This paper presents an integrated basin scale petroleum system modelling approach to understand source, generation, and distribution of CO2 in Sarawak offshore. A regional scale CO2 Model in Sarawak Basin is constructed covering West Luconia, Central Luconia, Tatau, and Balingian area. A comprehensive Petroleum System Model is generated integrating geophysical, geological and well data to predict concentration and risk of CO2 in Sarawak Basin. The model incorporates contribution from both organic and inorganic CO2 sources to understand generation and charge evolution histories.