Understanding Potential Hydrocarbon Opportunity Through Geomorphological Classification of Shallow to Deep Marine Environment of Sarawak Basin

Identifying new prospective play in the West and North Luconia is challenging, as it requires a better understanding of the geology in deep-water environments. This paper discusses the geological features visible in the study area supporting their depositional environment focusing on the Post Middle Miocene unconformity (MMU) within Cycle VI – Cycle VIII. This was conducted via the strata slicing method, using 3D seismic volume s within different geological provinces. The West and North Luconia have geological features that range from shallow marine to deepwater environments, with a possible slope observed moving towards the northern area. The spectral decomposition attribute was applied to the horizon, and the frequency was blended to enhance the observed geological features. The study reveals a slope channel, turbidite, and mass transport complex (MTC) as evidence of a transition from a shallow to a deep-water environment. The possible shelf break was observed to have migrated northward from Cycle VI to Cycle VIII, indicating a progradational sequence. These findings provide a better understanding of the environment, which can chase recent shallow success in West and North Luconia as well as finding the sweetspot for future exploration drilling campaign.