Basin Modeling and Hydrocarbon Source Rock Potential of Middle Eocene Ngimbang Formation in East Java Basin, Indonesia

Abstract

East Java Basin is one of the successful hydrocarbon producers in Indonesia. East Java Basin is the back-arc basin and it was the result of collision between the Indian Plate and Sunda Microplate. In Rembang Zone, Middle Eocene Ngimbang Formation is known as source rock materials and it consists of sandstone, siltstone, limestone, shale, and coal seams. Hydrocarbon source rock potential and 1D basin model have been performed by interpreting log, seismic and geochemistry data. These methods give an insight for exploring hydrocarbon. In the results, TOC ranges from 0.40 wt% – 4.31 wt% with kerogen types II/III oil and gas. Generation, migration, accumulation, and preservation happened in Early Miocene or 23 million years ago from south to north migration pathway of the research area.

AAPG Datapages/Search and Discovery Article #90336 ©2018 AAPG Asia Pacific Region, The 4th AAPG/EAGE/MGS Myanmar Oil and Gas Conference, Myanmar: A Global Oil and Gas Hotspot: Unleashing the Petroleum Systems Potential, Yangon, Myanmar, November 13-15, 2018