Abstract

The Makassar Straits in Indonesia are located in deepwater basins with major gas/condensate potential. There are multiple play types in the Straits including carbonates on basement highs, synrift clastics on fault blocks and ponded and basin floor turbidites. In the North and South Makassar Basin the pre-rift accretionary prism basement fracture trends are predominantly NE-SW, the Meratus Trend, Syn-rift extensional phase is dominantly guided by basement trends in NW-SE and NE-SW trends. Post-rift subsidence phase with wrench faulting from the fold belts is not always recorded but has led to the reactivation of some faults in the basins. An orogenic phase overprint along the eastern margin has created the West Sulawesi Fold Belt. All 4 petroleum system elements are present in the Straits, source, reservoirs, traps and seals. Encouraging results from direct observations from the core including gas shows were confirmed by laboratory analysis.

Keywords: Pasangkayu PSC • Sadang • Sageri PSC • South Mandar • South Sageri • Ruby Field • Pangkat-1 • Martaban-1 • S Makassar-1 • Kris-1 • Sultan-1 • Siri-1 • Doang-1 • Bone-1 • NSA-1F • L46-1 • SSA-1X • Tanakeke-1 • Kelara-1 • ODB-1 • Pelangi-1 • UEP • Heat Flow