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- W1983722404 abstract "Abstract The deepwater South Makassar basin is located offshore South Sulawesi in water depths averaging 2000m and is an under-explored region that was only drilled at its periphery. Talisman operates the Sageri, South Sageri and Sadang PSCs located in the central part of the basin. This basin belongs to the South-Eastern margin of the Sundaland geological province. Tertiary sediment deposition occurred due to a rifting period of Eocene age, during which crustal extension created a tilted basement blocks topography, filled with continental to shallow-water syn-rift clastic sediments composed of volcanics, sands, coals, and shales. Carbonate development followed as more marine conditions prevailed by mid Eocene time. Rifting terminated at the end of the Eocene and the water depth increased, resulting in the progressive drowning of most carbonate buildups. Ultra-deepwater conditions were then rapidly established in the central part of the basin, where sedimentation never caught up with the high subsidence resulting in a thick, shaly Neogene overburden section. Talisman conducted a regional study to support the exploration of the South Makassar basin. However there was no data to calibrate the thermal state of the central deepwater area, which remained unknown due to the different nature or thickness of its crust. A seabed data acquisition campaign including heat flow measurements provided the necessary calibration. The heat flow was then mapped using the BSR (Bottom Simulating Reflector) horizon, showing lateral variations within a range of 50 to 75 mW/m2, overall higher than in the adjoining North Makassar basin (30 - 60 mW/m2). Results of the basin model indicate a significant present-day gas generative window in the centre of the basin and less mature kitchens in the southern grabens toward the south Platform. The primary structural traps are in place and receiving early hydrocarbons since the Mid-Miocene, but the migration/trapping efficiency is unknown. The South Makassar is one of the remaining high potential frontier areas to be explored within Indonesia. Talisman's methodology to apply a regional multi-disciplined analysis to this basin has led to an early qualified evaluation of its petroleum system. This has allowed for timely business decisions to be made and as a result Talisman is in a strategically good position for the exploration of this basin." @default.
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- W1983722404 date "2011-11-15" @default.
- W1983722404 modified "2023-09-26" @default.
- W1983722404 title "Evaluation Of The South Makassar Basin Using An Integrated Multi-Discipline Approach" @default.
- W1983722404 doi "https://doi.org/10.2523/iptc-14555-ms" @default.
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