New play discoveries in the South Sumatra Basin, Indonesia-Exploration case study in CNPC Jabung Block

Abstract

The Jabung block is located in the Jambi depression in the northern part of the South Sumatra Basin. According to the tectonic evolution characteristics and the characteristics of the resource/reservoir/trap, together with the trap structure and the hydrocarbon enrichment characteristics of the South Sumatran Basin, the hydrocarbon play of the basin can be divided into the pre-rift period play, the rift period play and depression period play. The pre-rift period play mainly refers to the basement play. The rift-period play mainly refers to the Lahat play, the Lower Talang Akar play and the Upper Talang Akar play. The depression play mainly refers to the Batu Raja play, the lower Gumai play, the upper Gumai play and Air Benakat play. The main hydrocarbon discoveries in the Jabung block are concentrated in the Lower Talang Akar play and the Upper Talang Akar play in the rift period. In recent years, with the exploration activityies in the Jabung block, some new discoveries in striatigraphical traps have been made in the basement play in pre-rift period and the Batu Raja play and the Gumai play in the depression period.