Dwandari Ralanarko

Pertamina · Department of Geology

Comprehensive Seismic Facies and Seismic Attribute Analysis for Precise Depositional Environment Interpretation within the Upper Gita Talangakar Formation, Field Widuri, Asri Basin

The study area is located in Sunda Basin, Offshore SE Sumatera Block. Talang Akar Formation (TAF) was formed from the Late Oligocene to the Early Miocene, during the marine transgression phase. Talang Akar formation has two members namely Zelda at the bottom and Gita at the top. This study will specifically discuss reservoir characterization in...

The North East Java Basin area is an area that has considerable geothermal potential. However, the identification of geothermal potential in this area is still not maximized. Due to the lack of knowledge and data, in-situ investigation of geothermal potential has various disadvantages and significant risks in the early stages, and the expenses incu...

The geological structure at the study site has a variety of Holocene and Pleistocene rock formations. Several location points are suspected to have geothermal systems with considerable potential to be developed and used economically. In the context of developing and utilizing this research, research was carried out in the Mt. Pancar area, Bogor, We...

Southeast Sumatra is a prolific oil and gas block located offshore in the Java Sea, 90 km north of Jakarta Bay. This area covers two major basins, namely Sunda Basin and Asri Basin. The initial development of the area focused on faulted and high closures and high-resistivity reservoirs. Further analysis shows that there are special low-resistivity...

Southeast Sumatra is a prolific oil and gas block located offshore in the Java Sea, 90 km north of Jakarta Bay. This area covers two major basins, namely Sunda Basin and Asri Basin. The initial development of the area focused on faulted and high closures and high-resistivity reservoirs. Further analysis shows that there are special low-resistivity...

INTA/B Field is one of the most producing mature fields in Widuri Area, Asri Basin, Offshore SE Sumatera, Indonesia, therefore it is subjected to rejuvenation to enhance hydrocarbon production. INTA/B Field is distinguished from other fields from its featured anticlinal structures that have the northeast-southwest trending. This structure is heavil...

A team was formed by the Indonesian Association of Geologist (IAGI) in early 2021 to revisit the Indonesian Stratigraphic Nomenclature which was issued in 1996. After 25 years many experts find that the document needs to be updated. The team is a mix of geologists with both academic and industry background. Several representatives from the Geologic...

The Asri and Sunda Basin are located offshore Southeast Sumatra under the SE Sumatera Production Sharing Contract (PSC). Currently, Pertamina Hulu Energi OSES operates in the Asri and Sunda Basins, known as Southeast Sumatra (SES) Block. As one of Indonesian prime oil and gas producing area in the past 50 years, these basins have produced cumulativ...