Publications

The Northwest Java Basin is a mature oil and gas basin that has been explored and developed for more than 50 years. Almost all of the conventional plays have been explored and produced. Therefore, discovering new play concepts that potentially have significant resources are very challenging. A comparison of the Sunda, Ardjuna and Jatibarang Sub-Basins that are within the Offshore Northwest Java Basin was carried out based on the original plays of each sub-basin. The results led to the new play analogue for one sub-basin to another. The workflow for the study is as follows: data integration, basin statistics, basin modelling, basin comparison, play inventory, current original play type, play analogue and then play-based map. There are two potential new plays in the offshore Northwest Java Basin namely: (1) Eocene Carbonate Play and (2) Fractured Basement Play. The opportunities of these new plays at the new structure need to be further explored and accelerated to achieve the development phase, apart from the ‘old’ plays. The evaluation study of the Sunda Sub-Basin (including the Yani Sub-Basin and North Seribu Trough), Ardjuna Sub-Basin and Jatibarang Sub-Basin has revealed new exploration plays which are the Cretaceous Fractured Basement play, Eocene Carbonate play, Pre-Rift Volcanoclastic play, Early Oligocene Alluvial Fan and Lacustrine Sandstone plays, Late Oligocene Deltaic Sandstone play, and Miocene Shaly Sandstone play.