Publications

The research location is in the Morowali Waters and Gulf Kendari, Central Sulawesi with an area of 31,160 km2 and the research was conducted in the Banggai Basin area where some hydrocarbon fields are produced. The purpose of this study is to identify the depth of the seabed, detection and evaluation of seismic stratigraphy and also identification of potential hydrocarbon traps. The research methods used a sub-bottom profile investigation from strata box and seismic reflection to apply the sequence images concept of the stratigraphic contrast of lithology property. Based on the results of the data processing on the SBP (Sub-Bottom-Profile) trajectory, it was discovered that the contour pattern varies at a depth of 150-2000 meters, followed by the morphology of the seabed forming canyon from tectonic activity until recent time. The results of the seismic stratigraphy interpretation show the area of interest can be divided into six sequence stratigraphy (sequence A - sequence F), which correlate to the regional stratigraphy, from old to young, representing basement metamorphic to quarternary coral reefs. The results of seismic stratigraphy detection on the two lines GM3-MRWL-02 and GM3-MRWL-09 shows some structures which reflect the hydrocarbon traps through structural anticlinorium in the southwest-northeast of the line. On the line GM3-MRWL-02, precisely in the middle section, there is a wide valley in the center of the basin (depocentre) interpreted as a potential hydrocarbon kitchen. This valley can also be identified on gravity data, and is likely represents source of the hydrocarbon resources that have been identified. Anticline structures which can serve as hydrocarbon traps cab be clearly seen on line GM3-MRWL -09. In the northeast of the line, there is an area of high relief where the bedrock has been faulted creating small rotated sedimentary blocks or mini-basins faulted into sedimentary bedding plane made up from bedrock. In the southwest of the line there is a graben that has formed a series of anticlines in the shallower stratigraphy. In addition, in the southwest there is a graben which has been folded and forms an additional anticline. Keywords: Morowali Waters, Gulf Kendari, seismic stratigraphy, sub-bottom-profile, hydrocarbon traps