Very Susanto
Indonesia is one of countries that may produce shale oil and gas. Oil shale now becomes important in Indonesia as promising unconventional energy since the conventional oils are decreasing. This study may be classified as a reconnaissance in trying to evaluate oil shale in the Indragiri Hulu Regency, Indonesia that may become source rock of the unconventional oil. Objectives of this study were: (1) to characterize the organic geochemistry of the oil shale of the formation in terms of its quality, quantity, and maturity, (2) to interpret depositional environment of the shale, (3) to define the type of oil shale at the Kelesa Formation, and (4) to define the future role of this formation as source rock of the shale oil. During this study, thirty-four outcrop sediments of the Kelesa Formation have been collected. The samples condition were relatively fresh since they were collected from around 25 to 50 cm deep. All samples were then sent to the BSI Lab for all geochemical analyses. The samples were then introduced to some standard geochemical apparatus. The conclusion is oil shale in the study area contains good to excellent organic matter, mainly Type I-II (oil prone), and from just mature to relatively mature. The shale seems to consist of a mixture between algal and some higher plant materials. It contains the Rundle typed lamosite, indicating Pediastrum organisms predominant deposited in a fresh water to brackish lacustrine environment. The Kelesa Formation is very promising to be the source rock for shale oil in the area.
Penerapan Karya Tulis
Oil shale now becomes important in Indonesia as promising unconventional energy since the conventional oils are decreasing.