Depositional Processes and Facies Architecture of Balikpapan Sandstone Formation, Application of 3d Digital Outcorp Model (Dom) to Identify Reservoir Geometry and Distribution in Deltaic System

Abstract

In recent years, digitalization of the outcrop technique is a powerful tool - for detailed analysis on the geo-software. Thus, the integration between outcrops and subsurface data for reducing the subsurface uncertainties. This provides the impetus to propose and accomplish a holistic understanding of the architecture and geometry of the deltaic system and to provide an exhaustive analysis of their sedimentary processes. This study investigates the temporal and spatial distribution of deltaic sandstone using a combination of 3D Digital Outcrop Model (DOM) application and traditional geologic mapping of Balikpapan Formation in the Kutei Basin. Our study has successfully revealed that DOM is an excellent method to better understand the depositional process and facies architecture within the heterogeneity of deltaic system. The classification scheme presented in this study is also applicable to other sedimentological settings worldwide.

Effect of Depositional Environment and Climate on Organic Matter Enrichment in Sediments of the Upper Miocene—Pliocene Kampungbaru Formation, Lower Kutai Basin, Indonesia

“…Fine-grained lithologies are known to contain significant amounts of organic material, which transforms into hydrocarbons under specific geological conditions. Several mega sequences with a shallowing upward trend from bathyal mudstones to delta plain/fluvial channel sandstone were deposited during the eastward progradation of the deltaic system in the eastern part of the Kutai Basin [7][8][9]. The basin with thick Miocene and Pliocene sediments that have been proven to contain large hydrocarbon reserves has been intensively studied for more than a century, indicating its ongoing importance in the global energy landscape [10].…”

“…Existing studies that included the Lower Kutai Basin have mainly focused on paleoclimate reconstructions on general sedimentary characteristics of deltaic successions within the Mahakam Delta or have dealt with the hydrocarbon potential of the Miocene Balikpapan Formation [7,9], which represents the most important source rock in the basin. The focus of this study is the overlying, relatively poorly known Kampungbaru Formation, which consists of alternating sandstone, siltstone, claystone, and coal.…”