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Facies Mapping of the Holocene Carbonate Complexes in Kepulauan Seribu Java Basin, Indonesia Using Satellite-Derived Data Set

The analog study is common in understanding buried reservoirs and the relationship between architectural complexity and heterogeneity of carbonate deposits. This study processed satellite and false-color images using single-band images and classified them using a supervised classification technique to generate an environmental facies map. Thus, the study’s objectives are to map facies distribution in selected carbonate depositional environment and investigate oceanographic parameters that influence the development and evolution of modern carbonates in Holocene Kepulauan Seribu patch reef complexes, Java Basin. The main sub-environments are reef sand apron, subtidal reefal margin, and shallower subtidal lagoon. Annual wind patterns in the Java Basin have influenced the development of carbonate sediment in the Kepulauan Seribu archipelago, resulting in the formation of an isolated carbonate platform pattern with a single crest and asymmetrical dipping flanks. Meanwhile, the salinity of seawater influences the production of modern carbonate deposits as the Java basin is situated at the equator line, where the salinity of the seawater is moderately salty (35‰) and contributes to the favorable conditions for carbonate growth. The analysis of oceanographic elements with the integration of quantified environmental facies distribution is conducted to monitor the deposition of carbonate sediments which gives insight into carbonate distribution on the studied platforms. Satellite-derived facies maps provide an accurate overview of depositional facies patterns at the field scale in the oil and gas industry, enabling geologists to assess the potential of an oil and gas reservoir.