ANALISIS REMBESAN MIKRO HIDROKARBON SEBAGAI PENDETEKSI RESERVOIR MINYAK DAN GAS DI KABUPATEN WAJO, SULAWESI SELATAN DENGAN MENGGUNAKAN CITRA PENGINDERAAN JAUH

Abstract

The COVID-19 pandemic made a major impact on economic activity around the world, especially Indonesia. With the exploration of new oil and gas reservoirs, it is hoped that it can help economic conditions in Indonesia, considering that Indonesia is rich in natural mineral resources. Micro-hydrocarbon seepage is a common phenomenon that occurs in areas with the presence of onshore oil and gas reservoirs, which are characterized by abnormal natural surface spectral landscapes, characteristic mineral alteration features and geobotanic anomalies that can be detected by satellite imagery. Therefore, this study aims to find a spatial model of the oil and gas reservoir through the micro-hydrocarbon seepage detection approach and its relationship with the physical conditions of the research using these satellite imagery. The parameters used were the mineral alteration symptoms of clay carbonate, ferric iron, ferrous iron, geobotanic anomaly symptoms, and geological characteristics. Landsat 8 satellite imagery is used as input for the Principal Component Analysis (PCA) analysis method and vegetation index, to detect mineral alteration phenomena and geobotanomalies respectively. The results of this study indicate the existence of micro- hydrocarbon seepage phenomena in Wajo Regency. The seepage of micro hydrocarbons is scattered in the southeast area of Wajo Regency and is agglomerated in conglomerate formations.