#TITLE_ALTERNATIVE#

• Main Author: PROBO ANANTO (NIM 12007081), WAHYU
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/13892
• Institution: Institut Teknologi Bandung

hydrocarbon exploration occur until present day, so it is need much study with exploration and/or development concept to estimate the hydrocarbon resources. Regional stratigraphy in this area are: Jatibarang Fm., Talangakar Fm. (Equivalent), Baturaja Fm. (Equivalent), Upper Cibulakan Fm., Parigi Fm., dan Cisubuh Fm.. This study is focus on hydrocarbon resources estimation of Baturaja Formation (Equivalent). This study was based on data which consist of well log data of Brafo-1, Brafo-2, Brafo-3, Brafo-4, Brafo-5, and Brafo-6, side wall core report, seismic 3D, check-shot data of Brafo-1, Brafo-3, Brafo-4, Brafo-5 and Brafo-6 wells, biostratigraphy review of Brafo-6 well, geochemical review of Brafo-6 well. Methodes which were used in this study was began with determine the top dan base of Baturaja Formation, well seismic tie, analysis of carbonates development by using sequence stratigraphy and electrofacies approachment, seismic 3D interpretation, and petrophysical analysis. Baturaja Formation (Equivalent) was formed at Late Miocene in inner littoral – outer sublittoral environtment. Baturaja Formation consist of foraminireral/algal shelfal limestones with coral reef buildups and bank limestones on top of platform margin. This formation has three system tract, transgressive system tract 1 (TST 1), highstand system tract (HST), and early of transgressive system tract 2 (TST 2). Good porosity develop in middle part of this formation, which associated with platform exposure by relative falling sea level. There are eight prospect in Baturaja Formation which associated with structural traps. Based on calculation of hydrocarbon resources using Montecarlo Simulation, the value of total hydrocarbon in this area is 113.19 MMSTB which categorized as unrisk resources. Prospect ranking from high value to low value are: Prospect 3, Prospect 6, Prospect 8, Prospect 4, Prospect 1, Prospect 7, Prospect 5, and Prospect 2.