#TITLE_ALTERNATIVE#

• Main Author: PRAMUDYO (NIM:12010078), EKO
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/18380
• Institution: Institut Teknologi Bandung

Conglomerate layer within Jatibarang Formation in Golden Field is known to contain gas. However this reservoir has not been modeled yet. Hence the objectives of this research are to model the distribution of the petrophysical properties of conglomerate reservoir and to calculate the gas volume. <br /> <br /> <br /> <br /> <br /> <br /> Jatibarang Formation is a synrift deposit that deposited during basin formation that formed north-south oriented grabens and half-grabens. The conglomerate interval of Jatibarang Formation is interpreted as stacked braided <br /> <br /> <br /> <br /> <br /> <br /> river sediment. <br /> <br /> <br /> <br /> <br /> <br /> Data used in this research are well log data, 3D seismic cube, well survey data, check-shot data, laboratory analysis report, and internal study report. <br /> <br /> <br /> <br /> <br /> <br /> Methods that used in this research are multi-mineral method for petrophysical calculation, seismic interpretation, conglomerate distribution modeling that guided by seismic volume attribute relative acoustic impedance (RAI), Sequential <br /> <br /> <br /> <br /> <br /> <br /> Gaussian Simulation method for porosity and permeability distribution modeling, Leverett J-function for water saturation distribution modeling, and gas initial in <br /> <br /> <br /> <br /> <br /> <br /> place volume calculation based on model. <br /> <br /> <br /> <br /> <br /> <br /> The result show the conglomerate distributed in NNW-SSE trend. This trend follows braided river form that once flow relatively southward direction. Porosity <br /> <br /> <br /> <br /> <br /> <br /> distribution follows conglomerate rock distribution. Meanwhile water saturation distribution is controlled by porosity distribution, permeability distribution, and <br /> <br /> <br /> <br /> <br /> <br /> closure pattern. The GIIP volume based on model is 20.723,8 mmscf for 1P reserves and 23.019,7 mmscf for P1+P2 reserves