Structural Evolution and Uncertainty and Its Impact for Reserve Estimation of Stupa Field South Kutai Basin

• Main Author: HERBET (NIM: 22015304), RONALD
• Format: Theses
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/24098
• Institution: Institut Teknologi Bandung

Evaluation and development of oil and gas fields have many uncertainty whether <br /> <br /> due to geosciences and reservoir aspect or non technical uncertainty. One of the <br /> <br /> geosiences uncertainty is structural/geometry uncertainty which giving impact for <br /> <br /> reserve calculation in West Panel Stupa Field, South Mahakam. Therefore Area <br /> <br /> Depth Strain (ADS) and fault forward model (kinematic modeling) are used for <br /> <br /> East Manpatu and Sepinggan fault uncertainty, seismic resolution and well tie <br /> <br /> uncertainty using seismic and well data, hydrocarbon fluid contact definition <br /> <br /> using well data and structural uncentainty geostatistic simulation. Fault forward <br /> <br /> model is used for horizon interpretation in different fields which separated by <br /> <br /> large fault throw and accurately reconstruct horizon seismic and well marker <br /> <br /> while combination forward model and ADS able to calculate fault uncertainty in <br /> <br /> two studied main fault which variant from 50 m near surface up to 2500 m in <br /> <br /> depth more than 5000 m. ADS and paleovertical restoration are used for structural <br /> <br /> evolution and able to determine sytle of main fault which all main faults studied <br /> <br /> are normal fault with different in fault activity and deformation, sedimentation <br /> <br /> rate, thickness and growth strata. Perform different geostatistic simulations <br /> <br /> scenario for GRV calculation with variant fluid contact, variant horizon and <br /> <br /> variant fault uncertainty. Mono sensitivity test showing that horizon, fault and <br /> <br /> contact have similiar impact for GRV and IGIP calculation. Economical and <br /> <br /> development of West Panel Stupa Field will be determine by using that IGIP <br /> <br /> calculation and reduce economical and geoscience risk. This thesis give evidence <br /> <br /> that kinematic modeling and ADS can help for horizon interpretation, structural <br /> <br /> uncertainty simulation and evolution inculuding their impact for Stupa Field <br /> <br /> reserve calculation.