APPLICATION OF EXTENDED ELASTIC IMPEDANCE INVERSION TO ANALYZE HYDROCARBON RESERVOIR DISTRIBUTION IN “MARPAUNG” FIELD

• Main Author: BOAS MANOGI SINAGA (NIM: 12313055), ANDRIANUS
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/21071
• Institution: Institut Teknologi Bandung

Seismic Inversion Method is known as a strong method for reservoir characterization. In Seismic <br /> <br /> <br /> Inversion, it’s possible to describe physical property for each layer. Inversion seismic is <br /> <br /> <br /> considered better than conventional seismic methods due to the limitations of conventional <br /> <br /> <br /> seismic that only describe the contrast at the limits of the layer. However, inversion results need <br /> <br /> <br /> to be verified by the appearance of log data and seismic data that can be observed directly. <br /> <br /> <br /> The elastic parameters of Young Rho Modulus is the most sensitive elastic parameters for <br /> <br /> <br /> separating sandstone lithology from shale on this field due to its sensitivity to brittleness index <br /> <br /> <br /> of rock. High numbers of (E-Rho) represent sand stone lithology. This elastic parameter can be <br /> <br /> <br /> estimated with EEI ( 730 ). Elastic parameter of Lambda Rho Poisson’s Ratio (LR*PR) is the <br /> <br /> <br /> most sensitive elastic parameters for characterization of reservoar fluids. Low number of LR*PR <br /> <br /> <br /> represent the presence of hydrocarbon especially gas content. LR*PR parameter can be <br /> <br /> <br /> estimated with EEI ( &#61485;360 ). <br /> <br /> <br /> Using Extended Elastic Impedance aplication, it’s possible to estimate the reflectivity of almost <br /> <br /> <br /> all form of elastic parameter by combine both of Vp, Vs, and density information from the <br /> <br /> <br /> seismic prestack data and log data.Later, the reflectivity can be inverted with post stack <br /> <br /> <br /> inversion workflow.