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Sadiq Jalal
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Aerospace Engineering Agriculture, Biological Sciences & Forestry Astronomy Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Earth & Planetary Sciences Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Physics

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Reservoir Characterization Using Post Stack Seismic Inversion on The Upper Sihapas Formation, Malacca Strait, Central Sumatra Basin Candra Teja Kusuma; Md. Shofiqul Islam; Sadiq Jalal; Thais de Souza Kazmierczak; Luis Antonio Castillo-López
Frontier Advances in Applied Science and Engineering Vol. 2 No. 2 (2024)
Publisher : Tinta Emas Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59535/faase.v2i2.342

Abstract

Post-stack seismic inversion is often conducted to quantitatively determine the characteristics of reservoirs using post-stack seismic data, with the output being acoustic impedance. Rock characteristics such as porosity, lithology, and fluids can be represented by impedance values, making the distribution of impedance the focus of this study in determining potential areas of interest. The research area is located in the Malacca Strait Block, Central Sumatra Basin, with the reservoir in the Upper Sihapas Formation. This study uses post-stack seismic inversion with acoustic impedance values ​​as the output. With a crossplot of acoustic impedance vs. porosity and the color from the gamma ray log, sand and shale lithologies can be separated. The crossplot also produces a simple linear equation to convert acoustic impedance values ​​to porosity values. The reservoir zone has acoustic impedance values ranging from 13,000 (ft/s)*(g/cc) to 16,500 (ft/s)*(g/cc), which are converted into porosity values ranging from 9% to 40% . Point bars, crevasse splays, and restricted brackish bays are areas with good reservoir quality, as indicated by low acoustic impedance values.
Co-Authors Candra Teja Kusuma Luis Antonio Castillo-López Md. Shofiqul Islam Thais de Souza Kazmierczak