TY - JOUR
T1 - Rock physics modelling in unconsolidated sandstone reservoir based on contact theory method case study
T2 - 2nd Basic and Applied Sciences Interdisciplinary Conference 2018, BASIC 2018
AU - Riyanto, A.
AU - Maulana, M. R.
AU - Syari, F. T.
AU - Widyarta, R. M.
N1 - Funding Information:
This work was financially supported by Universitas Indonesia under research grant PUTI Saintekes with grant contract number NKB-2398/UN2.RST/HKP.05.00/2020.
Publisher Copyright:
© 2021 Journal of Physics: Conference Series.
Copyright:
Copyright 2021 Elsevier B.V., All rights reserved.
PY - 2021/1/12
Y1 - 2021/1/12
N2 - The study of rock physics modeling has been successfully carried out in FRR Field, Kutai Basin. This study aims to predict elastic parameters of rock such as Vp, Vs, and density which represent the characteristic of reservoir. The Contact Theory (CT) method was used for conducting rock physics modeling at the unconsolidated reservoir. CT method combines the elastic modulus of Hertz Mindlin at the critical porosity (Ȱ0) and Hashin Shtrikman Walpole lower bound (HSW-) to interpolate the elastic modulus from the critical porosity to the minerals modulus. Gassman model has been applied to estimate bulk modulus of a fluid-saturated rock with variation water and gas saturation. The data used in this study is log data coming from one well in FRR Field, Kutai Basin. The targeted reservoir was identified as gas sand reservoir that was deposited in the channel complex of turbidity system. Based on the data, the reservoir has the majority of sandstone rock marked by low density and low gamma-ray at the upper part of log data. The results show correlation between elastic properties estimation and log data with the correlation of Vp was 0.66; Vs was 0.5310, and density was 0.99. This result was indicated that the CT method successfully predicts elastic parameter in unconsolidated sandstone reservoir of the FRR Field, Kutai Basin.
AB - The study of rock physics modeling has been successfully carried out in FRR Field, Kutai Basin. This study aims to predict elastic parameters of rock such as Vp, Vs, and density which represent the characteristic of reservoir. The Contact Theory (CT) method was used for conducting rock physics modeling at the unconsolidated reservoir. CT method combines the elastic modulus of Hertz Mindlin at the critical porosity (Ȱ0) and Hashin Shtrikman Walpole lower bound (HSW-) to interpolate the elastic modulus from the critical porosity to the minerals modulus. Gassman model has been applied to estimate bulk modulus of a fluid-saturated rock with variation water and gas saturation. The data used in this study is log data coming from one well in FRR Field, Kutai Basin. The targeted reservoir was identified as gas sand reservoir that was deposited in the channel complex of turbidity system. Based on the data, the reservoir has the majority of sandstone rock marked by low density and low gamma-ray at the upper part of log data. The results show correlation between elastic properties estimation and log data with the correlation of Vp was 0.66; Vs was 0.5310, and density was 0.99. This result was indicated that the CT method successfully predicts elastic parameter in unconsolidated sandstone reservoir of the FRR Field, Kutai Basin.
KW - Contact theory
KW - Gassman model
KW - Rock physics
KW - Unconsolidated sandstone reservoir
UR - http://www.scopus.com/inward/record.url?scp=85100798048&partnerID=8YFLogxK
U2 - 10.1088/1742-6596/1725/1/012078
DO - 10.1088/1742-6596/1725/1/012078
M3 - Conference article
AN - SCOPUS:85100798048
SN - 1742-6588
VL - 1725
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
IS - 1
M1 - 012078
Y2 - 3 August 2018 through 4 August 2018
ER -