RESERVOIR CHARACTERIZATION USING SIMULTANEOUS INVERSION TO DELINEATE HYDROCARBON RESERVOIR

Authors

  • Muhamad Defi Aryanto
  • Darsono Darsono
  • Julikah Julikah
  • Humbang Purba

DOI:

https://doi.org/10.29017/SCOG.37.3.639

Keywords:

Simultaneous Inversion, Lambda-Rho, Mu-Rho, Vp/Vs

Abstract

Reservoir characterization analysis has been carried out for identifying lithology and Àuid content on TalangAkarFormation in South Sumatra Basin. Robust method that being used in this study is the simultaneous inversion which uses pre-stack gather and well log data from Puja A and Puja B. Elastic parameters resulted from simultaneous inversion are P Impedance, S Impedance and V / V ratio. Lambda-Rho parameter (lr) and Mu-Rho (mr) derived from P impedance (I ) and S impedance (I ). Lambda-Rho is sensitive to Àuid content while Mu-Rho to lithology. Area of interest in this study is Talang Akar Formation as reservoir which contains gas with Lambda-Rho (lr) between 5-15 (GPa*g/cc) and Mu-Rho (mr) 35-45 (GPa*g/cc). The ratio of P wave (Vp) and S wave (Vs) can be used as an indicator to determine Àuid saturation. Gas saturated rock has value of Vp / Vs lower than the water saturated rock. In this study, the ratio of Vp / Vs is 1.5-1.7 for gas saturated rock

 

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Published

15-02-2022

Issue

Vol. 37 No. 3 (2014)

Section

Articles

License

Copyright (c) 2022 SCIENTIFIC CONTRIBUTIONS OIL AND GAS (SCOG)

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