Correlation of seismic velocity and density of metasandstone from Kati Formation, Seri Iskandar, Perak, Malaysia


Author : Norsyafiqah Salimun, Abdul Ghani Rafek & Khairul Arifin Mohd. NohPublication : Bulletin of the Geological Society of MalaysiaVolume : 65Page : 131-134Year : 2018


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Bulletin of the Geological Society of Malaysia, Volume 65, June 2018, pp. 131-134

Correlation of seismic velocity and density of metasandstone from Kati Formation, Seri Iskandar, Perak, Malaysia

Norsyafiqah Salimun*, Abdul Ghani Rafek & Khairul Arifin Mohd. Noh

Department of Petroleum Geosciences
Universiti Teknologi PETRONAS (UTP)
Bandar Seri Iskandar, 32610, Perak, Malaysia
*Corresponding author email address: norsyafiqahsalimun@gmail.com

Abstract: In this study, 17 metasandstone core samples from various depths in the CTW-1 Well at Seri Iskandar were used to measure the density and seismic velocity. P-wave and S-wave velocity is measured using Sonic S-X viewer while density is measured from ratio of core samples weight and volume. The density of core samples ranges from 2.43 g/cm3 to 2.679 g/cm3. The P-wave velocity ranges from 2331 ms-1 to 5133 ms-1 while the S-wave velocity ranges from 1454 ms-1 to 3050 ms-1. The R2 value for velocity and density relationship is 0.86 and 0.67 for P-wave and S-wave respectively. Three velocity zones are classified based on the results obtained. The interpretation is supported with petrographic analysis. The results shows a strong correlation between metasandstone rock density when P-wave velocity and fair correlation to S-wave velocity. Since variation will always exist depending on the rock type, the equations only valid for particular test conditions.


Keywords:
Seismic velocity, density, correlation, Kati Formation