TITLE:
Study on Calculation Method of Compressional Velocities Based on Field Well Logs
AUTHORS:
Feizhou Shi, Yanchun Wang, Xueqing Liu
KEYWORDS:
Compressional Velocities, Well Logs, Calculation Method
JOURNAL NAME:
International Journal of Geosciences,
Vol.7 No.7,
July
19,
2016
ABSTRACT: In the past, most of the studies for
compressional velocities are based on experimental measurements, which lack the
support of field data. The purpose of this study is to estimate the
compressional velocities based on well log data of delta front subfacies of
Lower Tertiary ages of Ji-Dong oil field, China. At initial stage, we have
chosen the well log parameters (effect factors) which strongly influence on
compressional velocities and established a new modified equation for
compressional velocities, which is based on these effect factors. Then Gardner,
De-hua Han and this newly established equation were utilized to calculate the
compressional velocities in each well. Finally, Least-square regression was
carried out to check the fitting of each equation. Regression results clearly
indicate that our purposed equation shows better fitting as compared to Gardner
and De-hua Han equations.