Malaysian Journal of Geosciences (MJG)

Evaluation of textural parameters were carried out to understand the arrangements of reservoir matrix (rocks). Well data were obtained from wells 001, 002 and 003 and used to generate suites of logs like gamma ray, density and sonic. Microsoft Excel was the software adequately used. The lithology was identified as sand for gamma ray information less than 75 API (or shale if this value is greater than 75 API). Gamma ray log and density log with respect to depth were generated. These results were used to obtain porosity; the average result of porosity estimated are approximately 17.42%, 29.98% and 17.53% from wells 001, 002 and 003 respectively. The outcomes of sorting, skewness and kurtosis are 9.09, 1.62 and 0.47 respectively for well 001; 1.52, 0.23 and 1.20 respectively for well 002 and lastly, corresponds to 4.76, 0.22 and 0.60 for well 003. The matrices making up the lithology are therefore extremely poorly sorted, very fine skewed and platykurtic for well 001; poorly sorted, coarse skewed indicating high energy environment and leptokurtic for well 002; poorly sorted, coarse skewed (high energy environment) and very platykurtic for well 003. Moreso, the porosity obtained is in the good class for wells 001 and 003 but excellent for well 002.