Abstract:
Muglad Basin of Sudan is highly complicated by faulting. Interpreted seismic data show large numbers of tensional faults which have affected the overall basin and have formed several sub-basins. One of the sub-basins distributed around Muglad Basin is Rakuba sub-basin. This study aims to conduct formation evaluation on Rakuba sub-basin, and focuses on Bentiu and Abu Gabra formations through well logging data interpretation gathered from three wells Najah1, Falah1, and Rabah1. The main goal is divided into two stages; the first stage is to do petro-physical evaluation, and the other stage is log-facies analysis. Petrophysical evaluation has been performed where shale volume has been calculated; furthermore porosity, water saturation, permeability, and cut off have been estimated. Moreover, results properties correlated, to facilitate second stage log-facies made based on K-mean cluster analysis. According to methods applied to data and after analyzing, Bentiu formation classified as a good homogenous reservoir rock, Abu Gabra formation classified as heterogeneous formation and possible to be a source rock. However both of them are full saturated with water. The rock type identified and categorized into three facies.
