The Conventional Core Analysis Study for Reservoir Quality of the Well-X, Rawat Rift Basin, Sudan

Year 2024, Volume: 6 Issue: 3, 340 - 346, 31.12.2024

Sadam H. M. A. Eltayib

Abstract

This paper is focused on the Rawat Basin is a late Cretaceous to early Tertiary rift basin in interior Sudan. The basin is filled with continental sediments of fluvial and lacustrine sandstones, mudstones and local tuffs. Facies distribution is influenced by fault-controlled subsidence followed by prolonged episodes of thermal subsidence. The conventional core analyses study for the selected core plug samples from the cored intervals Core #1 (1441.30-1446.43 m), Core#2 (1451.86 – 1457.64 m) and Core#2 (1478.10 – 1484.70 m). The main results of this study refer that the helium porosity value for the studied plug samples ranged between 16.91% and 38.43%. . The gas permeability value for the studied plug samples ranged between 7.09 to 1668.59 MD. The residual fluid saturation values varied from 0.43% to 60.72 % for oil and 10.75 % to 77.69% for water. The grain density values varied from 2.61 g/cc to 2.67 g/cc. This result showed a very good reservoir quality.

Keywords

Rawat Basin, Core, Porosity, Permeability, Reservoir

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