Petrophysical Evaluation of Mauddud Formation in Selected Wells from Ratawi Oil Field, Southern Iraq

  • Humam Q. Hameed Department of Geology, College of Science, University of Baghdad, Baghdad, Iraq
  • Afrah H. Saleh Department of Geology, College of Science, University of Baghdad, Baghdad, Iraq
Keywords: Ratawi Oil Field, Mauddud Formation, Petrophysical Properties, CPI

Abstract

    The objective of this paper is determining the petrophysical properties of the Mauddud Formation (Albian-Early Turonian) in Ratawi Oil Field depending on the well logs data by using interactive petrophysical software IP (V4.5). We evaluated parameters of available logs that control the reservoir properties of the formation, including shale volume, effective porosity, and water saturation. Mauddud Formation is divided into five units, which are distinguished by various reservoir characteristics. These units are A, B, C, D, and E. Through analyzing results of the computer processed interpretation (CPI) of available wells, we observed that the main reservoir units are B and D, being distinguished by elevated values of effective porosity (10%-32%) and oil saturation (95%-30%) with low shale content (6%-30%). Whereas, units A, C, and E were characterized by low or non-reservoir properties, due to high water saturation and low values of effective porosity caused by increased volume shale.

Published
2021-09-30
How to Cite
Hameed, H. Q., & Saleh, A. H. (2021). Petrophysical Evaluation of Mauddud Formation in Selected Wells from Ratawi Oil Field, Southern Iraq. Iraqi Journal of Science, 62(9), 2956-2969. https://doi.org/10.24996/ijs.2021.62.9.12
Section
Geology