Bahia M Ben Ghawar
University of Tripoli, Libya
Title: Lithology investigation of Shaly sand reservoir by using wire line data, “Nubian Sandstone†case study, SE Sirt Basin
Biography
Biography: Bahia M Ben Ghawar
Abstract
Identify the rock lithology has important meaning for estimating the reserve of petroleum as reservoir capacity and storage ability. The lithology identification from well log based on not conventional cross plot proposed and studied, which is more easier instead of rock core data observation results. However, this work carried out comparison between manual chart and analytical solution of matrix parameters (Ïma and ΔTma) estimation values of producer Shaly sand reservoir, and present the main depositional environment affects. Incompatible and compatible cross–plotting between measured wire line data recorded over than 750 feet produced Upper Nubian Sandstone belong to two oil fields, SE Sirt Basin. Rock physics and petrophysics are studied for specific purposes to understanding the relationships between rock physics parameters and lithology. Consequently, variety of matrix parameters values is contributed by different clay minerals present in this reservoir type. This Shaly reservoir divided into three main units (R, E and F), and each unit has been subdivided into three subunits (F3, F2, F1, E3, E2, E1, R3, R2 and R1) from bottom to top according to depositional and petrophysical properties.