INTEGRATION OF CONVENTIONAL AND ADVANCED WIRELINE TOOLS WITH CORE DATA AND GEOMECHANICAL STUDY FOR ESTIMATING THE PETROPHYSICAL PROPERTIES OF THE CLASTIC AND CARBONATE RESERVOIRS AND THEIR IMPACT ON RESERVOIR DEVELOPMENT PLANS IN SOUTH SANNAN FIELD, WESTERN DESERT, EGYPT.

Abstract

In this study, the author is trying to shed light on the petrophysical characteristics of the clastic and carbonate reservoirs in South Sannan concession, Western Desert, Egypt. In the light of geological, and geophysical studies to evaluate and improve its hydrocarbon potentialities of South Sannan Field, Western Desert, Egypt through the following topics: 1-Geological Investigations including: Reviewing the general geological setting of the concerned area using subsurface data gathered from well logs, geophysical data and previously published literatures with the aid of isopach, lithofacies, structural contour maps as well as cross sections. 2-Petrophysical Investigations: Including analyses of the available borehole data for petrophysical analyses of the Reservoir intervals in concern as well as identifying its textural and structural characteristics, including analysis and interpretation of the conventional logs and core data. Methods of the well logging analysis and Computerized statistical processing including different relationships and cross plots for the study intervals. These are through the following: I-Wireline Log Analysis: Including analysis and interpretation of the available conventional wireline logs such as Density, Neutron, Gamma Ray and Resistivity tools to achieve the following: A- Lithological and mineralogical identification of the studied interval. B- Determination of the petrophysical parameters (total and effective porosities, fluid saturations, shale and matrix contents and permeability index), by using wireline analysis and compare it with the core petrophysical parameters. C- Determining the reservoir characteristics (net sand, net pay, gas in-place and recoverable oil) for the hydrocarbon bearing zones of the studied intervals.