Z. Barlai, N.A. Berruin, R. Abdel Mawla
Petroleum Engineering Department,
A1-Fateh University, Tripoli
LIBYA
ABSTRACT
In this research a method whereby the capillary displacement pressure Pcd and the representative average capillary pressure in shaly sandstone reservoirs is presented as a continuous information VS. depth from well logs. By the aid of special core analysis, correlation functions that relate the capillary characteristics of the reservoir rock to its lithologic development were obtained. Since the lithologic influence factor C is a well log-derived parameter the correlations were then used to determine by means of well logs the capillary displacement and average capillary pressures for borehole sections where special core analysis is not available. The presented technique has been developed and applied to the shaly sandstone reservoir of the Sarir oil field in Libya, S.P.L.A.J.