File:Mth14ch02f08.jpg

Star plots of peak-height ratios from gas-liquid chromatograms of two representative oils in the field. These plots are consistent with plots of another six oils from the field that were also analyzed in the study, and they indicate that oils in Unit B are compositionally distinct from those in Unit A. Because variations at the D, K, M, N, and P axes are significant enough to indicate that oils in Units A and B are not in fluid communication with each other, Units A and B appear to represent separate reservoir compartments (Suhas Talukdar, Core Laboratories, Inc., written communication, 1998). From M. S. Clark, R. K. Prather, J. D. Melvin, 2003, Characterization and Exploitation of the Distal Margin of a Fan-shaped Turbidite Reservoir--The ARCO-DOE 91X-3 Horizontal Well Project, Yowlumne Field, San Joaquin Basin, California in AAPG Methods in Exploration No. 14: Horizontal Wells: Focus on the Reservoir, Edited by T. R. Carr, E. P. Mason, and C. T. Feazel.