Developing and Applying Fluid Properties for the Wara Formation, Greater Burgan Field, Kuwait: A Supergiant Field With Variable API Oil Gravity

Abstract

SPE meet1ngs are subJect to publicot1on rev1ew by Ed1tcrial Committees of the Society of Petroleum Eng1neers Electronic reproduction, d1slflbulion, or storage of any part of this paper fer commmc1al purposes w1thout the wfltten consent of the Soc1ety of Petroleum Engineers is prohibited. Permission Lo reproduce 1n print is restncted to an abstract of not mora than 300 words; illustrations may not be copied. The abstract must contain conspicuous aclmowledgmont of where and by whom the paper was presented. Write Librarian, SPE, P.O Box 833836, Richardson, TX 75083-3836, US A , fax 01-972-952-9435.Abstr,-,ct API gravity vs. Depth correlations were developed for the Greater Burgan Field. The results of this work dramatically changed the determination of fluid PVT properties for the field which were used in Build-up analysis, wellbore flow correlations, simulation model initialization and OOIP estimates. Past PVT studies based solely on fluid sample analyses failed to honor the heavy oil or tar near the oil-water contact. Additional API gravity Vs depth data available from core dat3, and initial production tests were incorporated into the analysis. As a result, new correlations were developed which recognized values down to 10° API near the original 0\VC. Previous correlations did not have oil gravity samples lower than 24° API gravity.