Paper: CHARACTERIZATION OF A SMALL, MATURE OIL RESERVOIR WITH LIMITED DATA A CASE STUDY OF THE ROUND TANK QUEEN FIELD

A common problem in small, mature fields is the limited and poor quality data, typically consisting of only old logs and production history. The objective of this work is to demonstrate practical applications for processing and analyzing the limited information. The Round Tank (Queen) reservoir in Southeast, New Mexico was selected as a case study. Old logs, 14 modern logs and one-core are the main sources for this reservoir study. The results from modern-log analysis will be used to support the results obtained from the old logs. Normalization of old neutron logs and calibration of old sonic logs were two techniques applied to acquire valuable information. As a result the mineralogy, porosity and productive thickness of the Queen were determined. A newly discovered friable sand bed was identified and has implications on stimulation and reservoir performance. The reservoir characterization can be further used for field optimization or EOR project.