Flow Potential of Thin Beds in DW Turbidite Reservoirs from Production Logs

Abstract

XY is a deepwater turbidite field with potential untapped volume opportunity estimated at~100MMbbls residing in Inter-Channel Thin Beds (ICTB) facies. Quantitative interpretation of Production Logging Tool (PLT) data was performed using commercial production log interpretation software to accurately quantify contributions to total flow and flow potential of the ICTB facies. The PLT data was acquired pre-production across two ICTB dominated "A" and "B" reservoirs in the XY-P well during a production test at flow rates of 5,000 and 12,000 bbls/day. The PLT evaluation result was calibrated using production test data. This paper demonstrates the application of a simple workflow to estimate the flow potential of ICTBs from conventional PLT data. The results suggest ICTBs have significant potential to flow at economic rates. The interpretation also demonstrates producibility of ICTB at relatively high Productivity Index (PI) at flow rate above 12,000bbls/day. Intuitively, one can infer that though the flow potential of ICTB is lower than Channel Storey Margin (CSM) facies, ICTBs could become potential producers in the XY Field if produced standalone at relatively high drawdown.