Customer Challenge
As legacy production from Albian and Aptian reservoirs consolidates, the Client aims to develop new reservoirs to maximize asset value. The Lower Albian interval has been identified as a potential reservoir candidate. Vulcania Energy was tasked to investigate the Lower Albian’s productivity within three weeks to initiate a reperforation campaign and prioritize 23 wells for subsequent perforation.
Solution
Vulcania Energy conducted a comprehensive petrophysical evaluation, including log QC, harmonization, and correction, fluid typing, 5-mineral multimineral analysis, Sw, and net pay determination. We established a correspondence between Sw, PHIT, Vsh, and analog mobility thresholds to define net pay intervals. Wells were ranked based on hydrocarbon pore footage and a minimum thickness of approximately 2m.
Outcome & Value Delivery
The Lower Albian is expected to predominantly contain non-moveable paleo-oil, evidenced by weak correlation between So and TVDSS, high Uranium content, and saturations in the ROS ranges. Up to 5 candidates with high CoS for potential mobile oil were identified, contingent on the absence of casing/cement integrity issues. Due to uncertainties in some intervals’ mobilities, prioritizing them in an active reserves’ replacement program may not be advisable. Nevertheless, pressure or well testing of the Lower Albian is recommended before P&A wells producing from deeper intervals. The evaluation provided crucial insights for optimizing reservoir management and production strategies.
