A Study on the Coupled Numerical Simulation of the Electric Field and Fluid Field During Supercritical CO2 Oil Displacement Based on Digital Rocks

Reservoir testing is often needed to understand flow potential and to confirm hydrocarbon discoveries. In Southeast Asia, reservoirs are frequently laminated, thinly bedded, and compartmentalized. Testing every individual (main) zone with Drill Stem Test (DST) is not economical due to cost and rig time constraints. Different testing methods have been used such as Tubing Stem Testing (TST) and multi zone DST, with and without Production Logging Tool (PLT) for zonal contribution analysis. However, these methods still need to flow hydrocarbon to surface, require a large footprint, i.e. separator units at surface, and flaring hydrocarbon to atmosphere. Interval Pressure Transient Test (IPTT) and Deep Transient Testing (DTT) have been introduced as greener alternative wireline testing methods, where each zone can be isolated and tested individually without flaring. IPTT has been used for more than 20 years to derive zonal permeability. IPTT tests single hydraulically connected layers; obtained permeability often compares well to testing derived permeability. However, IPTT feasibility is limited in terms of permeability ranges, thickness, and reservoir fluid viscosity. With the