Numerical methods and HPC
Open Access

Table 3

Well test schedule and fluids composition.

Water injection Tracer injection Water injection Shut-in Production
Duration (days) 10 0.5 1.5 3 5
Cumulative duration (days) 10 10.5 12 15 20
Flow rate
Aqueous composition ppm
Comment Waterflood leading to a residual (immobile) oil saturation state S orw in the near wellbore region Inert tracer and ester injection; ester partition between water and oil; small amount of alcohol generated Ester pushed 5 m away from the well; small amount of generated alcohol is pushed downstream the ester Significant amount of alcohol generated from ester degradation Recovery of ester and tracer; production of alcohol; delay between alcohol and ester

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