Steady-state models better predict waterflood frac results

A combination of analytical and numerical methods shows that the application of a pseudosteady-state solution to a steady-state problem invariably overpredicts the dimensionless productivity index (JD) and the benefits of hydraulic fracturing.The goal of hydraulic fracture treatment design is to maximize the dimensionless productivity index (JD). Single-well, pseudosteady-state models used commonly in fracture treatment design fail to consider that a pattern waterflood is more nearly a steady-state flow regime.More than half of the world’s oil reservoirs and more than 80% of Russia’s reservoirs are under waterflood. In many of these reservoirs, operators use improved hydraulic...

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