Fracing pressure-depleted wells achieves success

As shown by fracturing results in an Egyptian field, operators should consider pressure-depleted wells as fracture candidates to boost existing production and extend the economical life of wells and fields.In the fracturing of these zones, a primary objective is to control high spurt leakoff by using higher injection rates to outrun fluid leakoff to the depleted formations. These pressure depleted formations offer the unique advantage of boundary layers acting as fracture-containment barriers because of the differential pressure between the boundary shales and the pay zone. Click here to enlarge imageFracturing provides accelerated production, bypasses of any skin damage, and possible in...

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