New correlations for etched fracture width and half-length of acid-fractured wells

摘要

Acid fracturing is one of the most efficient well stimulation techniques in carbonate reservoirs. Estimation of well productivity after fracturing is an important issue in acid fracturing design and production engineering analysis. There are some correlations, available in the literature, for estimation of effective wellbore radius of hydraulically fractured wells. However, fracture etched width and its half-length must be known to use these correlations and, to our best knowledge, a simple and correct method for prediction of these parameters has not been reported yet.