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Re-Fracturing: Timing, Prerequisites, Diversion and Application

Recorded On: 06/17/2014

Refracturing, as explained by a number of authors, is an accepted, efficient re-stimulation process for rate and recovery enhancement, with application roots in the mid 1950's, that has made an interesting and sometimes economical comeback in shale and other low permeability, liquids-rich reservoirs. This presentation will address the question of when refracs may be economical by examination of production data, (resource recovery, well pressures, rate, composition, etc.), geological factors (TOC, stresses, saturations, regional fracture presence, etc.), well layout (orientation, well spacing, frac spacing, cluster design, etc.) and frac design (fluid type, proppant quality, rate per cluster, etc.).

Sponsored by: Production and Operations Technical Director

George E. King is a registered professional engineer with 42 years industry experience with most aspects of completion, well construction and well failure analysis. He is Apache’s Distinguished Engineering Advisor. He has written 67 papers, book chapters and articles. His work has focused on unconventional formations, sand control, perforating, fracturing and well construction risk analysis. Degrees include a BS in Chemistry (Okla. State), BS in Chemical Engineering and Masters in Petroleum Engineering from University of Tulsa where he was also an Adjunct professor in completions engineering at night for eleven years.

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