A study of Successful Completion Practices has been conducted in the J Sandstone of the Wattenberg Field of the Denver Julesberg (DJ) Basin. The data gathered from six operators suggests that reservoir quality plays an important role in well production performance. However, for the similar geologic, reservoir, and production conditions, the optimal fracture treatment design can result in significant addition in two-year recovery (TYR) and estimated ultimate reserve (EUR). Based on this study, the optimal treatment design parameters include an average proppant concentration of 3.25 ± 0.25 pounds per gallon (lb/gal) of proppant-laden fluid, pounds of proppant weight per foot of gross pay of 5460 ± 500 (lb/ft), and a pad fluid percentage of 20% ± 2%. Results also indicate that post fracturing performance of a well is more sensitive to the type of gel breakers utilized and post-frac shut in duration than to the type of gel used. By using "successful" instead of "average" completion practices, a 27% improvement in the average TYR benchmark and up to 70% improvement in cumulative cash flow can be achieved.

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