EVALUATION OF EFFECTIVE INFINITE CONDUCTIVITY FRACTURE HALF-LENGTHS ON A GROUP OF WELLS RE-STIMULATED WITH ULTRA-LIGHTWEIGHT PROPPANTS
Flowing/pumping transient analysis was performed on a group of wells scattered across the Permian basin that had been re-stimulated with relatively large volumes of brine and an ultra-lightweight proppant with substantially the same specific gravity as the brine. The results of these analyses are presented, and effective infinite conductivity fracture half-lengths are reported and compared to offsets that were stimulated with more conventional techniques.These analyses, along with other parameters that were recorded off several hundred treatments performed, were utilized to develop a set of guidelines for optimum candidate selection for future work. The candidate selection parameters are presented, and practical guidelines for exploiting and optimizing the process are explained.