Proppant flowback following a hydraulic fracture treatment, is a major problem in the Northern Mexico area. Frequently, Proppant flows back as the well returns to production. Generating huge amount of cost associated with wellbore cleanouts and damage to surface facilities. In addition, production is delayed due to long shut-in times and the need to initially produce the well under choke.
Therefore, been able to control proppant flowback at fracture closure would not only eliminate the extra expenses associated with it, but would allow to return the well back to production inmediately with optimized chokes. In other words, an optimized proppant free robusted production.
This paper presents successful applications of stabilizing proppant packs with randomly oriented fibers of similar density to the proppant in dry gas reservoirs with low permeabilities (<0.5 md). All wells were put on production immediately following fracture treatment, with an average of almost 2 fold production increase over resin-coated proppant treatments, having a case with up to 12 folds of increase. During "clean-up" of the wells, return fluids were collected for evaluation confirming expected proppant control and fluid compatibility between fracturing gels and breakers. Finally, production performance months after the treatments are discussed including conclusions and recommendations derived from treatments.