Extraordinary production improvements have made ultralightweight proppants a standard component of fracture stimulation treatments in many areas of the San Juan and Permian basins and the Barnett Shale, among others.
With specific gravity very close to that of slickwater, these proppants enable propped fracs with much greater effective fracture lengths and higher conductivity compared with natural sand, and with much lower total volumes of proppant.
Broader use of these efficient proppants has been limited to relatively shallow formations
Figure 1. During a May well stimulation operation, BJ crews used...