Abstract
Summary Extensive field development of a new fracturing system incorporating a temperature-delayed crosslinker was undertaken over a 15-month period in south Texas. Treatments performed at depths from 7,500 to 17,100 ft [2290 to 5210 m] revealed that the new fluid has properties superior to those of high-temperature systems that use conventional organometallic crosslinkers. Treated formations include the Wilcox, Frio, and Vicksburg. The use of this new fluid has resulted in lower and more consistent friction pressures. Average sand concentrations have been increased. A significant decline in the occurrence of screenouts has been observed.
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