In the Upper Morrow formation of western Oklahoma, Northcutt et al. reported that higher proppant concentrations improved production. The Standard Oil Company found that placing 2 lb/ft2 20/40 HSP doubled pre-frac rates. Increasing concentration to 5.5 lb/ft2 resulted in four-fold production increases, despite modest reservoir permeability as low as 0.01 md.
Field application of a state-of-the-art fracture stimulation technique has been used to achieve higher proppant concentrations than generally pumped by industry in the Upper Morrow formation of the western Anadarko Basin. As a result of the application of this technique, greater production increases have been realized.
Author(s): R.R. Hannah, J.C. Northcutt, C.J. Robertson, Standard Oil Production Co.
Paper Number: SPE 18260