Successful deep well stimulation utilizing high proppant concentration

Over the past 2-1/2 yr, stimulation of deep, high temperature reservoirs has been achieved utilizing a unique viscous fracturing fluid. It has been shown that, by using large treatments and large concentrations of proppant, reservoirs with low permeability and porosity can be successfully stimulated. A substantial increase in productivity has been demonstrated, and production performance indicates possible increased reserves by the lowering of abandonment pressures. Results are reported for treatments performed in the Vicksburg, Hosston, and Devonian formations. A special emphasis is placed on reservoir properties correlated to stimulation results in the Vicksburg Formation. (20 refs.)