John A. Knox

Design techniques for chemical fracture squeeze treatments

The chemical fracture squeeze technique, combining the effects of a fracturing treatment and a squeeze operation, has been more successful than conventional squeeze operations. Knowledge derived from well stimulation and reservoir engineering research can provide a means of predicting the effective life of such a treatment. Analysis of theoretical equations and concepts developed allows selection of improved treatment techniques based on specific formation conditions. These equations have been computerized to allow rapid determination of treatment recommendations. Such chemical fracture squeeze techniques can be utilized in the economic application of corrosion inhibitors, emulsion breakers, paraffin and scale inhibitors. The application of these techniques in conjunction with fracturing treatments is shown to be very effective. The results of field treatments are given. (15 refs.)