Presenters
Dave Kemp, Cardinal Chemical, Inc
Long open-hole or heavily perforated intervals with stringers of varying porosities and permeability have always been difficult stimulation problems. In the majority of instances treatments have been staged, continuously, with various types of blocking agents. Only after the job was complete, could any down-hole evaluation of the success of the diverting agents be estimated. Obviously, critical information such as the extent of the formation treated per stage, communicated zones, channeling behind the pipe, etc. was unavailable until after the treatment was over.