The Red Fork, a member of the Pennsylvanian age Cherokee group in western Oklahoma and the Texas panhandle, has been the target for major drilling and completion activity for several years. During 1979-81, several wells were completed in the Red Fork with varied results. The history of these completions and treatments has been traced and determinations have been made as to why post-1981 completions have shown better results than pre-1981 completions. From these results and with the aid of computer monitored pump-in/flow-back tests, the Red Fork may be "typed" by an empirically derived correlation. Thus completions can be designed for this particular "typed well" response.

With the information obtained from the pump-in/flow-back test (i.e., maximum proppant concentration, maximum pumping time, and fracture closure pressure), a stimulation treatment may be designed for maximum proppant placement. After placement of the proppant, a technique may be applied to induce closure so proppant is trapped in the producing interval instead of depositing in the bottom of the induced fracture, which may not be a portion of the producing interval. An example would be a large shale section or a section having such low permeability or porosity that is below the perforated section such that production may be below the economic payout of the well.

This paper presents (1) field treatment histories, (2) analysis of completion success pre-and post-1981, and (3) methods of job design to help achieve maximum proppant placement in the Red Fork Formation.

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