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  • External casing perforating pinpoints hard-to-reach pay treatment

    T. Krawietz, G. Hobbs, J. Rodgerson and H. Lopez

    This article overviews the results of the new external casing perforating system applied in seven multi-stage wells recently treated in the West Texas Permian basin. Significant bottom-line cost savings and increased production, compared to previous conventional multi-stage treatments are documented. Described are the basic principles and application of the patented external casing perforating system, and how it compares to conventional methods. A summary review of the seven well treatments further describes novel use of the tubing “dead” string to monitor actual bottomhole pressures during treatments. And application of an extended crosslink time modifier in reducing treatment volumes, to save nearly $25,000 per well, is reviewed.

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2013 Fracturing Technology

2013 Fracturing Technology