Bowen Casing Spear Calculator — ASO

By NOV Inc. on AppTrack Ninja.

NOV Bowen Casing Spear System Calculator helps to determine the overall load rating and mode of failure for the spear, mandrel, grapple, and casing in each application. The strengths in the instruction manual are based on the Mandrel tensile strength only and does not consider the entire system together. We are now able to model the entire system including Mandrel, Grapple, and Casing together. Our calculations were developed based on feedback from the field, various scale lab testing up to failure, and FEA models. Important assumptions: - We consider the catch range for the Grapple as well a…

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