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Comparison of 3D Simulations with Data for the Interaction of an Array of Linear Shaped Charges Against a Complex Target Configuration

KIRSTEN HOWLEY, DENNIS BAUM, DOUGLAS FAUX, DOUGLAS DOBIE, ROBERT MAILHOT, GREGORY SCHEBLER, MARK BRINSDEN

Abstract


Shell International Exploration and Production Inc. is developing an Emergency Severance Tool (EST) capable of severing various types of marine riser systems used in deep sea underwater drilling operations. The purpose of the tool is to rapidly release the surface drilling rig from the blowout preventer located on the seabed in the event of a blowout scenario, as occurred in the Macondo Gulf of Mexico event. The present design incorporates an array of linear shaped charges which surround the marine riser and are designed to sever the marine riser and the enclosed steel drill string. On May 14th, 2015, Lawrence Livermore National Laboratory (LLNL) performed an experiment designed to study the penetration of an array of shaped charge jets through an intact drill collar. These data are used to validate and calibrate numerical models of the shaped charge jet performance. Results from these experiments show that the performance and penetration was accurately predicted by simulations using LLNL’s ALE3D code.


DOI
10.12783/ballistics2017/16942

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