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Abstract

A high-speed fluid/mechanical jet erosion system utilizing a high-velocity, spinning jet stream discharged contiguous the surface to be cut. The spinning jet stream is developed from a tangentially driven vortex flow system adapted to merge and enhance the erosive high-speed fluid jet characteristics of fluid and abrasive particle impingement erosion with cavitational collapse erosion in both axial and tangential directions. The system further includes an apertured mechanical cutting element which places the exiting spinning jet immediately against the target formation, providing maximum mechanical and fluid energy transfer to the formation. In this manner, the system induces formation fracturing by assisting mechanically induced fracture propagation with the high-speed jet action while simultaneously exploiting high-speed jet erosion-induced kerfs with the mechanical action of the tool.

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First Claim