FLOATING VALVE ASSEMBLY FOR DRILL PIPES

Abstract: a floating valve assembly for drill pipes (c). the circulation systems contain conventional and non-conventional oil and gas drilling fluids. the assembly includes a first member device (d) of the piston or plunger type and a second member device (d) of the swing check type, which are integrally connected in series and arranged vertically in tandem inside the pipe.

Inventor(s): Lorenzo Ernesto Pinto Calvis, Carlos Daniel Llorens, Pablo Gaston Gonzalez, Pablo Alberto Perotti

CPC Classification: E21B34/10 (operated by control fluid supplied from outside the borehole)

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