Electricity: measuring and testing – Of geophysical surface or subsurface in situ – Using electrode arrays – circuits – structure – or supports
Reexamination Certificate
2008-01-15
2009-12-29
Aurora, Reena (Department: 2858)
Electricity: measuring and testing
Of geophysical surface or subsurface in situ
Using electrode arrays, circuits, structure, or supports
C324S347000
Reexamination Certificate
active
07639016
ABSTRACT:
Dynamic gain setting is provided for a multiphase flow measuring device that measures in-phase and quadrature signals. The average current at a plurality of measure electrodes is determined and subtracted from the individual measure currents to give a measurement with improved dynamic range.
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Maxit et al.;Downhole Instrumentation for the Measurement of Three-Phase Volume Fractions and Phase Velocities in Horizontal Wells, Proceedings of ETCE/oOMAE2000 Joint Conference: Energy for the New Millennium, Feb. 14-17, 2000, pp. 8, 5 Figs.
J.O. Maxit et al.; “Downhole Instrumentation For the Measurement of Three-Phase Volume Fractions and Phase Velocities in Horizontal Wells”, Proceedings of ETCE/OMAE2000 Joint Conference: Energy for the New Millennium, Feb. 14-17, 2000, New Orleans, LA, pp. 1-8.
Aurora Reena
Baker Hughes Incorporated
Madan & Sriram, P.C.
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