Method and apparatus for monitoring fluid flow through a...

Details Method and apparatus for monitoring fluid flow through a... Method and apparatus for monitoring fluid flow through a...

G - Physics

01

F

340/99

G01F 1/00 (2006.01) E21B 21/08 (2006.01)

Patent

CA 1116263

ABSTRACT A method and apparatus are disclosed for monitoring fluid flow through a drilling string in order to detect a wash-out or a restriction. The apparatus includes circuitry for sensing the rate of pumping of a fluid, circuitry for sensing the pres- sure of the fluid being pumped, a function generator to process a pressure signal and a pump rate signal and generate a fluid flow indication signal, circuitry to actuate an alarm, and an alarm. The method includes sensing the pumping rate, sensing the pressure, and generating a fluid flow indication signal that gives an indication of the relationship between the pumping rate and pressure.

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