Daniel D Blue

US Patent:

20120170406, Jul 5, 2012

Filed:

Feb 21, 2012

Appl. No.:

13/401503

Inventors:

Rocco DiFoggio - Houston TX, US
Daniel Duncan Blue - Houston TX, US

Assignee:

BAKER HUGHES INCORPORATED - HOUSTON TX

International Classification:

G01V 1/40

US Classification:

367 35

Abstract:

An apparatus, method and compute-readable medium for detecting a gas influx event in a borehole fluid during a drilling operation is disclosed. A measurement of an acoustic velocity of the borehole fluid is obtained at an acoustic sensor disposed in a borehole. A measurement of temperature of the borehole fluid is obtained at a temperature sensor disposed in the borehole. A process compares the measurement of the acoustic velocity of the borehole fluid to the measurement of the temperature of the borehole fluid to detect the gas influx event.