Method for distinguishing between single-phase gas and...

Details Method for distinguishing between single-phase gas and... Method for distinguishing between single-phase gas and...

G - Physics

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G01H 3/12 (2006.01) E21B 47/10 (2006.01) G01H 3/08 (2006.01) G01M 3/00 (2006.01) G01M 3/24 (2006.01) G01N 29/14 (2006.01) G01V 1/50 (2006.01)

Patent

CA 1057389

METHOD FOR DISTINGUISHING BETWEEN SINGLE-PHASE GAS AND SINGLE-PHASE LIQUID LEAKS IN WELL CASINGS Abstract of the Disclosure An acoustic detector is moved through a well to detect sound at various levels within the well. An electrical signal indicative of the detected sound is applied from the acoustic detector by way of a conductor cable to uphole recording equip- ment including an amplifier, spectrum analyzer, and recorder. The spectrum analyzer provides a frequency spectrum of the amplified signal from the acoustic detector. This frequency spectrum is recorded for use in the identification of flow leaks through or behind the casing of the well in accordance with predetermined spectrum analysis characteristics of single-phase gas and single-phase liquid leaks.

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