Application of Ultrasonic Technology for Well Leak Detection

Identification of the source of pressure communication<br>between well tubing-casing and casing-casing annuli<br>presents an enormous challenge to petroleum<br>engineers. Qatar Petroleum recently field-tested an<br>acoustics based tool to successfully pinpoint the source<br>of high pressure in the tubing casing annulus in a deep<br>gas well in an onshore field. This paper presents a<br>description of the technology and the findings from the<br>field trial.