Transducer assembly for a downhole tools

摘要

Methods and related systems are described relating to a sealed acoustic transducer assembly for use in a wellbore is provided. A tool body is deployed in the wellbore, having a groove and a sealed acoustic transducer assembly removeably mounted therein. The transducer assembly includes an acoustic transducer element, and an elongated fluid filled sealed container housing the transducer element. The container includes flexible portions along the length of the container which allows for volume changes when exposed to changes in external pressure and/or temperature. Acoustic measurements downhole are made using the transducer element.

主权项

1. A method for making acoustic measurements in a wellbore comprising:
deploying a tool body in the wellbore, the tool body having a groove and a sealed acoustic transducer assembly removeably mounted therein, the transducer assembly including an acoustic transducer element, and an elongated fluid filled sealed container including a flexible housing having the transducer element housed therein, the flexible housing including flexible portions along the length of the container and one or more inner cavities filled with a compensating fluid, whereby the container and the compensating fluid allow for volume changes when exposed to changes in external pressure and/or temperature, and wherein the sealed container having substantially the same cross section in the longitudinal direction near each of the transducer elements and in-between any two transducer elements, and making acoustic measurements downhole using the transducer element.