| 摘要 |
<p>The invention is a petroleum production well ultrasound logging tool comprising a cylindrical main body (1010) having a lower end holding a sideways monitoring transducer assembly (1000) comprising a ring-shaped ultrasound transducer array (320) of transducer elements (1058), said transducer array (320) having a downward tapering frustoconical shape ,
- said ultrasound transducer array's (320) radially outward face covered by a funnel shaped acoustic window (1045) with a radially inward facing surface (1048) corresponding to said outward face,
- said ultrasound transducer array (320) and said acoustic window retained on said cylindrical main body's (1010) lower end by and end cap (1020).</p> |
