Patent ID: 7723989
Filing Date: 2010-05-25
Classification: E21B,G01V,Y10T

Abstract:
1. A transducer system for subsurface use, comprising: a tubular configured for subsurface disposal; a cylindrical body formed of a non-conductive material having walls and an inner bore forming a closed surface of revolution with open ends; the cylindrical body having a transducer element disposed thereon such that only a surface of the element is exposed along the exterior of the body, the exposed element surface being recessed from the outer surface of the body; the cylindrical body formed with its ends having reduced outer diameters compared to the main body outer diameter such that each end comprises a lip; the transducer element linked to a lead routed through the cylindrical body and exiting near the inner bore of the body, a segment of the lead being sealed within a wall of the cylindrical body; the tubular disposed within the inner bore of the cylindrical body such that the body surrounds a section of the tubular; a connector disposed on the tubular to couple with the lead for signal or power transmission between the transducer element and remote electronics; and at least one layer of a non-conductive material disposed on the outer surface of the tubular over the lip at each end of the cylindrical body to form a hydraulic seal.