G - Physics – 01 – N
Patent
G - Physics
01
N
349/42
G01N 29/04 (2006.01) E21B 3/00 (2006.01) E21B 17/00 (2006.01) E21B 19/00 (2006.01) G01B 17/02 (2006.01) G01N 29/22 (2006.01) G01N 29/24 (2006.01)
Patent
CA 1059614
ULTRASONIC INSPECTION APPARATUS FOR WELL OPERATIONS Abstract of the Disclosure An ultrasonic inspection apparatus for use in inspecting drill pipe or like tubular members being tripped into and out of a well borehole comprises one or more planarly arranged set of ultrasonic search units, such as wheel search units, arranged on a frame suspendible within the well derrick and defining a vertical passage for the tubular member. Access is provided to the passage by the tubular member from a direction transverse to the longitudinal axis of the tubular member, for example, by providing an openable hinged frame. When in the passage, the pipe is stabilized by wheels exerting a force on the pipe in excess of that exerted by the search units which are biased into sonically coupled contact with the pipe. A linkage on each search unit preserves the angular relation between an electro-acoustical transducer within the search unit and the pipe surface. A method of inspecting tubular goods on the floor of a drilling rig during a tripping operation is also provided.
262736
Chang Chi-Haung
Claycomb Jack R.
Dekerlegand Deke E.
Hauldren H. Morris
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