Measuring and testing – Liquid analysis or analysis of the suspension of solids in a... – Content or effect of a constituent of a liquid mixture
Patent
1975-10-08
1977-08-16
Queisser, Richard C.
Measuring and testing
Liquid analysis or analysis of the suspension of solids in a...
Content or effect of a constituent of a liquid mixture
G01N 2904
Patent
active
040417735
ABSTRACT:
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.
REFERENCES:
patent: 2878447 (1959-03-01), Price et al.
patent: 3066254 (1962-11-01), Price et al.
patent: 3248933 (1966-05-01), Stebbins
patent: 3540266 (1970-11-01), Lofgren
patent: 3582771 (1971-06-01), Placke
patent: 3612987 (1971-10-01), Placke et al.
Chang Chi-Haung
Claycomb Jack R.
DeKerlegand Deke E.
Hauldren H. Morris
Kreitman Stephen A.
Queisser Richard C.
W. C. Lamb
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