Geometrical instruments – Indicator of direction of force traversing natural media – Borehole direction or inclination
Patent
1982-11-22
1985-06-25
Haroian, Harry N.
Geometrical instruments
Indicator of direction of force traversing natural media
Borehole direction or inclination
33302, 33313, 33178F, E21B 700
Patent
active
045245266
ABSTRACT:
Apparatus and a method for detecting deflections along the length of a pipeline. A plurality of measurements of inertial attitude are made along the length of the pipeline over time by means of apparatus, including sensors, associated with a pipeline pig. Thereafter, by comparing a time sequence of such measurements, points of flexure are accurately located and identified.
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patent: 4361192 (1982-11-01), Trowsdale
Haroian Harry N.
Kramsky Elliott N.
Litton Systems Inc.
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