Apparatus and method for inertial measurement of pipeline deflec

Geometrical instruments – Indicator of direction of force traversing natural media – Borehole direction or inclination

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33302, 33313, 33178F, E21B 700

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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

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