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Wear measurement system - for continuous monitoring of drill string pipes during drilling
Wear measurement system - for continuous monitoring of drill string pipes during drilling
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机译:磨损测量系统-用于在钻井过程中连续监控钻柱管
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摘要
An elongated casing is lowered down to the bore on a cable and has a clear centre channel for drilling mud. Within the casing a synchronous motor drives a rotating active electromagnetic sensor fed from an a.c. supply. Recording instruments on the surface produce a synchronized continuous log of instanteous depth and of the internal dimensions of the pipe relative to centre line.
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