Load detection and indicator apparatus for well tubing or the li

Wells – Above ground apparatus – Moving tubing or cable into an existing well

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Details

7386258, 166113, 166250, 166385, 177208, E21B 1908

Patent

active

047934107

ABSTRACT:
A load cell apparatus especially suitable for detecting and indicating loads on tubing injected into or withdrawn out of a well with an injector apparatus. The load cell apparatus is located longitudinally directly below the injector apparatus to avoid angling of the tubing as it is run into, or pulled out of, a well. Two gauges are provided to independently indicate positive and negative loads on the tubing and to facilitate determining whether the pipe has hit an obstruction in a well.

REFERENCES:
patent: 3285485 (1966-11-01), Slator
patent: 4133206 (1979-01-01), Hida et al.
patent: 4450906 (1984-05-01), Firmin
patent: 4676312 (1987-06-01), Mosing et al.

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