Load detection and indicator apparatus for well tubing or the li

Details Load detection and indicator apparatus for well tubing or the li Load detection and indicator apparatus for well tubing or the li

1988-09-26

1989-06-27

Kisliuk, Bruce M.

Wells

Above ground apparatus

Moving tubing or cable into an existing well

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

Patent

active

048420581

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A load cell apparatus especially suitable for detecting and indicating loads on tubing injected into or withdrawn out of a well with an injector apparatus.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. A fluid chamber is provided to support the weight of the tubing head, facilitating accurate load cell readings.

REFERENCES:
patent: 3658270 (1972-04-01), Slator et al.
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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