Reeled tubing counter assembly and measuring method

Details Reeled tubing counter assembly and measuring method Reeled tubing counter assembly and measuring method

1992-07-16

1993-08-10

Novosad, Stephen J.

Wells

Processes

With indicating, testing, measuring or locating

166 64, 166 77, 166384, E21B 1922, E21B 4100

Patent

active

052340538

ABSTRACT:
The present apparatus describes a mechanism used with a lubricatior used for straightening tubing inserted into a well during service operations. The injector incorporates multiple drive chains which carry gripping blocks or mechanisms for engaging the tubing and which provide direct measurement of the travel of the tubing as it is inserted. As tubing is inserted, a sprocket is rotated on engagement with the drive chain and it in turn rotates a shaft supporting a smaller sprocket engaged by a link chain with another sprocket. The various sprockets have selected teeth ratios to provide the requisite proportionate scaling of the system. The last sprocket drives a pulse generator which forms pulses proportionate to tubing insertion into the well.

REFERENCES:
patent: 3116793 (1964-01-01), McStravick
patent: 3313346 (1967-04-01), Cross
patent: 4585061 (1986-04-01), Lyons, Jr. et al.
patent: 4673035 (1987-06-01), Gipson

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