G - Physics – 01 – L
Patent
G - Physics
01
L
G01L 5/24 (2006.01)
Patent
CA 2621592
A target pressure value is determined during the learning mode. Subsequent pressure values are then compared to the target value. For example, a first connection is tightened in a conventional manner, while its pressure is monitored during the learning mode. If the tightening process went well, then an operator pushes a button that tells the monitor to remember how much pressure was used on the tongs to tighten the first connection. The pressure value of that first joint then becomes the target pressure value for any subsequent joints. As additional joints are tightened, the pressure applied to the tongs is monitored and compared to the first one to ensure that all the joints are as good as the first one within an allowable tolerance.
Selon l'invention, une valeur de pression cible est déterminée pendant un mode d'apprentissage. Des valeurs de pression consécutives sont ensuite comparées à la valeur cible. Par exemple, un premier raccord est serré de manière conventionnelle et la pression de serrage est contrôlée pendant le mode d'apprentissage. Si le processus de serrage a été mené à bien, l'opérateur presse un bouton qui ordonne au système de contrôle de garder en mémoire la pression appliquée sur les clés pour serrer le premier raccord. La valeur de pression du premier raccord devient alors une valeur de pression cible pour tout autre raccord. A mesure que des raccords supplémentaires sont serrés, la pression appliquée sur les clés est contrôlée et comparée à la première afin d'assurer que tous les raccords soient serrés de la même manière que le premier avec une certaine tolérance de sécurité.
Bereskin & Parr Llp/s.e.n.c.r.l.,s.r.l.
Key Energy Services Inc.
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