Simultanément, on mesure l'effort o

Simultanément, on mesure l'effort opposé à l’enfoncement de l’ensemble pointe et tiges. Cet effort est appelé effort total et noté Qt. Il comprend d’une part l’effort de pointe et d’autre part l’effort de frottement latéral, qui s’exerce sur toute la hauteur du train de tiges.

Résultats (Anglais) 2:

Simultaneously measuring the opposing force to the depression of the set point and stems. This effort is called total effort and noted Qt. It comprises both the effort to tip and the other lateral friction force, which is exerted on the entire height of the drill string.

Résultats (Anglais) 3:

Simultaneously, we measure the effort opposed to deflection of the tip assembly and rods. This effort is called total effort and Qt note It includes on the one hand the effort of tip and on the other hand the effort of side friction, which is exercised over the entire height of the train of rods.