Barras Kelly de fricción:

Barras Kelly de fricción:

Las barras Kelly de fricción son el tipo más utilizado en la perforación rotativa. Se caracterizan por su superficie lisa, lo que les permite deslizarse libremente dentro de la plataforma de perforación. Estas barras dependen de la fricción entre la barra y la plataforma de perforación para la transmisión del par. Las barras Friction Kelly son adecuadas para una amplia gama de condiciones de suelo, incluidos suelos cohesivos y rocas.

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