Botes de limpieza o de rezaga

Son herramientas muy similares a los botes de perforación; son usados para la limpieza del fondo de la perforación (la limpieza forma parte del procedimiento constructivo de la pila) y para suelos arcillosos y limosos. Estas herramientas pueden aplicarse con o sin un aditamento guía (piloto) al final del bote. Al igual que los botes de perforación, el dado del kelly se acopla en la caja que se encuentra en la parte superior del bote

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