Advanced PDC design extends durability and speed

摘要

Extensive field testing verified the design, with the Diamond Edge series producing longer runs and showing exceptional post-run conditions. Varel International has introduced its patent-pending poly-crystalline diamond compact (PDC) bit series, Diamond Edge, for hard rock and transitional drilling applications. Challenged with applications that called for increased blade and cutter counts as well as high penetration rates, bit designers looked for ways to exploit the speed of a single set bit with the durability of a plural set design.