GRUPPI FRESANTI SUPERABRASIVI COMPRENDENTI FRESE CON VARIE ORIENTAZIONI E PUNTE DA PERFORAZIONE PROVVISTE DI TALI GRUPPI

• Main Authors: PESSIER RUDOLF C.O, ISBELL MATTHEW R, DOSTER MICHAEL L, DYKSTRA MARK W, HEUSER WILLIAM H
• Format: Patent
• Language: Italian
• Published: 17.04.2003
• Subjects: EARTH DRILLING; EARTH DRILLING, e.g. DEEP DRILLING; FIXED CONSTRUCTIONS; MINING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS

A cutting assembly comprised of first and second superabrasive cutting elements including at least one rotationally leading cutting element having a cutting face oriented generally in a direction of intended rotation of a bit on which the assembly is mounted to cut a subterranean formation with a cutting edge at an outer periphery of the cutting face, and a rotationally trailing cutting element oriented substantially transverse to the direction of intended bit rotation and including a relatively thick superabrasive table configured to cut the formation with a cutting edge located between a beveled surface at the side of the superabrasive table and an end face thereof. A rotationally trailing cutting element may be associated with and disposed at a location on the bit at least partially laterally intermediate locations of two rotationally leading cutting elements. Drill bits equipped with the cutting assembly are also disclosed.