HYBRID DRILL BIT WITH HIGH BEARING PIN ANGLES

• Main Authors: MASSEY ALAN J, NGUYEN DON Q, ZAHRADNIK ANTON F
• Format: Patent
• Language: English
• Published: 09.09.2010
• 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

The invention disclosed and taught herein is directed to an improved hybrid drill bit having at least two rolling cutters, each rotatable around an axis of rotation, at least one of the rolling cutters having a high pin angle, and at least one fixed blade. The increase in the pin angle can encompass...