Patent ID: 9097065
Filing Date: 2015-08-04
Classification: E21B,G06F

Abstract:
1. An earth-boring rotary drill bit, comprising: a bit body including a plurality of blades; and cutting elements mounted to the blades of the bit body; wherein the cutting elements and the blades of the bit body are configured such that an expected average rubbing area between a surface of the blades of the bit body and a subterranean formation to be drilled by the drill bit over at least one drilling interval increases to a value over zero at a depth-of-cut that is about one hundred and fifty percent (150%) or less of an intended median depth-of-cut for the drill bit over the at least one drilling interval, and such that the expected average rubbing area increases with increasing depth-of-cut at an average rate of at least three square inches per inch per revolution of the drill bit (3.0 in.