Patent ID: 8505634

Claim:
An earth-boring tool for use in forming or enlarging a wellbore, comprising: a body; at least one blade projecting outwardly from the body; a plurality of cutting elements carried by the at least one blade, the plurality of cutting elements comprising: at least two shearing cutting elements positioned proximate a rotationally leading surface of the at least one blade and each comprising an at least substantially planar cutting face positioned and oriented for shearing a subterranean formation when the earth-boring tool is rotated under applied force to form or enlarge a wellbore; and at least two gouging cutting elements positioned proximate the rotationally leading surface of the at least one blade, wherein at least one gouging cutting element of the at least two gouging cutting elements is located directly between two shearing cutting elements of the at least two shearing cutting elements, wherein at least one gouging cutting element of the at least two gouging cutting elements is positioned to rotationally lead the two shearing cutting elements of the at least two shearing cutting elements when the earth-boring tool is rotated under applied force to form or enlarge a wellbore, each of the at least two gouging cutting elements comprising an at least substantially non-planar cutting face positioned and oriented for at least one of crushing and gouging a subterranean formation when the earth-boring tool is rotated under applied force to form or enlarge a wellbore, wherein at least one shearing cutting element of the at least two shearing cutting elements is located between two gouging cutting elements of the at least two gouging cutting elements.