Methods of designing earth-boring tools using a plurality of wear state values and related methods of forming earth-boring tools

摘要

Methods of designing an earth-boring tool are described, including calculating one or more performance parameters based on drilling conditions, a plurality of wear state values, and a set of values of other design variables. Methods of enhancing a performance parameter in the design of an earth-boring tool are also described, including calculating the performance parameter based at least partially on a plurality of wear state values and a first set of values of other design variables, calculating the performance parameter based at least partially on the plurality of wear state values and a second set of values of design variables different than the first set, and comparing the calculated performance parameters to determine which of the first and the second set is closer to a target range or value across a range of the plurality of wear state values. Related methods of forming an earth-boring tool are also described.

主权项

1. A method of designing an earth-boring tool, comprising:
assigning values for design variables of an earth-boring drill bit including a plurality of values of a wear state variable and a first set of values of other design variables; using a computer to generate a plot of one or more performance parameters of the earth-boring drill bit based on drilling conditions, the plurality of values of the wear state variable, and the first set of values of other design variables for the earth-boring drill bit; using the generated plot and selecting at least one of the values of the first set of values of other design variables for incorporation into a computer model of the earth-boring drill bit; and generating the computer model of the earth-boring drill bit based on the selected at least one of the values of the first set of design variables for other design variables.