CPC E21B 10/43 (2013.01) [E21B 10/633 (2013.01)] | 20 Claims |
1. An earth-boring tool, comprising:
a body;
a plurality of fixed blades extending from the body;
a first plurality of cutting elements secured to the plurality of fixed blades;
a plurality of removable blade assemblies removably coupled to the body; and
a second plurality of cutting elements secured to the plurality of removable blade assemblies, the plurality of removable blade assemblies exhibiting an aggressiveness that is different than an aggressiveness of the plurality of fixed blades,
wherein a blade portion of at least one of the plurality of removable blade assemblies is configured to deflect responsive to a Weight-on-Bit (WOB) and change exposure to at least one other blade of the earth-boring tool responsive to a change to the WOB.
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