Refreshable polycrystalline diamond compact (PDC) drill bits

A method for refreshing a drill bit, the method comprising:

• providing a drill bit comprising a rotatable blade with a plurality of cutters circumferentially disposed around a circumference of the rotatable blade wherein the rotatable blade rotates the plurality of cutters into various cutting positions upon receipt of a signal,
• wherein the plurality of cutters comprises a portion recessed within a cavity of the drill bit while a remaining portion is exposed relative to the cavity;
• performing drilling operations within a well;
• obtaining, using a computer processor, drilling data;
• determining, using the computer processor, a relative aggressiveness of the drill bit;
• comparing, using the computer processor, the relative aggressiveness of the drill bit with a target minimum aggressiveness of the drill bit, and
• rotating the rotatable blade into the various cutting positions in response to a result of the comparing of the relative aggressiveness of the drill bit with the target minimum aggressiveness of the drill bit,
• wherein rotating the rotatable blade comprises exchanging the portion of the plurality of cutters that was recessed within the cavity with the remaining portion of the plurality of cutters that was exposed.