Patent ID: 8905147

Claim:
A method of removing a wellbore isolation device comprising: contacting or allowing the wellbore isolation device to come in contact with an electrolyte, wherein the wellbore isolation device comprises: (A) a first material, wherein the first material: (i) is a metal or a metal alloy; and (ii) is capable of at least partially dissolving when an electrically conductive path exists between the first material and a second material and at least a portion of the first and second materials are in contact with the electrolyte; and (B) the second material, wherein the second material: (i) is a metal or metal alloy; and (ii) has a greater anodic index than the first material, wherein the first material and the second material are nuggets; and allowing at least a portion of the first material to dissolve, wherein the at least a portion of the first material dissolves in a desired amount of time, wherein any distance between the first and second materials is selected such that the at least a portion of the first material dissolves in the desired amount of time.