Self cleaning fracking plug and method

A frac plug comprising:

• a mandrel having an upper end, a lower end, and an outer surface;
• a sealing member operatively positioned about the outer surface of the mandrel, the sealing member having an upper end and a lower end;
• a first cone operatively positioned about the outer surface of the mandrel, the first cone having a first end and a second end, the first end of the first cone having an outer diameter greater than an outer diameter of the second end, the first end of the first cone abutting the upper end of the sealing member;
• a second cone operatively positioned about the outer surface of the mandrel, the second cone having a first end and a second end, the first end of the second cone having an outer diameter greater than an outer diameter of the second end of the second cone, the first end of the second cone abutting the lower end of the sealing member;
• a first slip ring operatively positioned about the outer surface of the mandrel, the first slip ring having a first end and a second end, the first end of the first slip ring positioned adjacent to the second end of the first cone;
• a second slip ring operatively positioned about the outer surface of the mandrel, the second slip ring having a first end and a second end, the first end of the second slip ring positioned adjacent to the second end of the second cone;
• and
• one or more containers operatively positioned about the outer surface of the mandrel, each of the one or more containers having an interior configured to contain a chemical substance.

A method of setting and removing a frac plug from a hydrocarbon well comprising the steps of:

• a) lowering a frac plug in a wellbore to a selected location, the frac plug comprising:
• a mandrel having an upper end, a lower end, and an outer surface;
• a sealing member operatively positioned about the outer surface of the mandrel, the sealing member having an upper end and a lower end;
• a cone operatively positioned about the outer surface of the mandrel, the cone having a first end and a second end, the first end of the cone having an outer diameter greater than an outer diameter of the second end, the first end of the cone abutting either the upper or lower end of the sealing member;
• a slip ring operatively positioned about the outer surface of the mandrel, the slip ring having a first end and a second end, the first end of the slip ring positioned adjacent to the second end of the cone;
• and a first container operatively positioned about the outer surface of the mandrel, the container having an interior containing a chemical substance;
• b) moving the sealing ring over the cone to displace the sealing ring in an outward direction to make contact with a wall of the well;
• c) perforating the wall of the well and a surrounding formation;
• d) injecting fracking fluid into the wellbore to fracture the perforated formation;
• and
• e) milling the frac plug to cause a breakup of the frac plug into small pieces, a rupture of the container, and a release of the chemical substance from the interior of the container into the wellbore.