Zonal isolation device with expansion ring

A method comprising:

• inserting into a wellbore a zonal isolation device disposed on a setting tool adapter kit comprising a mandrel, wherein the zonal isolation device comprises:
• a sealing element comprising a deformable material and an inner bore;
• an expansion ring movably disposed within the inner bore of the sealing element;
• a wedge engaged with a downhole end of the sealing element;
• an anchoring assembly engaged with the wedge, wherein the anchoring assembly comprises an expandable collar with one or more scarf cuts, wherein the one or more scarf cuts extend between a first end and a second end of the expandable collar with an angle relative to the first end, wherein each of the one or more scarf cuts is a spiral or helically extending cut slot through a body of the expandable collar;
• and
• an end element adjacent the anchoring assembly and detachably coupled to the mandrel;
• and
• actuating to pull upwardly on the mandrel, wherein the upward movement of the mandrel longitudinally compresses the zonal isolation device, causing the expansion ring to axially move relative to the sealing element and radially expand the sealing element into a sealing engagement with a downhole surface.

A zonal isolation system, comprising:

• a setting tool adapter kit comprising a mandrel;
• a sealing element disposed on the mandrel for sealing engagement with a downhole surface;
• an expansion ring movably disposed on the mandrel and engaged with the sealing element;
• a wedge disposed on the mandrel;
• and
• an anchoring assembly disposed around the mandrel for locking engagement with a downhole surface, wherein the anchoring assembly comprises an expandable collar with one or more scarf cuts, wherein the one or more scarf cuts extend between a first end and a second end of the expandable collar with an angle relative to the first end, wherein each of the one or more scarf cuts is a spiral or helically extending cut slot through a body of the expandable collar.