US 12,392,213 B2
Method for setting a frac plug with a tubular metal seal
Brian Wilkinson, Duncan, OK (US); and Loren Swor, Duncan, OK (US)
Assigned to Paramount Design, LLC, Duncan, OK (US)
Filed by Paramount Design LLC, Duncan, OK (US)
Filed on Mar. 9, 2022, as Appl. No. 17/690,635.
Claims priority of provisional application 63/158,475, filed on Mar. 9, 2021.
Prior Publication US 2022/0290525 A1, Sep. 15, 2022
Int. Cl. E21B 33/128 (2006.01); E21B 23/06 (2006.01); E21B 33/12 (2006.01)
CPC E21B 33/128 (2013.01) [E21B 23/06 (2013.01); E21B 33/1208 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A method, comprising:
deploying a plug assembly into a casing within a drilled hole, the plug assembly comprising a tubular metal seal having an interior, an exterior, a sidewall extending between the interior and the exterior, a proximal end, a distal end, and a length extending between the proximal end and the distal end, the interior at the proximal end having a tapered interior portion extending inwardly toward the distal end along the length;
deploying a setting tool into the casing within the drilled hole, the setting tool having a first end having a tapered exterior portion;
expanding the tubular metal seal radially to a first radial diameter with the setting tool by moving the setting tool longitudinally such that the tapered exterior portion of the first end of the setting tool engages the tapered interior portion of the proximal end of the tubular metal seal;
expanding the tubular metal seal radially to a second radial diameter, such that the exterior of the tubular metal seal engages an interior of the casing, by pumping fluid into the casing, the fluid providing radial pressure against the interior of the tubular metal seal, thereby preventing fluid flow past the exterior of the tubular metal seal in the casing; and
removing the setting tool from the casing.