US 10,890,045 B2
Plugs for isolating portions of wellbores
Graham Chenault, Krum, TX (US); Kelly Kykkanen, Sylvan Lake (CA); Anthony Honke, Red Deer (CA); Tanner Ingram-Johnson, Red Deer (CA); and Kenneth Stokley, Victoria, TX (US)
Assigned to Cerca Downhole Technologies LLC, Sanger, TX (US)
Filed by Cerca Downhole Technologies LLC, Sanger, TX (US)
Filed on Jan. 29, 2019, as Appl. No. 16/261,266.
Prior Publication US 2020/0240233 A1, Jul. 30, 2020
Int. Cl. E21B 33/128 (2006.01); E21B 33/129 (2006.01); E21B 33/126 (2006.01); E21B 33/12 (2006.01); E21B 23/06 (2006.01); E21B 43/26 (2006.01)
CPC E21B 33/128 (2013.01) [E21B 23/06 (2013.01); E21B 33/126 (2013.01); E21B 33/1208 (2013.01); E21B 33/1291 (2013.01); E21B 43/26 (2013.01)] 24 Claims
OG exemplary drawing
 
1. A plug for isolating a portion of a wellbore, the plug comprising:
a tubular conduit having a first end and a second end;
a cap disposed over the first end of the tubular conduit and coupled thereto, the cap configured to mate with a wireline adapter kit of a perforating string;
a guide shoe disposed over the second end of the tubular conduit and coupled thereto, the guide shoe configured to move along the tubular conduit from an unset position, away from a cap, to a set position, toward the cap;
a gripping assembly disposed around the tubular conduit between the cap and the guide shoe and coupled to the guide shoe, the gripping assembly configured to expand outward from the tubular conduit in response to the guide shoe moving into the set position; and
a sealing assembly disposed between the cap and the gripping assembly and comprising:
a first sealing band disposed around the tubular conduit and having an annular lip,
a second sealing band disposed around the first sealing band and defining an angled channel with a tapered end of the cap, the annular lip of the first sealing band extending through the angled channel, the second sealing band configured to expand outward from the tubular conduit in response to the guide shoe moving into the set position.