US 12,331,612 B2
Shifting sleeve tieback seal system
Rutger Evers, Singapore (SG); Daniel Newton, Singapore (SG); and Brandon T. Least, Carrollton, TX (US)
Assigned to Halliburton Energy Services, Inc., Houston, TX (US)
Filed by Halliburton Energy Services, Inc., Houston, TX (US)
Filed on Sep. 1, 2023, as Appl. No. 18/241,594.
Claims priority of provisional application 63/405,607, filed on Sep. 12, 2022.
Prior Publication US 2024/0084666 A1, Mar. 14, 2024
Int. Cl. E21B 33/12 (2006.01); E21B 23/06 (2006.01); E21B 43/10 (2006.01)
CPC E21B 33/1208 (2013.01) [E21B 23/06 (2013.01); E21B 43/10 (2013.01)] 19 Claims
OG exemplary drawing
 
19. A method, comprising:
running a shifting sleeve tieback seal system into a wellbore toward a liner hanger, wherein the shifting sleeve tieback seal system comprises a body portion, a swellable material disposed about a circumference of the body portion and configured to expand in response to exposure to wellbore fluids, and a sleeve configured to isolate the swellable material from wellbore fluids in a run-in position;
driving the sleeve into the liner hanger to shear at least one fastener holding the sleeve in the run-in position;
moving the sleeve with respect to the body portion, via a hydrostatic assist chamber, from the run-in position to a set position in response to the at least one fastener being sheared; and
expanding the swellable material to seal against a downhole tubular in response to movement of the sleeve exposing the swellable material to wellbore fluids.