US 11,927,067 B2
Shifting sleeve with extrudable ball and dog
Jason Cullum, League City, TX (US); Levi Oberg, Cypress, TX (US); Andres Sosa, Spring, TX (US); and David Rabalais, Sugar Land, TX (US)
Assigned to BAKER HUGHES OILFIELD OPERATIONS LLC, Houston, TX (US)
Filed by Jason Cullum, League City, TX (US); Levi Oberg, Cypress, TX (US); Andres Sosa, Spring, TX (US); and David Rabalais, Sugar Land, TX (US)
Filed on Nov. 30, 2021, as Appl. No. 17/538,915.
Prior Publication US 2023/0167704 A1, Jun. 1, 2023
Int. Cl. E21B 34/14 (2006.01); E21B 33/068 (2006.01); E21B 43/12 (2006.01); E21B 43/26 (2006.01)
CPC E21B 33/068 (2013.01) [E21B 43/12 (2013.01); E21B 43/26 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A method of performing an operation in a borehole, comprising:
seating a ball at a seat member in a flow passage of an inner sleeve, the inner sleeve disposed at a first position within an outer sleeve in a locked configuration of a plug, the outer sleeve includes a key slot therein and a key disposed in the key slot and the inner sleeve includes a recess on its outer surface;
moving, via a fluid pressure at the ball, the inner sleeve to an intermediate position between the first position and a second position to axially align the key slot with the recess to allow the key to collapse into the recess;
moving, via the fluid pressure at the ball, the inner sleeve from the intermediate position to the second position within the outer sleeve to place the plug in an unlocked configuration; and
moving the seat member radially outward via the fluid pressure at the ball to open the flow passage with the inner sleeve at the second position.