Patent ID: 11927067
Assignee: BAKER HUGHES OILFIELD OPERATIONS LLC
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 0:
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.