Patent ID: 11905791
Assignee: SAUDI ARABIAN OIL COMPANY
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 8:
9. The method of claim 6, wherein the valve assembly further comprises an internal locking profile on an inner surface of the valve central bore, and wherein the method further comprises:
after rupture of the rupture disc, lowering a retrieval tool into the tubular string towards the drill bit and at least partially into the valve central bore, the retrieval tool comprising retrieval tool dogs configured to lock into the internal locking profile of the valve assembly;
applying, by the retrieval tool, sufficient upward force to shear the valve body setting dogs;
pulling, with the retrieval tool, the valve assembly from the landing sub in an uphole direction away from the drill bit, thereby retrieving the valve assembly from the tubular string; and
after the retrieving, continuing drilling operations.