Patent ID: 11913298
Assignee: SAUDI ARABIAN OIL COMPANY
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 12:
13. A method for milling a tubular in a wellbore, the method comprising:
disposing a well tool in a wellbore, the well tool comprising a well tubing having a circulation fluid pathway through the well tubing;
milling the tubular in the wellbore with a first mill bit of the well tool until the first mill bit is at least partially consumed, the first mill bit being coupled to the well tubing proximate to a first longitudinal end of the well tubing, the well tool comprising a first circulation sub at the first mill bit;
after milling the tubular until the first mill bit is at least partially consumed, lowering the well tool into the wellbore to dispose the first mill bit within the tubular; and
after lowering the well tool, milling the tubular in the wellbore with a second mill bit of the well tool, the second mill bit being coupled to the well tubing at a location longitudinally uphole of the first mill bit, the well tool comprising a second circulation sub at the second mill bit, wherein, when the first mill bit mills the tubular in the wellbore, the second mill bit is outside of the tubular.