Controlling lost circulation while drilling
AssigneeSaudi Arabian Oil Company
InventorAbdulrahman K. Aleid
Life of this patent
Estimating the term…
Abstract
A tubular defines a central flow passage. A camera has an aperture and attached to an outer surface of the tubular with the aperture oriented away from the outer surface of the tubular. A lost circulation media reservoir is circumferentially surrounding at least a portion of the outer surface of the tubular. The lost circulation media reservoir is adjacent to the camera. The lost circulation media reservoir includes actuable gates along a periphery of the lost circulation media reservoir. A trigger is communicably coupled with the actuable gates and configured to actuate the actuable gates.
Claims20
A bottomhole assembly comprising:
- a tubular defining a central flow passage;
- a camera having an aperture and attached to an outer surface of the tubular and the aperture oriented away from the outer surface of the tubular;
- a lost circulation media reservoir circumferentially surrounding at least a portion of the outer surface of the tubular, the lost circulation media reservoir being adjacent to the camera, the lost circulation media reservoir comprising actuable gates along a periphery of the lost circulation media reservoir;
- and
- a trigger communicably coupled with the actuable gates and configured to actuate the actuable gates.
A method comprising:
- while drilling a wellbore, encountering a high-loss circulation zone by a bottomhole assembly;
- responsive to encountering the high-loss circulation zone, releasing a first lost circulation media retained within the bottomhole assembly;
- and
- receiving a second lost circulation media, by the bottomhole assembly, from circulation fluid circulated from a topside facility.
A workstring comprising:
- a camera oriented to face a wall of a wellbore, the camera configured to capture pictures of the wall of the wellbore before and after sealing operations;
- a lost circulation media reservoir comprising actuable gate along a periphery of the lost circulation media reservoir, the actuable gate configured to retain or release lost circulation media based upon a position of the actuable gate;
- a liquid sealant reservoir;
- a trigger configured to actuate the actuable gates responsive to a stimulus from a topside facility;
- and
- a drill bit at a downhole end of the workstring.
Dependencies are inferred from the claim text.