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US 2024/0191595 A1Published application
Repairing wellbores with fluid movement behind casing
AssigneeSaudi Arabian Oil Company
InventorsMohamed M. El Nekhily, Khalsa Kanwal Bahadur, Ibrahim A. Al-Obaidi
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Abstract
A section of casing within a wellbore is milled. After milling the section of the wellbore, the section of the wellbore is underreamed through to a next layer of casing. A setting fluid is squeezed into the section. The setting fluid penetrates micro-channels exposed by the milling and underreaming A scab liner is installed over the section. The scab liner is secured within the wellbore.
Claims2
A scab liner arrangement comprising:
- a central tubular;
- an outer casing installed within a wellbore;
- and
- an expandable packer encircling the central tubular, the expandable packer configured to expand and seat against the outer casing within a wellbore.
1 more element
Dependencies are inferred from the claim text.