US 12,326,062 B2
Repairing wellbores with fluid movement behind casing
Mohamed M. El Nekhily, Al Khobar (SA); Khalsa Kanwal Bahadur, Al Khobar (SA); and Ibrahim A. Al-Obaidi, Al Khobar (SA)
Assigned to Saudi Arabian Oil Company, Dhahran (SA)
Filed by Saudi Arabian Oil Company, Dhahran (SA)
Filed on Feb. 23, 2024, as Appl. No. 18/585,910.
Application 18/585,910 is a division of application No. 17/712,799, filed on Apr. 4, 2022, granted, now 11,939,835.
Prior Publication US 2024/0191595 A1, Jun. 13, 2024
Int. Cl. E21B 33/14 (2006.01); E21B 23/06 (2006.01); E21B 29/00 (2006.01)
CPC E21B 33/14 (2013.01) [E21B 23/06 (2013.01); E21B 29/002 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A scab liner arrangement comprising:
a milling assembly configured to mill a section of casing within a wellbore;
an underreaming assembly configured to underream the section of casing through to a next layer of casing after the milling assembly mills the section of casing;
a settling fluid configured to be squeezed into the section, the setting fluid configured to penetrate micro-channels exposed by the milling assembly and the underreaming assembly;
a scab liner comprising a central tubular, the scab liner configured to be installed over the section; and
an expandable packer encircling the scab liner, the expandable packer configured to expand and seat against the outer casing within the wellbore.