US 12,071,830 B2
Wellbore intervention systems and related methods of repairing cement failures
Mahmoud Adnan Alqurashi, Dhahran (SA); and Ahmed A. Alkuhaili, Al Khobar (SA)
Assigned to Saudi Arabian Oil Company, Dhahran (SA)
Filed by Saudi Arabian Oil Company, Dhahran (SA)
Filed on Sep. 6, 2022, as Appl. No. 17/903,865.
Prior Publication US 2024/0076949 A1, Mar. 7, 2024
Int. Cl. E21B 33/14 (2006.01); E21B 33/12 (2006.01); E21B 47/117 (2012.01)
CPC E21B 33/12 (2013.01) [E21B 33/14 (2013.01); E21B 47/117 (2020.05)] 11 Claims
OG exemplary drawing
 
1. A wellbore intervention system for repairing a wall failure within a wellbore, the wellbore intervention system comprising:
a first fluid conduit installed to an outer surface of a casing string within the wellbore, the first fluid conduit comprising:
a tube to which a remedial substance is delivered;
a plurality of ports arranged along a length of the tube for communicating the remedial substance to the wall failure in a cement region along the wellbore; and
a one-way valve for preventing a reservoir fluid at the wall failure from flowing in an uphole direction through the tube; and
one or more second fluid conduits, wherein the first fluid conduit and the one or more second fluid conduits are spaced apart around the outer surface of the casing string.