US 12,338,715 B1
Cleaning and inspecting a wellbore
Malki Bandar, Dammam (SA); Humood Malik, Saihat (SA); and Miguel Augusto Avila Romero, Dhahran (SA)
Assigned to Saudi Arabian Oil Company, Dhahran (SA)
Filed by Saudi Arabian Oil Company, Dhahran (SA)
Filed on Dec. 20, 2023, as Appl. No. 18/390,319.
Int. Cl. E21B 37/00 (2006.01); E21B 47/002 (2012.01); E21B 47/26 (2012.01)
CPC E21B 37/00 (2013.01) [E21B 47/002 (2020.05); E21B 47/26 (2020.05)] 15 Claims
OG exemplary drawing
 
1. A wellbore cleaning tool for cleaning and inspecting a wellbore, the wellbore cleaning tool comprising:
a jetting sub-assembly comprising:
a hollow cylinder defining a first inner void; and
a plurality of jetting nozzles fluidly coupled to the first inner void, the plurality of jetting nozzles oriented to direct a fluid from the first inner void to a space outside the wellbore cleaning tool;
a reverse circulation sub-assembly coupled to the jetting sub-assembly, the reverse circulation sub-assembly comprising:
a barrel defining a second inner void and a third inner void fluidly decouplable from the second inner void, the barrel comprising a first end defining a first fluid port and a second end opposite the first end, the second inner void and the third inner void fluidly couplable to the first inner void of the reverse circulation sub-assembly;
a first plurality of outlet ports extending through the barrel from the second inner void to the space outside the wellbore cleaning tool;
a second plurality of outlet ports extending through the barrel from the third inner void to the space outside the wellbore cleaning tool;
a second fluid port configured to control fluid flow between the space outside the wellbore cleaning tool and the second inner void; and
a third fluid port configured to control fluid flow through the second inner void fluidly to the jetting sub-assembly; and
a guide shoe sub-assembly comprising a camera, the guide shoe sub-assembly positioned at a downhole end of the wellbore cleaning tool.