US 12,392,236 B2
Pipe drifting in wells
Abdullrohman Khaled Alarfaj, Dammam (SA); Ali Al-Shaikh, Dhahran (SA); and Mohammad Abdullah Alkhateeb, Dammam (SA)
Assigned to Saudi Arabian Oil Company, Dhahran (SA)
Filed by Saudi Arabian Oil Company, Dhahran (SA)
Filed on Feb. 21, 2023, as Appl. No. 18/171,947.
Prior Publication US 2024/0280013 A1, Aug. 22, 2024
Int. Cl. E21B 47/08 (2012.01); G01B 5/12 (2006.01)
CPC E21B 47/08 (2013.01) [G01B 5/12 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method comprising:
lowering a drift bar into a well formed in a subterranean formation, the drift bar having a density less than a density of a wellbore fluid residing in the well;
lowering a tubular into the well below a surface level of the wellbore fluid residing in the well, wherein the tubular defines an inner bore having an inner diameter that is greater than an outer diameter of the drift bar, and the drift bar is positioned to pass through the inner bore of the tubular as the tubular is lowered into the well;
after the tubular is positioned below the surface level, detecting an absence or presence of the drift bar floating at the surface level; and
determining an absence or presence of a restriction in the inner bore of the tubular in response to detecting the presence or absence, respectively, of the drift bar floating at the surface level.