Petroleum Development Oman LLC (PDO) installed a 29-m section of alternative borehole liner (ABL) in the Fahud-335 well, 276 m below the 95/8-in. casing shoe, selectively isolating a problematic shale ...
Well casing is the set of concentric steel strings run and cemented in a borehole to provide structural support, isolate formations, and create a pressure-tight conduit for drilling and production. It ...
P.E. Pilkington Conoco Inc. Houston Evaluating cement between two strings of casing can be a problem. The signal from the outer string of casing can interfere with amplitude measurement if the inner ...