ABL® Alternative Borehole Liner Expandable
Liner System

Zonal isolation without loss of hole size

The ABL alternative borehole liner is slotted tubular expandable technology that provides an attractive, cost-effective solution in the drilling phase. The ABL system significantly reduces drilling spend by isolating problem zones with no loss of hole size.

Plan into your well design as a contingency: Use the ABL system to solve a suspected drilling problem. Remove the other “standard” contingency casing strings from the drilling plan where the ABL system is deemed appropriate.

Run through previous casing and expand: Unlike conventional casing, the ABL system can be run through the previous casing and then expanded across the problem zone without further telescoping of the well. Drilling operations can continue with the same bit size, which permits drilling of the subsequent intervals—and ultimately the reservoir—with no loss of hole size. The end result is improved well productivity.

Solid advantages and benefits

• Running tool helps achieve one-trip deployment and expansion.
• ETC^™ expandable top connector interfaces between the running tool and the ABL string.
• Special expandable connection facilitates handling and quick makeup of joints.
• The ABL system is superior to conventional means for meeting drilling challenges such as lost-circulation or sloughing-shale zones.

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