Preserve hole size by implementing a contingency plan that included two SET® solid expandable liners and one conventional API liner run below the well’s planned 11-7/8 in. drilling liner.
In the Utica Shale, an Operator drilled three wells and experienced loss zones and formation integrity issues.
A gas production well had been plugged and abandoned since it was first drilled in 2008 after a hole in the 9-5/8 in. production liner was discovered, through which fluid leaked into the formation. Previous attempts to isolate the damaged casing through cement squeezing had proven unsuccessful...
A major Operator in the North Sea required isolation of a high pressure gas-bearing zone to enable safe drilling and logging of the reservoir section, as well as, a solution to isolate a leaking stage tool in the 9-5/8 in. base casing.
A Norwegian Sea Operator was unable to drill into a depleted reservoir with a planned 12-1/4 in. BHA, which left a short section of shale cap rock that needed to be isolated to enable use of water-based mud as the reservoir drill fluid.
Applying solid expandable technology in existing storage wells for sealing and repairing corroded or damaged casing allows for maintaining the largest internal diameter possible while ensuring sufficient throughput capacity. This is important in meeting...