Get back on planned drilling program and finish the well with an adequate hole size to evaluate potential production zones at TD.
Install a 7-5/8 x 9-5/8 in. SET Openhole Liner (OHL) to isolate higher pressure zones so that mud weight could be reduced to combat lost circulation.
A major operator was sidetracking out of an existing well to a nearby reservoir.The first attempt to sidetrack utilizing a conventional casing design failed to reach the target depth and damaged the 13-3/8 in. casing.
The casing design for a...
Challenge: Redevelop an established Gulf of Mexico deepwater field by accessing additional reserves.
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 this project, the planned 13-3/8 in. conventional casing setting depth could not be reached due to a narrower than planned drilling window. Such an event, along with the uncertainties in deeper sections of the exploratory well, compromised reaching the geological targets with the mandatory...