An operator drilling a sub-salt exploration deepwater well in Gulf of Mexico, experienced an unstable wellbore at the base of the salt; which resulted in setting the 9-7/8 in. liner 3,400 ft higher than originally planned.
In exploratory wells, maintaining hole size is critical due to deeper uncertainties, such as unknown pressure regimes. For this reason, the operator needed a solution that would preserve hole size while providing greater collapse properties than standard SET systems.
Tuesday, March 13, 2012
North America, USA, GOM
Additional Document Information
Enable planned completion, Maximize ID and TD, Evaluation enhancement, Reach planned TD