Abstract:Drilling from a tension leg wellhead platform (TLWP) to targets away from the slot creates several challenges and brings many operational risks that are not always easy to predict. The decision to reduce costs with dry completions, wellheads, and deep-water rig day-rates considerably increases drilling complexity. In this scenario, an involuntary sidetrack incident happened while circulating for hole cleaning below the casing shoe. This left a reservoir exposed in the mother well.
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