Case study: Longest lateral section drilled in 24hrs on the North Slope using at-balance Coiled Tubing Drilling

21st September 2020                 COILED TUBING DRILLING                          

Author: Toni Miszewski

The two wells under consideration in this case study were injection wells. Extended reach laterals in a sand formation were planned with the primary objective being to support production from other wells in the field.  Extended reach was critical for economic viability of the project with horizontal laterals exceeding beyond any length achieved previously. CTD was seen as the best way to drill the reservoir because of cost advantages as well as the ability to drill at-balance using managed pressure drilling to keep the wellbore at a stable bottom hole pressure. The key objective was . . . 

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Image: Nabors CTD-3 

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