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Onshore Advances

Jellison: Challenging shale wells require creative pipe, drill string solutions

When typical wells in the Bakken Shale are 17,000-ft MD, 11,000-ft TVD with a 6,000-ft horizontal reach, demands on drill pipe become significantly higher, Michael Jellison, NOV Grant Prideco, said at the 2013 SPE/IADC Drilling Conference & Exhibition on 5 March in Amsterdam. “It pushes the drilling equipment and rig crews beyond the requirements of typical onshore well construction projects.” Further, these wells can have high bottomhole formation temperatures that, in some cases, approach...

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