High performance coil-tubing drilling develops shallow North Slope heavy oil

Based on a presentation to the International Association of Drilling Contractors and Society of Petroleum Engineers drilling conference, Dallas, Feb. 26-28, 2002.A multidiscipline team, assembled by BP Exploration (Alaska) Inc., completed a successful four well, coil-tubing drilling (CTD) pilot project to drill long horizontal multilateral sidetracks into the Milne Point Schrader Bluff field's shallow, heavy-oil reserves on Alaska's North Slope.With drilling rates routinely in excess of 250 fph, the project demonstrated that coiled tubing could quickly drill through-tubing laterals longer than 2,500 ft into the sandstone reservoirs, delivering good incremental oil production rates...

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