SPECIAL REPORT: COILED TUBING-1: BP field tests 16Cr as North Slope work string

Jennifer Y. Julian, Bryan J. McLellan - BP Exploration (Alaska) Inc.,AnchorageJohn R. Martin - Quality Tubing Inc.,HoustonKenneth W. Burke - Schlumberger Well Services, Prudhoe BayBrandon J. McNerlin - BP Angola, Sunbury, England16Cr chrome coiled tubing was introduced in 2003, but its use has been limited to velocity strings in corrosive environments. Questions concerning its feasibility as a work string prompted field testing of a reel of 16Cr on the North Slope, Alaska.Following preliminary laboratory testing, we deployed a QT-16Cr reel and performed a variety of standard coiled-tubing applications daily during a 3-month field trial. We gathered observations and data during the field t...

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