Subsea Completion Design for HP/HT Wells

Baker Hughes Drilled North Sea High-Angle Well on Semi-Submersible

The operator wanted to drill, complete and produce high-pressure/high-temperature (HP/HT) standard and extended-reach wells with zero HS&E incidents. The Statoil-operated Kristin HP/HT subsea development is 240 km off Norway in 1,115 ft (340 m) water depth with a 380ºF (170ºC) bottomhole temperature, 13,195 psi (910 bar) bottomhole pressure gas condensate reservoir.

The equipment used included TSM-13.5 downhole safety valve, an SB-3 completion packer, DAB barrier packer, EOFH-ET slickline plugs, and a FLEX-LOCK/ZXP screen/ liner hanger.

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