Li, H; Dang, X; Zhu, K; Ni, Y
There are 32 arctic offshore oil/gas projects already in operation or having confirmed development plan. Seven offshore engineering patterns have been applied, including "gravity based structure (GBS) - shipping pipeline", "subsea production system - onshore terminal", "artificial island - shipping pipeline", "jacket platform -shipping pipeline - onshore terminal", "floating platform - subsea system", "FPSO - subsea system" and "offshore oil produced from land". Gravity based structure is the most widely used production platform, followed by FPSO/FSO, subsea production system, floating platforms and artificial islands. Arctic offshore wells have been mainly drilled from anti-ice floating drilling platform, ice-resistant fixed drilling platform and artificial island. In future, arctic petroleum exploration & production will move to deeper water area; natural gas development will play more important role. In arctic offshore E&P area Tremendous facilities and technologies will be developed and applied, including anti-ice floating concrete Spar, fully enclosed production platform, "subsea factory", round semisubmersible drilling platform, seafloor drilling rig, GBS LNG facility, free hanging solid ballast semi (FHSB Semi) platform and so on. Advantages & disadvantages, application conditions of main arctic offshore engineering patterns, facilities & technologies are described, which shall be helpful for arctic project investment opportunity study, screening and evaluation. © 2015, Offshore Technology Conference.