Publications

Splitter wellheads allow several wells to be drilled from the same conductor pipe, which can bring significant benefits for conventional offshore developments by reducing the size and/or number of wellhead platforms or by giving access to additional reserves from existing platform slots.In April 2003, Cameron dual 9 CSW were successfully installed by Total E&P Indonésie on Peciko offshore gas field development as the first worldwide application of a 9 x 10,000 psi dual splitter wellhead and 4-1/2 x 6,500 psi Xmas-Tree.Thanks to this technology, 120 million USD could be saved on surface facilities by reducing the number of wellhead platforms from 10 to 7 while targeting the same gas reserves. Drilling and completion costs remained in line with initial plans, as the savings made with the slimmed down well architectures were counterbalanced by the higher well departures induced by the reduced number of platforms.To the end of 2004, 16 splitter wells (8 sets of dual CSW) have been drilled and completed without any major technical problem, 14 of them ahead of planning and below budget.