Rosneft, a member of the Sakhalin-1 consortium, reported the completion of a 15,000-m horizontal well from Orlan platform in Chaivo field in the Sea of Okhotsk. It’s the world’s longest well, Rosneft said.
“This is a super-complex well,” Rosneft said. “A number of world records have been set in extended-reach drilling since the start of drilling at Sakhalin-1 project in 2003.”
The Sakhalin-1 consortium has drilled 9 out of 10 of the world's longest wells, Rosneft said.
Sakhalin-1’s extended-reach drilling combines models of drilling parameters with structured well design. Extended reach drilling reduces construction costs for additional offshore structures, pipelines and other infrastructure. It also mitigates environmental impact due to smaller drilling and production footprint.
Chaivo is one of three fields in the Sakhalin-1 project. The Orlan platform is in about 15 m of water.