World’s deepest well drilled under Sakhalin-1 project

The world’s deepest ERD well (12,700 m) has been drilled within the framework of Sakhalin-1 project, reads the statement of Sakhalin Government’s press center. Wells have been successfully drilled under Sakhalin-1 for 10 years already. In 2013, the Exxon Neftegas drilling team completed two wells, which set two consecutive world records for measured depth. With these accomplishments, currently 8 of the 10 world’s longest wells belong to the Sakhalin-1 Consortium.  The technology used for the wells enables drilling from an onshore-based well site to the oil and gas reservoirs located offshore. A well is usually started vertically and then steered gradually to a horizontal path to tap a subsoil formation containing hydrocarbons.

The Sakhalin-1 is the project operated by Exxon Neftegas Limited. It is a consortium to locate and produce oil and gas on Sakhalin Island and in the Okhotsk Sea from three fields: Chayvo, Odoptu, and Arkutun-Dagi.