Norwegian oil giant Equinor has produced a video showing the installation process for its Troll C Gas module at one of the biggest ever North Sea finds.
The Troll development could yield 2.2 billion barrels of oil equivalent.
Equinor filed its £700-million-plus plans for further developing the huge Troll field off Norway earlier this month.
Lying 40 miles west of Kollsnes, near Bergen, the field is expected to produce beyond 2050.