Shut down by gas cooler leakFibreoptic cable arrives

Final chapter for old sloggers

person by Kristin Øye Gjerde, Norwegian Petroleum Museum
Production from Edda 2/7 C, Albuskjell 1/6 A and 2/4 F, and Cod 7/11 A ended in 1998. These platforms were converted to a cold phase and waited to be removed.
— Risers on the platform Edda 2/7 C. Photo: Husmo Foto/Norwegian Petroleum Museum
© Norsk Oljemuseum

Meanwhile, they had to be secured and kept under observation to make sure no hazard was posed. That was achieved through remote monitoring of various functions.

Eliminating the need to keep personnel on board, this system covered such aspects as emergency shutdown, fire and gas systems, ventilation, power supply and well status.

historie, siste kapittel for tre travere, 1999,
Ekofisk 2/4-K (The Kilo platform). Photo: Kjetil Alsvik/ConocoPhillips

From mid-May 1999, Ekofisk 2/4 K took over the job of remotely monitoring Edda 2/7 C and Albuskjell 1/6 A. Their process facilities were cleaned and the wells plugged and secured.

Cod 7/11 A – known as the House on the Prairie by those who worked there – also ceased production in 1998 after 22 years on stream.

Work on securing and plugging the Cod wells was completed in August 1999, and the platform was then cleaned and everything in the accommodation not to be used again was transferred to Albuskjell 2/4 F for reuse.

fjerne, Ekofisk-tanken – et ikon som blir stående, Siste kapittel for gamle travere
When the systems are cleaned and the plugging completed, the rig is referred to as cold. Illustration: Erik Moe/Norwegian Petroleum Museum

The final chapter for Cod began on 5 October 1999, when the crew left for good. It remained standing unmanned until the time arrived for its removal.

Power supplies were cut off, and even the last lifeboat station was closed. But the platform still needed electricity during its cold phase to run the navigation lights on board.

These were mandatory to safeguard ship traffic in the area. This power supply was provided by solar panels mounted on the deck. A new communication system allowed the lights to be remotely monitored from the Tananger base.[REMOVE]

Fotnote: Ekofisknytt, no 16, 1999.

Cod 7/11 A, 1977, Oppstart av Cod 7/11 A, historie, forsidebilde,
Cod 7/11 A. Photo: Husmo Foto/Norwegian Petroleum Museum

 

Shut down by gas cooler leakFibreoptic cable arrives
Published 16. September 2019   •   Updated 17. October 2019
© Norsk Oljemuseum
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