New gas flowing from Trinidad

abarrelfullabarrelfull wrote on 15 Aug 2014 05:54
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28 October 2009

In the waters off Trinidad and Tobago’s southeast corner off the Caribbean Sea, BP started natural gas flowing on 27 October from its fourth clone platform

Savonette platform
Savonette is bpTT’s newest structure in the sea and has production capacity of one billion cubic feet per day. Using a cookie-cutter approach to designing and building offshore platforms allows a short construction time and, because it is done by local company Trinidad Offshore Fabricators, the structures are literally built just on the other side of the island. April 2008 saw the project sanctioned and less than one year later Savonette was installed. Project launch to first gas took just 18 months.
The bpTT clone design model began in 2005 with Cannonball followed by successful cloning of Mango and Cashima platforms, and clearly saves on cost and time and improves efficiency. "The success of standardisation is evident in the improvements made in the whole process, from design to installation," explains Liz Mulliss, project general manager.

There are a few differences between Savonette and its predecessors. The jacket is significantly larger due to the increased water depth – 88 metres (290 feet). In fact, it is the largest ever built in Trinidad. The enduring partnership between bpTT, the designers and builders for all four platforms has made it easier to recognize and implement improvements in the clone process allowing alterations to the clone pattern to be efficient and simple.

Savonette follows the ‘hub and spoke’ design which maximizes the use of bpTT’s existing infrastructure. Production ties into bpTT’s Mahogany B platform via a subsea pipeline, where it is processed and transported through existing pipelines to shore and then on for further processing at facilities on the western side of the island of Trinidad.

All four clone platforms are normally unmanned installations operated remotely and only require occasional day visits for maintenance. Keeping people operating the platforms from a control room helps keep them safe. As for Savonette’s journey to completion, 11 million man-hours were worked during the project without a single day away from work case.


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