Working for BP Trinidad and Tobago, Heerema Marine Contractors (HMC) reported its semi-submersible crane vessel Thialf successfully installed the Cassia Compression (Cassia C) platform located off Trinidad’s east coast
A large exporter of LNG, Trinidad and Tobago is the largest oil and gas producer in the Caribbean. The Cassia C platform will enable BP to access and produce low-pressure gas reserves from currently producing fields in the Greater Cassia area, maximising recovery from these existing resources. Projects such as Cassia C are important to boost the country’s dwindling gas production. Shell reported in July producing its first gas from Project Barracuda in the East Coast Marine Area to support LNG production at Atlantic LNG.
Heerema installed the Cassia C jacket in 2020 with the world’s largest semi-submersible crane vessel Sleipnir, and on 27 July, finalised completion activities for the installation of the topside, bridge and flare structures. Additionally, Heerema transported the structures, and they arrived in Trinidad and Tobago on 15 July from the Altamira fabrication yard.
The topside, weighing 7,800 tonnes, was installed first with the other structures following. The next step in the project will be the hook-up and commissioning of the Cassia C platform.
HMC said Thialf will “now return to the North Sea to continue a busy summer season.”
BP Trinidad and Tobago project general manager Michael Daniel said “This is a great achievement for the teams in Mexico and Trinidad and Tobago which had to work through challenges brought about by Covid-19. The Cassia Compression project will be a major component of improving our production deliverability and the installation of the topsides brings us one step closer to first gas.”
Gas production from the Greater Cassia Area will be routed to the Cassia C platform for compression before being transported via the adjacent existing Cassia B platform. Cassia C will be located 57 km off the southeast coast of Trinidad. The platform will have a throughput capacity of 1.2Bn standard cubic feet of gas a day. First gas from the platform is expected in 2022.
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