Bespoke flow assurance in Nigeria - Vikotherm S1 - Thermal Insulation - Trelleborg Offshore

Subsea Thermal Insulation

Located roughly 60 miles offshore Nigeria, the Erha North phase two development sits at 3,960 feet / 1,200 meters deep and is an extension of the existing Erha subsea system and infrastructure. The existing system is currently producing to the Erha floating production, storage and offloading (FPSO) vessel.

Performance at every level
Appointed by subsea engineering, construction and services company, Subsea 7, Trelleborg was awarded a contract to supply its high temperature thermal insulation material for phase two of the project in YEAR.

Subsea 7 is one of the world’s leading contractors in seabed-to-surface engineering, construction and services to the offshore industry, providing technical solutions to enable the delivery of complex projects in all water depths and challenging environments.

Trelleborg supplied several tonnes of its high temperature advanced silicone insulation solution, Vikotherm™ S1, to the numerous oil and gas flowlines in the field. Manufactured using room temperature vulcanization technology, the coating is ideal for the high 300 °F / 149 °C temperatures required for this project.

Project specific performance
Trelleborg developed a high temperature, microsphere free product to improve overall performance of the insulation system. This provided an added assurance that the product has been installed properly and was fit for purpose; verifying both the cast insulation and substrate.

The product was designed specifically to cater to the harsh environment at the Ehra field, incorporating a unique silicone compound. The system can operate at ocean depths of 9,832 feet / 3,000 meters and temperatures as high as 300 °F / 149 °C, so that the flow of oil and gas is not compromised.
Subsea - Vikotherm S1
“As the offshore industry continues to get more complex, we’re more frequently searching for products which not only meet the specification, but also provide added benefits such as time saving and increased efficiency. Trelleborg’s Vikotherm™ S1 insulation was the ideal choice for the project, as it caters to the water depths and temperatures to guarantee flow assurance.”
Acim Rezig, SCM Engineer at Subsea 7