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Long-Term Performance of a Subsea Wet Insulation Material at 180 °C Continuous Operation Temperature

Picture for Long-Term Performance of a Subsea Wet Insulation Material at 180 °C Continuous Operation Temperature
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Product Number: 51321-16210-SG
Author: Eileen Wan/Espen Ommundsen
Publication Date: 2021
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$20.00
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As subsea oil and gas exploration goes to deeper water depths, there is a greater need for pipeline wet insulation materials capable of withstanding higher operating temperatures, >150 °C. At these extreme temperatures, the list of suitable polymeric materials is limited. One such material has been assessed in long-term tests for 12 months at elevated temperature and pressure in seawater, according to ISO 12736, as well as 12-month nitrogen exposure tests at elevated temperature. The performance of this new material under this harsh exposure regimen is presented and evaluated.

Key words: high temperature, subsea wet insulation, polyphenylene sulfide, exposure testing, long-term performance, HPHT

As subsea oil and gas exploration goes to deeper water depths, there is a greater need for pipeline wet insulation materials capable of withstanding higher operating temperatures, >150 °C. At these extreme temperatures, the list of suitable polymeric materials is limited. One such material has been assessed in long-term tests for 12 months at elevated temperature and pressure in seawater, according to ISO 12736, as well as 12-month nitrogen exposure tests at elevated temperature. The performance of this new material under this harsh exposure regimen is presented and evaluated.

Key words: high temperature, subsea wet insulation, polyphenylene sulfide, exposure testing, long-term performance, HPHT

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