Enabling Operations in Extreme Environments with Jumper on Demand Solution

Abstract Strohm's thermoplastic composite pipe (TCP) Jumpers are a non-metallic, durable solution for the offshore industry. The "Jumper on Demand" (JoD) concept, enabled by the technology's ability to be shipped in long continuous lengths, is proven to reduce the carbon footprint of pipeline infrastructures by more than 50%. The present paper presents its application towards an insulated production solution for temperatures up to 200°F and the testing carried out to confirm the product viability for these extreme temperatures. Requirements for an optimal insulation solution for TCP are not limited to reaching a certain U-value. Because TCP is relatively light, the on bottom stability of the system must also be taken into account. Furthermore, the insulation layer should not negatively impact the installation advantages of the TCP jumper and specifically the ability to install the pipeline using a subsea pallet. In other words, the optimal insulation solution has to be flexible and easy to install - which are key features of the TCP Jumpers - and must have sufficient submerged weight when delivering the required insulation properties. An insulation solution based on polyurethane half shells, with integrated ballast, was selected and further optimised during detailed engineering. In alignment with the standard for TCP (DNV ST-F119), a key element of the qualification was to prove predictability of the system and validate its performance. U-values were measured on bare TCP and on TCP with insulation. In both cases, during the test conditions, the measured U-value was found to be very close to the calculated values, therefore proving its predictability and validating its performance. In dry conditions the measured U-value was 1.0 W/m2K, corresponding to a U-value of 3.9W/m2K in submerged condition. This TCP technology has a growing reputation across the industry and is regarded as a ‘breakthrough’ technology. A prime example was its recent deployment to ExxonMobil's Liza field for water alternating gas (WAG) injection. The addition of external insulation and the ability to withstand temperatures of up to 200°F, enables deployment of TCP Jumpers to production Jumpers in hotter environments.