1. Abicht D, Halvorsen GR, Ramberg RM (2017) Subsea all-electric. Equinor. Offshore Technology Conference, Houston, 1–6
2. Aker Solutions (2019) Umbilicals. Retrieved from https://akersolutions.com/what-we-do/products-and-services/umbilicals/. [Accessed on 4 April, 2020]
3. API (2008) Specification for verification test of wellhead surface safety valves and underwater safety valves for offshore service. API 6AV1, Washington D.C
4. API (2012) Standard for actuator sizing and mounting kits for pipeline valves. API 6DX, 1st edition, Washington D.C
5. API (2018) Specification for wellhead and tree equipment. API 6A, 21st edition, Washington D.C