Back to search

DEMO2000-Prosj.ret tekn.utv. petro.virk

eVXT next generation subsea

Alternative title: eVXT neste generasjon subsea ventiltre

Awarded: NOK 16.0 mill.

Project Manager:

Project Number:

327596

Application Type:

Project Period:

2021 - 2024

Partner countries:

In the petroleum sector it is a increasing global focus on technologies that will contribute to reduced environmental foot prints, reduced total installed cost and to increase the use of digital technologies for cost savings. This relates both to the manufacturing phase and the operational phase. The developments and work packages described is considered the final closing of gaps and covers the next and most important step towards the full electrification of a subsea production system. The all electric XT for subsea use will contribute in the following ways - No discharge of hydraulic fluids to seawater - System solution will improve HSE and reduce CO2 emissions - Cost reduction by design for multi user platform, long step-outs, deep water, water injectors oil, and gas fields - Increased use of digital technology, potential for cost reduction in both manufacturing and operational phase - Subsea all electric XT is ideal for unmanned platforms, no HPU to maintain.

This application covers development and qualification of a subsea all electric VXT Applications so far have covered a limited part of the subsea system, the non-safety critical valves. Over the years, several concepts and attempts have addressed the safety critical functionality; hybrid electrohydraulic concepts, distributed all-electric concepts with redundant local batteries, etc. It is only lately, fueled by developments in other industries, that core technology, safety solution and customer acceptance has been granted, resulting in a concept that is cost effective compared with todays system, without taking infrastructure simplifications into account. This application will build onto the development performed and demonstration on a component level in the ongoing “all-electric” JIP, being executed in collaboration with Chevron, Equinor and Total. This collaboration has contributed to secured a global acceptance for the proposed technologies. The development program covered by this application will include R&D and certification activities, engineering for design and manufacture and a final EFAT of a complete “all-electric” subsea XT system, later denoted eXT. This comprises: - Final qualification of a battery powered software based control and safety system according to SIL 2, with final validation and verification. This shall meet the requirements of a global market. - Final Certification activities towards the requirements of Petroleum Safety Authority (PSA) - Building of a standardized modular design eXT compliant with NCS requirements - Full EFAT of the eXT - System test towards new all electric downhole equipment for safety valves - Demonstration of the enhancements in digital monitoring this technology offers It is the intention that the eXT following the testing will be refurbished and installed as the first unit in a producing subsea field where the all-electric advantages are utilized. Deliverable is a fully configured eXT.

Funding scheme:

DEMO2000-Prosj.ret tekn.utv. petro.virk