Equinor & Total are developing an All-Electric Subsea (AES) to replace existing electrohydraulic systems for a standardized water depth independent VXT system. This system will fit the "Subsea Factory" development by Equinor where electric actuation of chokes, manifold and process valves already are implemented.

Several development programs are underway with SPS contractors and technology frontrunners in the industry of subsea electrification. This in order to meet the need for new flexible and cost-efficient subsea production system (SPS) with increased safety level and enhanced condition monitoring facilities.

Method/Procedure/Process

The strategy for the AES initiate is develop SPS vendors in order to establish cost effective solutions and standardisation of products and interfaces.

Develop a joint operator specification targeted for international use.

The AES development program incorporates a system approach covering topside, SPS, downhole applications etc. The intention is to ensure that the advantages with an all-electric approach is utilised for all aspects, i.e. with respect to cost, project execution, operational flexibility, standardization.

Results / Conclusions

This paper will present the current status of the AES development covering:

  • The fundamental features and the potential of the All Electric technology and concepts

  • Status of the all-electric with respect to technology qualification

  • The activities undertaken to close the technology gaps

  • The implementation of all electric SPS solutions

  • Joint operator specification to ensure uniform standardization approach

Keywords:
valve control, reduction, valve, subsea processing, requirement, actuator, architecture, production system, equinor, subsea system
Subjects:
Offshore Facilities and Subsea Systems, Subsea production equipment, Subsea processing
This content is only available via PDF.
2020. Offshore Technology Conference
You can access this article if you purchase or spend a download.