(Courtesy Aker Options)
FORNEBU, Norway – Aker Solutions has developed a modified workover system that’s stated to allow sooner and less expensive deliberate interventions.
The idea will first be utilized on Equinor’s Visund field within the North Sea.
Workover methods allow protected nicely entry for subsea set up and completion, diagnostics, upkeep, repairs, enhanced manufacturing, and plugging and abandonment.
The operational idea entails delivering the corporate’s multiWOS system by vessel and touchdown it on both a subsea platform or a nicely. The vessel then extracts, and the rig picks up the stack and begins the intervention marketing campaign.
The mobilization of the workover system might be executed nicely prematurely of the intervention actions, therefore the operator can have extra flexibility each earlier than and after operations, because the system might be parked subsea.
In line with the corporate, the primary benefit with this idea in comparison with the extra conventional method is that the system is stored subsea and never taken onboard the rig.
Different benefits embody:
- Use of current multiWOS system
- Modification and re-use of current elements
- Decreased work in ‘purple zone’
- Drastically diminished skidding, dealing with, and lifting on the rig
- Protected and environment friendly operations.
“This challenge has been a joint collaboration between Equinor and Aker Options from the beginning. The brand new intervention idea is quicker, less expensive and safer than conventional workover methods,” stated Andreas Kraabøl, VP Subsea Lifecycle Companies, Norway.
The system and related gear might be modified and delivered within the spring of 2021 to carry out intervention operations on Visund.
Positioned in a water depth of 335 m (1,099 ft), the Visund area consists of 23 Aker Options subsea timber. Interventions will play an more and more necessary position operationally in the longer term for Visund to extend oil restoration, the corporate stated.