subsea operations

New project looks at renewables for subsea power

Mocean Energy collaborates with Chrysaor, subsea energy storage company EC-OG and AUV firm Modus in a project to look at using renewables for subsea power. The project, funded by the partners together with the Oil and Gas Technology Centre (OGTC), will look to use Mocean Energy’s Blue Star wave energy converter and EC-OG’s HALO subsea energy storage system to power subsea tiebacks or residential AUVs.

Depending on the industry feedback, the partners will proceed with a technology field trial...

https://safety4sea.com/new-project-looks-at-renewables-for-subsea-power/

Oil and gas players join forces to qualify subsea gas separation

A leading group of oil and gas operators have teamed up on a joint industry project with the aim of making subsea gas separation a reality. Subsea gas separation has the potential to make CO2-rich gas fields commercially viable.

As explained, using CO2 injection to increase recovery rates in offshore oil and gas fields can improve the economics of a field significantly.

However, so far, the separation of ‘back-produced’ CO2 from the well-stream has been considered carried out on an existing...

https://safety4sea.com/oil-and-gas-players-join-forces-to-qualify-subsea-gas-separation/

Equinor to install wireless underwater intervention drone

Equinor, on behalf of the Njord licence, has awarded Saipem a subsea service contract using a wireless underwater intervention drone and a ROV. The 10-year contract, with five 2-year options for additional extension is worth an estimated EUR 40 million.

This contract which will make Equinor the first user of such technology, is estimated to be completed and put into production in 2020; at the time the Njord field resumes production in the Norwegian Sea.

Anders Opedal, executive vice president,...

https://safety4sea.com/equinor-to-install-wireless-underwater-intervention-drone/

How important is subsea inspection, maintenance, and repair for equipment

ABS published an advisory addressing the importance of subsea inspection, maintenance, and repair (IMR). In the advisory it discusses options for damaged equipment and the procedure for life extension assessments.

The IMR aspects of the subsea integrity management provide detailed methods and action items for managing the integrity of each system or components of equipment. The subsea integrity management process also explains the benefits of cost savings, efficiency in repairs, and detailed...

https://safety4sea.com/how-important-is-subsea-inspection-maintenance-and-repair-for-equipment/

ABS: Challenges for subsea processing systems

Deepwater production remains an essential part of the global energy mix and economically viable projects continue to progress and subsea processing systems are increasingly being considered as a cost-effective solution for both brownfield and greenfield developments. In this regard, an advisory by ABS seeks to support the offshore industry in advancing the development of subsea processing technologies and their implementation.

The benefits of an SPRS include the potential for reducing CAPEX and...

https://safety4sea.com/abs-challenges-for-subsea-processing-systems/

Preventing subsea cables claims against fishing vessels

The Shipowners Club said it has encountered eight damage to property claims allegedly caused by the snagging of fishing gear on subsea cables over the last two years. In this regard, Nicholas Kazaz, a commercial dispute resolution lawyer at international law firm Holman Fenwick Willan (HFW), shared his views on best practices for operators and fishing vessel owners to minimize the risk of cable damage.

Although the number of claims is reasonably low, due to the nature of the property suffering...

https://safety4sea.com/preventing-subsea-cables-claims-against-fishing-vessels/