Deltares Delivers Borssele Substations Scour Protection Design

Deltares has worked with HSM Offshore on the updating of the scour protection design for the Borssele Alpha & Beta offshore high-voltage substation (OHVS) platforms that connect the wind farms in the Borssele Wind Farm Zone (Netherlands) to the grid.

Deltares performed model tests in 2016 to investigate scour development and conceptual scour protection for the platforms commissioned by TenneT. The contract for the construction and installation of both platforms was awarded to HSM Offshore in 2017 and Deltares was asked to help with the detailed scour protection designs for these platforms.

“Using the knowledge from the earlier model tests and our experience with similar structures in the field, an optimal scour protection layout is developed,” says Hendrik Jan Riezebos, offshore expert at Deltares. “This saved HSM Offshore the exercise of performing additional model tests, and furthermore provided input on secondary effects like edge scour and the effect the installation vessel’s spud can footings.”

“HSM Offshore has a long and extensive track record with EPCIC contract based projects for the Upstream Offshore Energy sector and are continuously expanding the scope of their projects to be in a position to offer full turnkey solutions to their clients,” says Jannes Kinds, project manager HSM Offshore. “Deltares has provided us with a valuable service, which allows us to mitigate the associated risks and perform the project in a safe and cost effective manner.”

The installation of the Borssele Alpha foundation is planned for the second half of 2018 and the full OHVS platform is scheduled for completion in 2019. Borssele Beta is planned for 2020.

Share this article

Follow Subsea World News


<< Oct 2019 >>
30 1 2 3 4 5 6
7 8 9 10 11 12 13
14 15 16 17 18 19 20
21 22 23 24 25 26 27
28 29 30 31 1 2 3

6th Offshore Well Intervention Conference Gulf of Mexico

The Offshore Well Intervention Gulf of Mexico conference (OWI GOM) is returning to Houston, Texas for its sixth year on Wednesday 20 – Thursday 21 November.

Featuring Anadarko, BP, Shell, Chevron, BHGE and Oceaneering, the conference aims to help operators transition to the latest compliance updates, WI systems and business models that enhance safety, quicken well access and improve commerciality.

Across two days, more than 200 delegates, 15 exhibitors and 30 speakers will network together and create solutions to some of the most pertinent industry challenges right now, through a conference programme focused on:

  1. Clarifying compliance updates
  2. Quicker well access and safer well control
  3. ​Understanding HPHT well intervention (systems)
  4. Forecasting well intervention activity, discussing new commercial models and comparing platform options
  5. Best practice riserless well intervention
  6. ​The latest well intervention equipment

For registration, speaking or sponsorship enquiries contact Abigail Clifton on; +44 (0) 203 793 8800.

More info

read more >


OCEANS is the bi-annual event for global marine technologists, engineers, students…

read more >

OTC Brasil

The conference is organized by the Offshore Technology Conference (OTC) and Brazilian Petroleum…

read more >

Europort 2019

Europort, organised in the world port city of Rotterdam, will be the leading exhibition for special purpose vessels…

read more >