Kroonborg: a decade of walk-to-work leadership in the offshore industry
Ten years ago, Wagenborg introduced the world’s first walk-to-work (W2W) vessel, Kroonborg, transforming offshore maintenance operations for NAM/Shell UK in the Southern North Sea. As a groundbreaking innovation, Kroonborg set new standards for safe, reliable, and year-round offshore personnel and equipment transfers. Today, Wagenborg proudly maintains its leadership in this niche, operating five W2W vessels that continue to redefine offshore logistics.
This milestone is not just about technological achievement; it reflects Wagenborg’s deep commitment to safety, innovation, and collaboration. These core values have been instrumental in Kroonborg’s success and continue to shape the company’s role as a trusted partner in offshore operations.
The origins of the Kroonborg project
The Kroonborg project stemmed from a clear industry need: a safer, more efficient alternative to traditional offshore crew transfers. Helicopter flights and swing ropes posed operational challenges, particularly in adverse weather conditions. Recognizing these limitations, Wagenborg, in collaboration with shipbuilder Royal Niestern Sander and end-users NAM and Shell, developed a vessel designed to offer a seamless, safe, and efficient transfer solution.
When Kroonborg was launched, it was not just another offshore vessel—it was a pioneering concept. The combination of cutting-edge technology, a focus on crew comfort, and a commitment to operational efficiency made it a game-changer in offshore maintenance and logistics.
Technical capabilities: a Swiss army knife at sea
Kroonborg is more than just a W2W vessel; it is a multifunctional workhorse, integrating the roles of an accommodation vessel, IMO 2 tanker, workboat, and supply ship. Its design allows for offshore activities to continue seamlessly for up to 300 days per year.
Advanced motion compensation technology
A key innovation onboard Kroonborg is the motion-compensated Ampelmann gangway system, which ensures safe personnel transfers even in wave heights up to 2.5 meters. This system allows technicians to "walk to work" comfortably, reducing risks and increasing efficiency compared to traditional transfer methods.
Supporting this capability is the Barge Master T40 motion-compensated crane—the first of its kind in the industry. This advanced crane enables safe and stable lifting of equipment and materials, even in rough sea conditions, significantly broadening Kroonborg's operational window.
Unmatched maneuverability and stability
The vessel’s propulsion system is driven by Voith Schneider propellers, which provide exceptional maneuverability and stability. These thrusters, specially designed for dynamic positioning (DP2), enhance crew comfort, fuel efficiency, and the vessel’s ability to hold position with pinpoint accuracy.
A comfortable and safe working environment
Beyond its technical prowess, Kroonborg prioritizes crew well-being. The vessel accommodates up to 60 personnel, including two teams of 20 offshore technicians. Facilities such as comfortable cabins, a hospital, internet café, mess room, and fitness studio ensure a high standard of living for those onboard. The ship’s layout is optimized around workflow efficiency, making daily operations smoother and more productive.
The impact on the offshore industry
Since its introduction, Kroonborg has redefined offshore operations, delivering tangible benefits across safety, efficiency, and sustainability.
Safety is at the heart of Wagenborg’s operations, and Kroonborg embodies this commitment. By minimizing the reliance on helicopters and improving transfer safety through motion compensation technology, the vessel has significantly reduced offshore transfer risks.
Operational excellence and efficiency
Operating up to 300 days per year, Kroonborg ensures continuous access to unmanned offshore platforms, minimizing downtime and optimizing maintenance schedules. The vessel’s ability to transport personnel, equipment, and even chemicals in a single deployment streamlines offshore workflows, enhancing overall operational efficiency.
Environmental sustainability
Kroonborg was the world’s first offshore vessel to operate on Gas-to-Liquid (GTL) fuel, reducing emissions compared to conventional marine fuels. Additionally, integrated chemical storage and explosion-proof pumping systems enhance environmental safety during offshore operations. By replacing frequent helicopter transfers with vessel-based access, Kroonborg also contributes to lower carbon emissions.
Wagenborg’s commitment to innovation and collaboration
The success of Kroonborg is a direct result of Wagenborg’s core values:
- Safety: Every employee is empowered to prioritize well-being, creating a culture where safety is non-negotiable.
- Innovation: Wagenborg continuously encourages new ideas and technological advancements, driving efficiency in offshore operations.
- Collaboration: Strong partnerships with clients and industry stakeholders enable tailored solutions that meet unique offshore challenges.
Wagenborg’s commitment to these principles has strengthened its leadership in the walk-to-work sector. The company’s fleet has expanded to five W2W vessels, each building on the foundation laid by Kroonborg. This fleet continues to deliver enhanced offshore support, demonstrating the value of Wagenborg’s expertise and dedication to continuous improvement.
