Robot crane RoBorg successfully performs
first offshore operation

Recently, the maintenance vessel Kroonborg dropped off the robot crane, the RoBorg, at the UK platform Leman Alpha. The RoBorg was tested on land last summer in Groningen. The Leman Alpha platform is the first to use the RoBorg offshore.


 

Recently, the maintenance vessel Kroonborg dropped off the robot crane, the RoBorg, at the UK platform Leman Alpha. The RoBorg was tested on land last summer in Groningen. The Leman Alpha platform is the first to use the RoBorg offshore.


Significantly reducing CO2 emissions is important to the transition to sustainable energy. In the coming decades, this reduction of CO2 can largely be achieved through energy efficiency and the use of natural gas in the energy mix. Gas production in the North Sea plays an important role in this. It is essential to produce natural gas offshore cleanly, efficiently and at the lowest possible cost. NAM and Shell UK are working together on gas production at sea.   


Innovative applications

In the seventees NAM and Shell UK started the production of gas at sea. Meanwhil the large gas fields are running empty. The gas stores in the smalle gas fields on land and at sea are declining resulting in increasing costs to produce gas from these fields. Still, NAM and Shell UK are able to produce the last amounts of gas from these small fields by applying innovative solutions. Due to the application of new techniques costs can be reduced significantly, such as the maintenance vessel Kroonborg leads to a new efficient way of working offshore.

Safe and comfortable

Kroonborg supports offshore operations in a safe and comfortable way at the management of 158 production wells on the Dutch side and 187 wells on the UK side. Maintenance on unmanned platformas ont he North Sea is executed with assistance of Kroonborg. Every two weeks Kroonborg visits platforms where 

doet tijdens een tweewekelijkse ronde de platforms aan waar activities on wells are planned. Service crew are no longer obliged to use helicopters to go to their work, resulting in less travelling time and waiting time. Reducing the number of helicopter flights with 30% also reduces the emission of CO2.

Operating costs

NAM and Shell UK are significantly reducing operating costs by simplifying platforms, which involves removing facilities such as gas treatment installations, living quarters, helicopter decks and hoisting cranes. But even on these simple platforms, wells must be regularly inspected and repairs carried out. From now on, the RoBorg can perform these tasks without cranes and expensive work platforms.



Positive reactions

“Kroonborg lifted the RoBorg on a deck of the Leman Alpha platform, along with several other pieces of equipment. Within 24 hours, the complete set-up for inspecting the well had been installed”, explained Wessel Hollander, Well Services Engineer on the platform. 

Robbert Kroes, Production Technologist: “The inspection with the RoBorg supplies good information that helps us take measures to improve the well’s production. In addition to performing inspections, we are working with the robotic crane to secure safety valves and plugs in wells. With the RoBorg, we can also do maintenance work on the unmanned platforms in the Netherlands and UK.”

Two years ago Kroonborg started working for  NAM and Shell UK in the Southern North Sea. Today we look back on her achievements so far.

  • Safety: 0 LTI
  • Gangway: 26.600 people transferred offshore
  • Lifts: 1.930 lifts upto 4,5 tonnes
  • Workability: 94,7% of contracting days employed