Envirent

Track record

Integrated grease pump basket for subsea maintenance (IMR)

A subsea contractor needed to inject grease into rotating components during an IMR operation in the North Sea and returned to Envirent after a positive experience on a previous project. Envirent delivered a Center Pole Basket with an integrated grease reservoir and hydraulically driven gear pump.

The basket held roughly 1 100 litres of grease and was tested down to –40 °C to ensure the right viscosity before deployment. The Center Pole Basket can be converted from guidepost transport to standard ROV tooling and intervention, offering flexibility and increased efficiency. 

The flexible design means the pump and reservoir size can be swapped out for future jobs without building a new basket. The operation ran from summer to autumn 2023 and was completed without issues. 

IndustryOil & Gas (IMR)
DeliveryCenter Pole Basket with integrated grease pump and 1100 L reservoir (hydraulic gear pump).
CustomisationInsulated tank and pump designed for low-temperature operation, tested at -40ºC to guarantee proper viscosity.
Duration/scopeOne basket: July – November 2023
LocationNorwegian continental shelf