Operations and support activities

Find out about what we do and equipment used to inspect, service and repair offshore wells and production infrastructure.

What happens offshore when we're producing gas for the domestic market?

Operations include:

Continuous:

  • hydrocarbon extraction and transport 

Intermittent

  • inspection, maintenance and repair
  • well intervention.

Inspections, maintenance and repair (IMR)

We proactively identify necessary maintenance or repair work through regular inspections, in accordance with integrity management plans. This may result in maintenance and repair work. IMR activities are carried out from an offshore support vessel using remotely operated vehicles (ROVS) and occasionally divers.

ROV operations

Inspection and/or work-class ROVs are used for IMR activities (Autonomous Underwater Vehicles (AUV) may also be used). A ROV is a tethered underwater vehicle operated by a crew aboard the vessel or MODU. 

ROVs are equipped with a video camera and lights. Additional equipment may include positioning and survey equipment, and various apparatus to support installation and IMR activities. ROVs could be required to park or moor on the seabed or to temporarily sit on the seabed. 

Diver operations

Diving can be required during installation or maintenance activities. A saturation Diving Support Vessel (DSV) would support diving and have a diving bell to transport divers to and from the surface to the work area.