OMV to Resume Production at Maari Oil Field

Source: www.gulfoilandgas.com 1/12/2017, Location: Not categorized

The Maari oil-field, 80km off the Taranaki Coast, is set to progressively resume production this week says its operator, OMV New Zealand. The company stopped production in late November last year as a precaution, following discovery of a crack in one of the well-head platform’s 12 horizontal struts during a scheduled inspection.

As an intermediate solution devised by specialist advisors AMOG, three clamps were installed in December by air divers. Fitzroy Engineering and NZ Diving and Salvage were both contracted to undertake the repair.

This secured the damaged strut on level 3, about 4 metres below the waterline. The repair was independently verified by Lloyds, both during the design phase and post-installation. OMV has also completed a full electromagnetic inspection of all nodes (strut and leg connections) on level 3 and undertook a Remotely Operated Vehicle (ROV) inspection of the entire platform structure which stands in approximately 100m of water.

Two options for a permanent solution are currently being investigated by AMOG and Worley Parsons (Melbourne). This work is expected to be completed this month and a preferred concept selected. The subsequent permanent repair will likely be completed by mid-2017.

During the interim repair period OMV resumed its planned shutdown maintenance programme that had been scheduled to start 5 December. This included completing the replacement of a water injection flowline. Two specialist support vessels, from Maersk and DOF, were contracted for this work.

Maintenance work on the field’s production risers (flexible pipes connected between the wellhead platform and the floating production vessel Raroa) was also undertaken during the shutdown.

Regulatory agencies WorkSafe, Maritime New Zealand and the Environmental Protection Authority were consulted on an on-going basis throughout the work.

The Maari oilfield
The Maari field is located 80 km off the Taranaki coast in water depths of about 100m. It is operated by OMV New Zealand Ltd (69%) on behalf of the Maari JV which includes Todd Maari Ltd (16%), Horizon Oil International Ltd (10%) and Cue Taranaki Pty Ltd (5%).


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