Compressor, tank concerns halt operations at North Sea platforms

Nov. 21, 2019
EnQuest has issued updates on measures it is taking to sustain production from its UK North Sea fields.

Offshore staff

LONDONEnQuest has issued updates on measures it is taking to sustain production from its UK North Sea fields.

At Magnus, a new two-well program has started that should deliver first oil in early 2020. The company has identified numerous drillable targets as it looks to develop a further 50 MMboe of 2C resources on the field.

Compressor issues have impacted production at Heather. During a shutdown to undertake repairs to the compressors, a small fire broke out in one of the compressor modules.

Although this was extinguished quickly, with the facility still shut down, the UK’s Health & Safety Executive subsequently issued a prohibition notice in October. EnQuest is conducting its own independent investigation into the incident.

On Thistle, the company identified deterioration in the condition of a metal plate connecting one of the redundant storage tanks to the platform’s legs during a recent underwater inspection.

The offshore installation manager decided to down man the platform as a precaution. EnQuest had already planned to remove the tanks as part of the decommissioning process in 2020, and the program has now been accelerated, with contract notices put out for the subsea and heavy lift operations.

Since production started at the heavy-oil Kraken field, more than 24 MMbbl have been produced.

The company has now awarded a rig contract for drilling on the field’s Western Flank Area in 2Q 2020 of a producer-injector pair through spare capacity in the DC2 drill center subsea infrastructure.

The area is thought to hold around 100 MMbbl in place, and in addition EnQuest is evaluating the Pembroke, Antrim and Barra areas and assessing the potential for developing the Maureen sands directly beneath the reservoir.