No trawling during PRM installation for Grane and Snorre fields, NPD says

Work will continue this summer and autumn on installing a Permanent Reservoir Monitoring solution at Snorre offshore field in Norway.

 

A dedicated system with a seismic streamer will also be installed on Grane field, the Norwegian Petroleum Directorate today said.
This work is scheduled for completion in early winter 2015. While the cable is exposed on the seabed, before it is covered, it will be highly vulnerable to any external influence.
Trawling activity should be avoided in this area during this period, NPD advised. Trawling is a method of fishing that involves pulling a fishing net through the water behind one or more boats.

Permanent reservoir monitoring involves permanently installing a streamer on the seabed to provide a more frequent and better-quality seismic picture of changes in the reservoir. The cable will be used to acquire more knowledge about the reservoir, and thereby provide an opportunity to produce more oil.

Installation of the system will involve laying the cable on the seabed before it is trenched or covered with rocks to make it trawlable.

On the Snorre field, the cable will be laid using the vessel Havila Phoenix, and the trenching will be operated from the Northern Wave. On the Grane field, the vessel Olympic Zeus will both lay and bury the cable.

The fields are operated by Statoil. The Snorre field is located in blocks 34/4 and 34/7 in the North Sea. Water depth in the area is approximately. 300-350 metres. The Grane field is located in block 25/11. Water depth in this area is about 130 metres.

Related: Statoil: Permanent Seabed Seismic Streamers to Boost Production

 

 May 30, 2014

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