Delineation of 34/4-15 S (Dugong) oil discovery in the North Sea – 34/4-16 S

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Illustration image.

30/03/2021 Neptune Energy Norge AS, operator of production licence 882, has completed the drilling of appraisal well 34/4-16 S on the 34/4-15 S (Dugong) oil discovery.

The well was drilled about 10 kilometres northwest of the Snorre field in the North Sea and 160 kilometres west of Florø.

Two wildcat wells were drilled in production licence 882 in the summer of 2020. 34/4-15 S (Dugong) proved oil in reservoir rocks from the Middle Jurassic Age (Rannoch Formation). 34/4-15 A (Sjøpølse) confirmed the oil discovery in the Rannoch Formation and also proved an oil column in reservoir rocks from the Late Jurassic Age (most likely also the Rannoch Formation).

Before well 34/4-16 S was drilled, the operator's resource estimate for the discovery (Dugong including Sjøpølse) was between 6.6 and 19 million standard cubic metres (Sm3) of recoverable oil equivalents.

The objective of the well was to delineate the discovery in the Rannoch Formation and prove the oil/water contact.

The well encountered a 25-metre oil column in the Rannoch Formation, 22 meters of which consists of sandstone of primarily moderate reservoir quality. The oil/water contact was encountered at a vertical depth of 3443 meters below sea level.

Preliminary calculations put the size of the discovery (Dugong and Sjøpølse) between 6.4 and 17.2 million Sm3 of recoverable oil equivalents. So far, the development solution for the discovery is under assessment.

Extensive data acquisition and sampling have been carried out.

This is the third exploration well in production licence 882. The licence was awarded in APA 2016.

Appraisal well 34/4-16 S was drilled to respective vertical and measured depths of 3556 and 3603 metres below sea level, and was terminated in the Drake Formation from the Early Jurassic Age.

The water depth is 330 metres. The well has been temporarily plugged and is scheduled for formation testing later in 2021.

The well was drilled by the Deepsea Yantai drilling facility, which is now moving on to drill development wells in production licence 636 on the Duva field in the North Sea, where Neptune Energy Norge AS is the operator.

 

Map of well 34-4-16-S

Contact

Ola Anders Skauby

Director Communication, public affairs and emergency respons

Tel: +47 905 98 519

Updated: 30/03/2021

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