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Equinor and partners have made oil and gas discovery at the Tyrihans field in the Norwegian Sea.

The discovery was made during the drilling of the exploration well 6407/1-A-3 BH from subsea template A at the Tyrihans North field.

According to estimates, the discovery holds between 19 million and 26 million barrels of oil equivalent (boe) of recoverable resources.

Equinor Norwegian continental shelf exploration senior vice-president Nick Ashton said: “It is encouraging to prove new resources that can extend the life of producing fields in the Norwegian Sea.”

The well 6407/1-A-3 BH was drilled to a total measured depth of 5332m using the Transocean Norge drilling rig.

Equinor said the drilling of the well was aimed to prove the presence of petroleum in lower-mid Jurassic reservoir rocks (Ile and Tilje formations).

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By GlobalData

During the drilling of the well, the partners encountered a gas column of about 43m and an oil column of about 15m in the Ile formation. This includes about 76m of moderate to good reservoir quality sandstone.

In the Tilje formation at the well, the firms identified moderate to good quality water-bearing reservoir.

Ashton added: “Thanks to the location we are able to put the discovery on stream over the Tyrihans field immediately, which will both ensure good profitability and low CO₂ emissions from production.”

Considering the discovery commercial, the licensees plan to immediately start production at the well.

The well was completed in the Åre formation from the lower Jurassic period.

Equinor’s partners in the field include France-based Total and Eni’s Norwegian subsidiary Vaar Energi.

The well represents the fifth exploration well drilled in production licence 73 and the sixth exploration well drilled on the Tyrihans field.

Transocean Norge drilling rig will now drill the producer 6407/1-A-3 CH on the Tyrihans field.