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Heidrun

Picture of two men working at the Heidrun platform

This field in the Norwegian Sea has been producing oil and gas since October 1995 from a floating tension leg platform with a concrete hull.

Heidrun was discovered in 1985 by Conoco, which served as operator for the exploration and development phase.

The field
A total of 76 wells are planned on the main field, including 51 producers, 24 water injectors and one gas injector. The north flank of Heidrun was brought on stream in August 2000.

Transport
Gas from Heidrun is piped to Tjeldbergodden in mid-Norway and provides the feedstock for the Equinor's methanol plant there.

From 2001, the field has also been tied to Åsgard Transport. Heidrun gas is piped through this trunkline to Kårstø north of Stavanger and on to Dornum in Germany – a total distance of roughly 1400 kilometres.

Environment
Heidrun has become the first Equinor field which can handle all produced water without any environmentally-harmful discharges. This follows the investment of some NOK 600 million by the Heidrun licencees in a plant for injecting such water - and any oil or chemical residues it contains - back into the reservoir. The result is zero harmful discharges under normal operation. And the injected water serves as pressure support to improve oil recovery.

The injection facility is able to handle just over 110,000 barrels of produced water per day.

platform illustration

Location: The Halten bank off the coast of mid-Norway
Production start: 18 October 1995
Production: Oil and gas

Norwegian petroleum

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