Nexen Petroleum UK Ltd. has obtained approval from companions and the UK Oil & Gas Authority for second-phase improvement of Buzzard oil and gasoline discipline within the Central North Sea (OGJ Online, Nov. 1, 2017).

The new section contains the set up in 96 m of water of a subsea manifold 5 km north of the Buzzard advanced and drilling of as many as eight manufacturing wells and 4 water injectors.


The manufacturing wells will probably be accomplished subsea and tied again to the Buzzard manufacturing platform, one in every of 4 bridge-linked platforms on the sphere.

The discipline in April produced a mean 134,660 b/d of oil. It has 35 manufacturing wells and 13 water injection wells.

The new section is a part of a plan to use enlargement of Nexen’s estimate of unique oil in place to 1.592 billion bbl from the unique estimate of 970 million bbl.

Incremental improvement additionally will happen by way of the drilling of as many as six infill wells from Buzzard’s wellhead platform.

The discipline produces from the Buzzard sandstone of the Upper Jurassic Kimmeridge Clay formation.

In a high-case estimate assuming manufacturing begin in 2020, peak incremental manufacturing from the subsea wells will happen in 2021 at 43,520 b/d. With infill wells, the utmost increase is 44,350 b/d.

Oil within the second section is barely lighter than that of present manufacturing, at 39° gravity.

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