Equinor在北海35/10-11 S和A井中发现了“Heisenberg”油气发现，并在Hummer勘探区探明了石油。

初步计算表明，该发现规模为3.8至890万标准立方米（Sm3）油当量（oe）。这相当于 24-5600 万桶原油

钻探前海森堡的资源估计为 4.1 至 900 万标准立方米原油

初步计算得出 Hummer 的规模为 0.1 至 60 万标准立方米原油

这些是 2017 年钻探的第一口和第二口井生产许可证 827 SB。这是 827 S 生产许可证的额外面积，也是最初发现的地方。此次钻探是使用卑尔根西北约 140 公里处的 Deepsea Stavanger 钻井平台进行的。

生产许可证是在 2015 年预定义区域奖 (APA) 中授予的，而额外的面积 827 SB 是在 2022 年 APA 中授予的。此后，一些公司已经售完，目前的许可证持有者是 Equinor（51 %）和 DNO Norge（49%）。

地质信息
35/10-11 S 井的主要勘探目标是描绘 35/10-9 始新世霍达兰群下游的海森堡发现。次要勘探目标是上古新统至下始新统Balder组的Hummer矿区。由于35/10-11 S在水区遭遇主要目标，因此35/10-11 A钻了侧线，其主要目标是在油区遭遇海森堡上侧。

35/10-11 S井在Hordaland群发现总长约10米的砂岩储层，储层质量良好。该储层含水，含有微量碳氢化合物。

在Balder组二次勘探目标中，该井在砂岩中发现了3米长的油柱，总长为23米，储层质量为中差。

35/10-11A井钻遇砂岩储层，总长约12米，储层质量为中等到良好。该油藏位于霍达兰群 (Hordaland Group) 内，有一个 12 米长的油气柱。

气/油接触面位于海平面以下 1571 米处，油/水接触面位于海平面以下 1576 米处。

该井没有进行地层测试，但进行了大量的数据采集和采样。

35/10-11 S井钻探至海平面以下1853米的测量深度，终止于古新世的罗加兰群。

35/10-11 A 井钻探至海平面以下 1690 米的测量深度，终止于始新世霍达兰群。

现场水深为364米。该井已被永久堵塞并废弃。

Equinor has delineated the "Heisenberg" oil and gas discovery in wells 35/10-11 S and A in the North Sea, and has also proven oil in the Hummer prospect.

Preliminary calculations indicate that the size of the discovery is between 3.8 and 8.9 million standard cubic metres (Sm3) of oil equivalent (o.e.). This corresponds to 24-56 million barrels of o.e.

Resource estimates for Heisenberg prior to drilling were between 4.1 and 9.0 million Sm3 of o.e.

Preliminary calculations place the size of Hummer between 0.1 and 0.6 million Sm3 of o.e.

These are the first and second wells drilled in production licence 827 SB. This is additional acreage for production licence 827 S, where the original discovery was made. The drilling was carried out using the Deepsea Stavanger rig about 140 kilometres northwest of Bergen.

The production licence was awarded in the Awards in Pre-defined Areas (APA) in 2015, while the additional acreage, 827 SB, was awarded in APA 2022. Since then, a few companies have sold out and the current licensees are Equinor (51 per cent) and DNO Norge (49 per cent).

Geological information
The primary exploration target for well 35/10-11 S was to delineate the Heisenberg discovery made in 35/10-9 in the lower Hordaland Group in the Eocene. The secondary exploration target was the Hummer prospect in the Balder Formation in the upper Palaeocene to lower Eocene. Since 35/10-11 S encountered the primary target in the water zone, the 35/10-11 A sidetrack was drilled with the primary target of encountering Heisenberg upflank in the oil zone.

Well 35/10-11 S encountered a sandstone reservoir totalling about 10 metres with good reservoir quality in the Hordaland Group. The reservoir was aquiferous with traces of hydrocarbons.

In the secondary exploration target in the Balder Formation, the well encountered a 3-metre oil column in sandstone totalling 23 metres with poor to moderate reservoir quality.

Well 35/10-11 A encountered a sandstone reservoir totalling about 12 metres with moderate to good reservoir quality. This reservoir has a 12-metre oil and gas column in the Hordaland Group.

The gas/oil contact was encountered 1571 metres below sea level, and the oil/water contact was proven 1576 metres below sea level.

The well was not formation-tested, but extensive data acquisition and sampling were carried out.

Well 35/10-11 S was drilled to a measured depth of 1853 metres below sea level, and was terminated in the Rogaland Group in the Palaeocene.

Well 35/10-11 A was drilled to a measured depth of 1690 metres below sea level, and was terminated in the Hordaland Group in the Eocene.

Water depth at the site is 364 metres. The well has been permanently plugged and abandoned.