Equinor 及其合作伙伴在北海的 35/11-30 S 和 35/11-30 A 探井（“Rhombi”）中发现了油气。

初步估计，该发现的规模为 200-450 万标准立方米（Sm3）可采油当量。这相当于 1260-2830 万桶。

钻探作业由 Deepsea Atlantic 钻井平台执行。这些是 1984 年第八轮许可授予的生产许可证 090 中的勘探井 22 号和 23 号。

近年来，该地区的勘探活动十分活跃。在所谓的 Fram 许可证以及周围的生产许可证中发现了几处油气。

许可证持有者正在考虑将 Rhombi 发现与该地区未来或现有的基础设施结合起来。

Fram 轴线（Fram、Fram-H-Nord、Byrding）被导向 Troll C 平台进行加工和出口。

地质信息：
该井的目标是探明松恩峡湾组上侏罗统储层中的石油。次要勘探目标是探明芬斯峡湾组中侏罗统储层中的石油。35

/11-30 S 井在松恩峡湾组发现了 41 米厚的含气砂岩层和 9 米厚的含水砂岩层，这两层储层性质都非常好。没有遇到气水接触。

在二次勘探目标中，35/11-30 S 井在 Fensfjord 组钻遇 72 米厚的砂岩层，储层性质非常好。储层为含水层。35

/11-30 A 井在 Sognefjord 组钻遇 43 米厚的气柱和 6 米厚的油柱。储层厚度为 110 米，储层性质非常好。在 1961 米处钻遇气/油接触面，在海平面以下 1967 米的垂直深度处钻遇油/水接触面。

在二次勘探目标中，35/11-30 A 井在 Fensfjord 组 100 米厚的砂岩储层中钻遇 12 米厚的油柱，储层性质良好。其余 88 米为含水层。未钻遇油/水接触面。

这些井未进行地层测试，但进行了广泛的数据采集和采样。35

/11-30 S 井的垂直深度为 2232 米，测量深度为海平面以下 2358 米。35/11-30 A 井的垂直深度为 2266 米，测量深度为海平面以下 2650 米。这两口井的终点都在中侏罗纪石楠地层。

现场水深为 355 米。这些井已被永久封堵并废弃。

Equinor and its partners have made an oil and gas discovery in wildcat wells 35/11-30 S and 35/11-30 A (“Rhombi”) in the North Sea.

Preliminary estimates indicate the size of the discovery is between 2.0-4.5 million standard cubic metres (Sm3) of recoverable oil equivalent. This corresponds to between 12.6 and 28.3 million barrels.

The drilling operation was carried out by the Deepsea Atlantic rig. These were exploration wells number 22 and 23 in production licence 090, awarded in the eighth licensing round in 1984.

There has been significant exploration activity in this area in recent years. Several discoveries have been made in what are referred to as the Fram licences, as well as in surrounding production licences.

The licensees are considering tying the Rhombi discovery to future or existing infrastructure in the area.

The Fram axis (Fram, Fram-H-Nord, Byrding) is routed to the Troll C platform for processing and export.

Geological information:
The objective of the well was to prove petroleum in Upper Jurassic reservoir rocks in the Sognefjord Formation. The secondary exploration target was to prove petroleum in Middle Jurassic reservoir rocks in the Fensfjord Formation.

Well 35/11-30 S encountered a 41-metre gas-filled sandstone layer and a 9-metre aquiferous sandstone layer in the Sognefjord Formation, both of which with very good reservoir properties. The gas/water contact was not encountered.

In the secondary exploration target, well 35/11-30 S encountered a 72-metre sandstone layer with very good reservoir properties in the Fensfjord Formation. The reservoir was aquiferous.

Well 35/11-30 A proved a 43-metre gas column over a 6-metre oil column in the Sognefjord Formation. The reservoir was 110 metres thick, with very good reservoir properties. The gas/oil contact was encountered at 1961 metres and the oil/water contact at a vertical depth of 1967 metres below sea level.

In the secondary exploration target, well 35/11-30 A encountered a 12-metre oil column in a 100-metre sandstone reservoir in the Fensfjord Formation, with good reservoir properties. The remaining 88 metres were aquiferous. The oil/water contact was not encountered.

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

Well 35/11-30 S was drilled to a vertical depth of 2232 metres and measured depth of 2358 metres below sea level. Well 35/11-30 A was drilled to a vertical depth of 2266 metres and measured depth of 2650 metres below sea level. Both wells were terminated in the Heather Formation in the Middle Jurassic.

Water depth at the site is 355 metres. The wells have been permanently plugged and abandoned.