The Lourinha Formation in the western region of Portugal is an analogue for the Statfjord Formation in the oil and gas fields of the Norwegian Northern North Sea. This petrophysics study encompasses a specific sandstone variety (M variety) of the Lourinha Formation. This lithic arkose shows an average value of effective porosity of 18.5% and a permeability range of 20–30 mD, and is representative of the distribution range in the petrophysics models of the reservoirs of the Statfjord Formation. The petrographical, physical and mechanical characterization of the M variety sandstone is compared with the main features of the oil- and gas-producing sandstones of the Statfjord Formation in a reference well in the Norwegian Northern North Sea. Efficient enhanced oil recovery (EOR) projects in the oil and gas fields of the Norwegian Gullfaks hub are always needed, and this study intends to provide a contribution to that endeavour.

中文翻译：

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对北海油气田 Statfjord 组的 Lourinhã 组类似物的岩石物理学知识做出了贡献。

葡萄牙西部地区的 Lourinha 组类似于挪威北海北部油气田中的 Statfjord 组。这项岩石物理学研究涵盖了 Lourinha 地层的一种特定砂岩品种（M 品种）。该岩质长石显示有效孔隙度平均值为 18.5%，渗透率范围为 20-30 mD，代表了 Statfjord 组储层岩石物理模型中的分布范围。将 M 品种砂岩的岩相、物理和力学特征与挪威北海北部参考井中 Statfjord 组产油和产气砂岩的主要特征进行了比较。