據(jù)油田技術消息稱，挪威石油局（NPS）宣布，878生產(chǎn)許可證運營商Equinor將完成30/2-5 S初探井的勘探工作。
該井位于北海白熊油田以南約17公里，卑爾根西北160公里處。
該井的目標是在中侏羅世的儲層巖石中探明石油。
30/2-5 S油井在布倫特組（塔伯特、內斯、艾斯納和蘭諾克地層）遇到了一個約160米的氣柱，其中60米包含有效的砂巖儲層：內斯地層中砂巖厚度為30米，儲層質量較差至中等，艾斯納地層厚度15米，儲層質量以中等為主。塔伯特地層厚度為10米，儲層質量差到中等，蘭諾克地層厚度5米，儲層質量差。
初步估計發(fā)現(xiàn)的規(guī)模在300萬到1000萬立方米的可采石油當量之間。許可證持有方將考慮在對該地區(qū)的全面評估中繼續(xù)進行油氣發(fā)現(xiàn)。
該井沒有進行地層測試，但已經(jīng)獲得了大量數(shù)據(jù)，并采集了樣本。
這是證878生產(chǎn)許可中的第一口勘探井。該許可證在2016年頒發(fā)。
30/2-5 S井在海平面以下的垂直深度為4359米，測量深度為4390米。
878生產(chǎn)許可證的所有者是Equinor（60％）、資源能源公司持股20％和衛(wèi)斯理石油公司持股20％。
曹海斌 摘譯自 油田技術
原文如下：
Equinor makes gas and condensate discovery near Kvitebj?rn field
The Norwegian Petroleum Directorate (NPS) has announced that Equinor, operator of production licence 878, is in the process of concluding the drilling of wildcat well 30/2-5 S.
The well was drilled about 17 km south of the Kvitebj?rn field in the North Sea and 160 km northwest of Bergen.
The objective of the well was to prove petroleum in reservoir rocks from the Middle Jurassic Age (the Brent Group).
Well 30/2-5 S encountered a gas column of about 160 m in the Brent Group (the Tarbert, Ness, Etive and Rannoch Formations), of which 60 m comprise effective sandstone reservoir: the Ness Formation has 30 m of sandstone with poor to moderate reservoir quality, while the Etive Formation has 15 m of sandstone, primarily of moderate quality. The Tarbert Formation has 10 m of sandstone with poor to moderate reservoir quality, while the Rannoch Formation has 5 m of poor quality sandstone.
Preliminary estimates place the size of the discovery between 3 and 10 million m3 of recoverable oil equivalents. The licensees will consider following up the discovery in an overall assessment of the area.
The well was not formation-tested, but extensive volumes of data have been acquired, and samples have been taken.
This is the first exploration well in production licence 878. The licence was awarded in APA2016.
Well 30/2-5 S was drilled to a vertical depth of 4359 m below sea level and a measured depth of 4390 m.
The licence owners of production licence 878 are Equinor (60%), Source Energy (20%) and Wellesley Petroleum (20%).
