应用测井资料对Y气田南断块含气情况分析

THE GAS BEARING ANALYSIS FOR THE SOUTH FAULT BLOCK OF YACHENG 13-1 GAS FIELD BASED ON THE LOGGING DATA

应用自然伽玛能谱、地层压力测试、岩石力学性质、地层倾角等测井新技术研究Y气田南断块3号井钻探情况,认为该井钻遇断层,含气地层大部分断缺。此结论与用沉积环境、岩石性质、古生物及成岩演变等地质资料所分析的结果一致。地震剖面亦显示3井两侧气层的顶底界错位。由于钻遇断层,未钻遇南断块的真实气水界面,Y气田南、北两断块应属同一个层状边水气藏。

By analysis of well YA13-1-3 located in south fault block with the use of new logging technigues— natural gamma-ray spectrum,formation pressure test,rock mechanics property, and stratigraphic dip etc.,authors consider that fault was drilled and most gas bearing formations lost.This conclusion is the same as the analysis results for depositional enviroments,rock properties, paleobiology,and diagenetic chang etc.Seismic section also presents the formation dislocation of two siddes in well YA1 3—1 —3.Because the fault was drilled and true gas water contact is not found,south Yacheng fault block and north Yacheng fault block belong to the same stratified gas reservoir with edge aquifer.