摘要
Abstract
In order to evaluate the exploration potential of shale gas in the eastern margin of the Ordos Ba-sin,taking LX block on the eastern margin as the target,based on well logging and experimental analysis data,combined with the exploration and development results of marine shale gas in the Sichuan Basin and terrestrial shale oil in the Ordos Basin,the marine-terrestrial transitional shale in LX block is classified,and a key parameter calculation method is established.The results indicate that there are two types of transi-tional shale:marine-like and terrestrial-like.Based on core experimental data,the analysis on key pa-rameters such as shale gas mineral composition,organic matter content,and interlayer ratio is carried out.By using the optimization method,curve regression method,and electrical imaging logging method,the key parameters of marine-continental transitional facies such as thickness,brittleness,mineral content,and organic matter content are calculated,which are similar to those of mature shale oil and gas blocks,proving great exploration potential for shale gas in LX block.Therefore,the research results provide important data and effective means for shale gas evaluation in the Ordos Basin.关键词
鄂尔多斯盆地/页岩气/海陆过渡相/脆性指数/有机碳含量Key words
Ordos Basin/shale gas/marine-continental transitional facies/brittleness index/organic car-bon content分类
石油、天然气工程
