潜江凹陷潜3~4-10韵律页岩油储层录井评价

Logging Evaluation on Qian 3~4-10 Rhythm Shale Oil Reservoir in Qianjiang Sag

江汉盆地潜江凹陷潜江组韵律层富含属于非常规油气的页岩油资源,成藏条件与类型复杂,储层特征及流体性质认识程度较低。应用录井手段对有代表性的潜3^4-10韵律取心层段进行地化及核磁特性实验分析,从有机质丰度、类型、成熟度、储集条件等方面进行综合评价。结果表明,潜3^4-10韵律页岩储层段含油性较好,烃源岩和储集条件优越,具有良好的页岩油勘探开发前景。

The rhythmic formation of Qianjiang Formation in Qianjiang Sag of Jianghan Basin is rich in unconventional shale oil resources,with complex reservoir forming conditions and types,and relatively low understanding of reservoir characteristics and fluid properties.The geochemical and nuclear magnetic characteristics of the typical Qian 3^4-10 rhythmic coring interval are analyzed by the logging method,and the organic matter abundance,its type,its maturity and its storage conditions are comprehensively evaluated.The results show that Qian 3^4-10 rhythm shale reservoir has good oil bearing,superior source rocks and storage conditions with good prospects for shale oil exploration and development.