【摘要】 东海平湖油气田八角亭构造H4b油藏具有储层薄、非均质性强的特点,且采用多分支水平井开发模式,加大了储层描述和油藏建模难度。以钻井和三维地震资料为基础,通过直井精细地层对比和叠前反演技术来预测储层展布特征,充分应用水平井钻进轨迹调整储层描述结果,将目标油藏作为单砂体—流动单元复合体进行地质建模,并利用水平井在砂体内钻进轨迹长、物性参数横向覆盖面广的优势,结合地震属性约束方法,最终建立了符合地质动、静态现状的精确模型。更多还原

【Abstract】 The H4b reservoir of Bajiaoting structure in Pinghu oil and gas field is characterized by thin layers and strong heterogeneity,and it was developed by multi-branch horizontal wells,which makes reservoir description and reservoir modeling difficult.Based on well drilling and 3D seismic data,detailed stratigraphic correlation and pre-stack inversion techniques were applied to predict the reservoir distribution.The drilling trace of horizontal wells was fully used to adjust the reservoir description results,and the target reservoir is taken as single sand body or flow units for geological modeling.By taking the advantages of the long drilling trace of horizontal wells and wide horizontal cover of physical properties,combined with seismic attribute constraint,the model suitable for dynamic and static geology was finally established.更多还原