川北地区大二段油藏超薄储层特征及预测

Characteristics and prediction of ultra-thin reservoirs in Da＇ er Member, Northern Sichuan

针对川北地区致密油藏开发难度较大、研究程度较低的大二亚段超薄储层，通过沉积特征、储层特征的地质研究，并应用高精度统计学反演方法对该超薄储层进行定量预测，解决常规地震预测方法所不能准确预测超薄储层厚度的问题，为大二段储层开发评价部署提供重要依据，并取得较好应用效果。

Aiming at ultra-thin reservoirs of Da＇ er sub-Member with low research degree and a great difficulty of tight oil-reservoir development in North Sichuan, the uhra-thin reservoirs are quantitatively predicted with a high precision statistical inversion method, through geological researches on the sedimentary characteristics and reservoir characteristics. It solves the problem of accurate predic- tion of thin reservoir thickness, which cannot be conducted by the conventional seismic prediction method. It provides important basis for the arrangement of reservoir development and evaluation of the Da＇ er Member, and achieves good application effect.