关键词: 露头, 扇三角洲, 地质知识库, 变差函数, 储层建模, 储层预测

Abstract: The inter-well reservoir prediction is one of the difficult problems in fine modeling of reservoir. The outcrop data can provide the information in small scale of reservoir variation being predicted accurately, even in the dense well areas. The sedimentary properties of the Luanping fan-delta outcrop and Qiuling Oilfield are analogous. The integrated geological analysis was carried out. The geological knowledge databases and their correlative relationship between the outcrop and the oil field were established, and the relations of features and types of oilfield in accordance to the outcrop were determined. By integrating the outcrop variable function in a short range with the oilfield variable function in a long range,the nested variable functions were used to reflect the sandstone distribution in different scales. The nested variable function and the sequential indicator simulation method proven in the outcrop simulation were applied to the reservoir modeling, the predicted result of reservoir in the oilfield was satisfactory. It is proved that the application of outcrop database to oil reservoir modeling is successful. This method can improve the prediction accuracy of inter-well reservoir.

Key words: outcrop, fan-delta, geological knowledge database, variable function, reservoir modeling, reservoir prediction