灰色关联技术在老油田储层预测解释中的应用

Application of gray correlation technology in reservoir predication interpretation of maturing oilfield

金利

Jin Li

中国石油大庆油田有限责任公司第四采油厂，黑龙江 大庆 163511

No.4 Oil Production Plant of Daqing Oilfield Co. Ltd., PetroChina, Daqing 163511, China

针对老油田储层横向变化大、井间砂岩识别难的特点，以大庆长垣S油田萨尔图油层为例，阐述了灰色关联储层解释技术的方法原理、实现过程的2个关键环节，以及该技术与地震属性分析的区别。实践证明，灰色关联储层解释成果既符合井数据的地质规律特征，又能反映出在地震数据中观测到的大尺度结构和储层连续性，同时进一步明确了砂体接触关系，尤其是对河道砂体横向边界的预测，有利于提高储层预测精度。

Aimed at the characteristics of great lateral change and indiscernible sandstone among wells in maturing oilfield, this paper expounds the principles and practices of gray correlation reservoir interpretation technology and the differences with seismic attribution taking the Sartu reservoir research of S Oilfield in Changyuan, Daqing as an example. The practice proves that the results of gray correlation reservoir interpretation technology accord with the geology characteristics shown by well and seismic data. The wide structure and reservoir continuity are observed and the contact relationship of sand body is defined, especially predicting the horizontal boundary of channel sand body, which can improve the precision of reservoir prediction.

10.6056/dkyqt201205013