储层预测中层位储层的精细标定方法

A fine calibration on horizons and reservoir in reservoir prediction

（中国石油勘探开发研究院西北分院，甘肃兰州 730020）

Northwest Branch of Research Institute of Petroleum Exploration and development, PetroChina, Lanzhou 730020, China

随着油田勘探开发程度的逐步深入，对储层预测精度的要求也越来越高，一些常规的层位标定方法已不能满足勘探开发的需要。针对这一问题，提出了“第1步粗标定目的层，第2步精细标定储层”的两步标定思路。首先对传统的层位储层标定方法进行了总结和分析；然后介绍了精细层位储层标定的思想，并对储层标定中的一些技术问题进行了分析；最后利用2个实例来说明方法的实用性和有效性。在C盆地XQ地区应用两步标定法很好地描述了储层的发育和展布特征，提高了预测精度，部署的1口井获得了良好的油气显示；在ZGR盆地MX地区利用两步标定法对主力产油气组进行了储层标定，理清了砂体的展布格局，预测结果应用于后续的综合评价和井位部署，发现了SN岩性油气藏。

Fine calibration of horizon and reservoir is the foundation for high resolution reservoir prediction. This paper presents horizon - reservoir calibration using the method of two stPCX systematically, which means to caliberate seismic horizons coarsely, then to label reservoir subtly. The application results in interesting area, showed this method is a good approach in subtle horizon - reservoir calibration, it includes the following stPCX mainly: goal interval calibration, correlation and tracing, goal interval inversion, subtle reservoir calibration and reservoir prediction. This method has a good match in thin inter-bed reservoir description for oil exploration and development and has good prospecting in practical.