摘要
岩石孔隙压缩系数在无实验测定时一般采用经验公式获取,预测结果存在较大误差。应用物质平衡原理和分流量方程,提出了一种应用弹性阶段含水率预测岩石孔隙压缩系数的新方法。算例分析及实际应用表明,新方法的计算结果相对误差在5%以内。应用动态资料预测的岩石孔隙压缩系数更适合于油藏工程计算,为岩石孔隙压缩系数的预测提供了新思路。
Rock pore compressibility generally is obtained by empirical formula when experimental test data is not available,so there are larger errors in the prediction results. By using material balance approach and fractional flow equation,a new method to predict rock pore compressibility by elastic – stage water cut was put forward. The case analysis and real application show that the relative error of the calculation results by the new method is less than 5%. The rock pore compressibility predicted from dynamic data is more suitable for reservoir engineering calculation,providing a new approach for the prediction of rock pore compressibility.
出处
《特种油气藏》
CAS
CSCD
北大核心
2014年第3期97-99,155,共3页
Special Oil & Gas Reservoirs
基金
国家重大专项"海上油田丛式井网整体加密及综合调整技术"(2011ZX05024-002)
