摘要
针对使用岩电试验求取阿尔奇公式参数成本较高的问题,提出了利用优化算法求取阿尔奇公式参数的思路。针对传统优化算法所存在的虚拟碰撞问题,尝试利用雨林算法求取阿尔奇公式参数。根据60块岩样的蜡封水饱和度数据、物性数据以及深侧向电阻率数据,利用雨林算法求取的阿尔奇公式参数a、b、m、n分别为0.7、1.6、2.1、1.0。利用该参数对另外7块岩样进行含水饱和度预测,其结果与饱和度试验值相对误差不到11.0%,说明雨林算法可有效确定阿尔奇公式参数,在未做岩电试验的情况下可为含水饱和度计算提供帮助。
In view of the problem of higher cost for obtaining parameters of Archie formula by using the rock electric experiment,the idea of using the optimization algorithm to get the parameters of Archie formula was put forward.Aiming at the problem of virtual collision in the traditional optimization algorithm,the rain forest algorithm was experimentally used to get the parameters of Archie formula.Based on 60 samples of wax sealed water saturation data,physical property data and deep lateral resistivity data,rain forest algorithm was used for obtaining the parameters of Archie formula a,b,mand nas 0.7,1.6,2.1and 1.0respectively.The parameters of Archie formula are used to predict the water saturation of the other seven pieces of rock samples,the relative error is only 11%with the experimental values.The results illustrate that the proposed method can effectively identify the parameters of Archie formula,in the circumstances without litho-electric experiment,it is beneficial for water saturation calculation.
出处
《长江大学学报（自科版）（中旬）》
2016年第7期32-35,5,共4页
Journal of Yangtze University(Nature Science Edition)
关键词
阿尔奇公式
雨林算法
寻优
Archie formula
rainforest algorithm
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