人工蜂群最优化测井解释方法在致密砂岩储层评价中的应用

摘要

Optimization log interpretation method can break the limitation of the conventional explanation, and make full use of logging data and geological information, which can effectively evaluate the complex lithology reservoir, and optimization algorithm is the key to optimization log interpretation.With artificial bee colony (ABC) algorithm optimization log interpretation method, we calculate the volume content of each composition of tight sandstone reservoir in a certain period, and compare with bacteria foraging algorithm-complex hybrid algorithm (BFA-CM) and genetic algorithm (GA).Results show that ABC optimization log interpretation method can achieve the required precision of the edge in dealing with a dense sandstone reservoir, so the parameter is set simply and global search ability is strong, and does not require quadratic optimization.It provides a new method for optimization log interpretation.%最优化测井解释方法打破了常规解释的局限性,充分利用测井资料及地质信息,可有效地评价复杂岩性储层,而优化算法是最优化测井解释的关键.利用人工蜂群(ABC)最优化方法求取苏里格致密砂岩储层某段的各组分体积含量,并与细菌觅食-复合形混合算法(BFA-CM)和遗传算法(GA)进行对比.结果表明,ABC最优化测井解释方法在处理致密砂岩储层时具有参数设置简单,全局搜索能力强,不需要二次优化就可达到所需精度,为最优化测井解释提供了一种新方法.