摘要
针对复杂储层岩性识别难度较大的情况,引入Bayes数理统计方法,把采用测井资料来划分岩性,看作是一种类别判别问题,通过计算样本的后验概率大小来判别样品类别的归属。实际应用结果表明,将Bayes判别应用于复杂岩性的划分,效果良好。
At present, along with the further development of oil exploration, the exploration and development of the complex reservoirs were more difficult. In consideration of the difficult condition to lithology identification of complex reservoirs, Bayes method of mathematical statistics was introduced, logging data were used to classify the lithology to regard the classification discriminant as a problem, and then determine the sample type of attribution by calculating the posterior probability of sample. Practical application results show that the Baye-judge is well applied to complex lithology delineation.
出处
《石油天然气学报》
CAS
CSCD
北大核心
2009年第2期74-77,共4页
Journal of Oil and Gas Technology
关键词
Bayes判别
岩性识别
测井评价
Bayesian discriminant
lithology identification
log evaluation
