摘要
沉积微相研究目前已成为精细勘探必不可少的一项重要工作,油气的生成、分布与沉积微相密切相关。针对传统沉积微相识别方法以定性分析为主,无法避免人为因素干扰的问题,以渤中26-X构造为例,从录测井资料入手,通过分析各类沉积微相的测井响应特征,选取反映沉积微相变化的形态特征参数,利用数学方法对自然电位、自然伽马等测井曲线进行定量计算,并且运用主成分分析法降维形成综合识别参数,将该参数结合录井岩性数据对沉积微相进行定量识别。应用结果表明,该方法可以实现沉积微相的定量识别,具有较好的应用效果和推广价值。
At present,the study of sedimentary microfacies has become an essential and important work in fine exploration,the generation and distribution of oil and gas are closely related to sedimentary microfacies.However,traditional methods mainly focus on qualitative analysis,and then human factors interference cannot be avoided.By taking 26-X structure of Bozhong as an example,starting from logging data,through the analysis of logging response characteristics of various sedimentary microfacies,selecting the morphological characteristic parameters that reflect the changes of sedimentary microfacies,the spontaneous potential and natural gamma logging curves are quantitatively calculated by mathematical methods.The principal component analysis method is used to reduce the dimension to form a comprehensive identification parameter,which is combined with logging lithology data to quantitatively identify sedimentary microfacies.The research results show that the method can realize the quantitative identification of sedimentary microfacies and has a good application effect and easy promotion.
作者
陈靖
CHEN Jing(Engineering Technology Branch of CNOOC Energy Technology&Services Co.,Ltd.,Tianjin 300452,China)
出处
《石油地质与工程》
CAS
2022年第5期21-27,共7页
Petroleum Geology and Engineering
关键词
录井资料
测井资料
沉积微相
定量识别
mud logging data
well logging data
sedimentary microfacies
quantitative identification
