临南洼陷北部沙三中亚段砂质碎屑流储层定量分类评价  

Reservoir Quantitative Classification and Evaluation of Sand Dibris Flow in Middle-Es3 of North of Linnan Subsag

作　　者：高丽华[1,2] 夏迪 韩作振 韩梅[1,2] 李昊 

机构地区：[1]山东科技大学山东省沉积成矿作用与沉积矿产重点实验室,山东青岛266590 [2]山东科技大学地球科学与工程学院,山东青岛266590 [3]青岛瑞源工程集团,山东青岛266555

出　　处：《山东科技大学学报（自然科学版）》2018年第1期71-81,91,共12页Journal of Shandong University of Science and Technology(Natural Science)

基　　金：国家自然科学基金项目(41372134);山东省重大科技创新工程项目(2017CXGC1602;2017CXGC1603);山东科技大学科研创新团队支持计划资助项目(2015TDJH101)

摘　　要：临南洼陷北部沙三中亚段发育一套砂质碎屑流扇体,取得了较好油气勘探成果,但该区取心井及实验分析资料较少,困扰着该区储层的定量分类评价。首先利用普通薄片及铸体薄片鉴定、物性和压汞测试,确定该套砂质碎屑流储层物性特征并将研究区储层分为Ⅰ、Ⅱ、Ⅲ三类;再以岩心物性数据作为储层分类标准,建立使用测井数据作为参数的储层贝叶斯判别函数;最后采用判别函数对研究区各井测井曲线进行储层判别分析,所得储层平面分布特征与沉积相展布特征相符。因此,采用贝叶斯判别函数进行储层判别分析与勘探实践吻合,可用于对研究区储层进行评价。Although good results have been obtained in exploring the sandy debris-flow deposit in Middle-Es3 of north of Linnan Subsag,the reservoir quantitative classification and evaluation are still a problem due to few data of coring and experimental analysis.The identification with rock slice and casting lamella,and the measurement of porosity and permeability and mercury injection confirmed the physical properties of the sandy debris-flow reservoir which was divided into Type I,Type II and Type III.Based on core physical property data,the Bayesian discriminant was established with log data as parameters.The discrimination function was used to analyze each well loggingcurve in the study area.The results indicate that the reservoir distribution characteristics are corresponding to the sedimentary facies distribution characteristics,which is in a close agreement with the exploratory practice.As a result,the reservoir discrimination analysis with Bayesian discriminant function is consistent with the exploration practice,and can be used to evaluate the reservoir in the study area.

关 键 词：砂质碎屑流 储层分类 贝叶斯判别 储层评价 

分 类 号：TE19[石油与天然气工程—油气勘探]