地质与资源2025，Vol.34Issue(2)：192-199,176,9.DOI:10.13686/j.cnki.dzyzy.2025.02.006
大庆油田B90井区SⅠ油层组沉积微相研究
Sedimentary microfacies of S Ⅰ oil formation in B90 well block of Daqing Oilfield
摘要
Abstract
The SⅠ oil formation in the B90 well block of Daqing Oilfield has large oil-gas reserves.However,the undetailed previous studies on its sedimentary microfacies restricted further exploration and development.To improve the potential exploitation efficiency,this study uses the closed skeleton profile control correlation method for fine stratigraphic division,constructs the closed skeleton profiles across the whole area with 5 transverse profiles and 5 longitudinal profiles,and establishes the high-frequency isochronous stratigraphic framework of SⅠ oil formation.Besides,the sedimentary microfacies of 5 sedimentary time units are studied based on core and well logging data.The results show that narrow and isolated underwater distributary channels and large area of sheet sand deposits are developed in the area,and the sheet sand is mainly controlled by stream action and wave modification.The delta front subfacies are developed in the SⅠ oil formation,with microfacies such as underwater distributary channel,sheet sand body,sheet sand,inner edge of sheet sand and outer edge of sheet sand.The sedimentary period of the S Ⅰ oil formation is a small rapid evolutionary sequence from water regression to water transgression.关键词
沉积微相/萨尔图油层/三角洲前缘/测井微相模式/松辽盆地Key words
sedimentary microfacies/Sartu oil formation/delta front/logging microfacies model/Songliao Basin分类
天文与地球科学引用本文复制引用
赵文同,范广娟,宋鑫,刘培雨,王井向,董婷,赵延南,刘文庆..大庆油田B90井区SⅠ油层组沉积微相研究[J].地质与资源,2025,34(2):192-199,176,9.基金项目
国家自然科学基金项目"基于高密开发井网的大型河控三角洲水下曲-直河型转化机制及构型变化研究"(42002154) （42002154）
黑龙江省自然科学基金项目"多级边界约束的曲流河三维构型及其对剩余油分布控制研究"(LH2024-D009). （LH2024-D009）
