塔南凹陷南二段小层划分及沉积微相研究  

Sub-layer division and sedimentary microfacies of southern second member of Tanan Depression

作　　者：张昊 马世忠[1] 王胡振[2] 李斌[3] Zhang Hao;Ma Shizhong;Wang Huzhen;Li Bin(Earth Sciences College,Northeast Petroleum University,Daqing 163318,China;Petroleum Engineering College,Northeast Petroleum University,Daqing 163318,China;PetroChina Daqing Tamchage Co.,Ltd.,Daqing 163453,China)

机构地区：[1]东北石油大学地球科学学院,黑龙江大庆163318 [2]东北石油大学石油工程学院,黑龙江大庆163318 [3]中国石油大庆塔木察格有限责任公司,黑龙江大庆163453

出　　处：《能源与环保》2021年第9期121-127,133,共8页CHINA ENERGY AND ENVIRONMENTAL PROTECTION

基　　金：中国石油大庆塔木察格有限责任公司科技项目计划(DQYT-2020-JS-100)。

摘　　要：对塔南油田地层进行精细等时对比及沉积微相精细刻画是当下油田急需解决的关键问题,依据野外露头、测井、岩心和三维高分辨率地震反射资料,针对塔南油田研究区A、B、C、D、E五断块南屯组二段地层扇三角洲沉积体系,建立小层级别的地层对比格架,对全区小层进行高分辨率层序地层对比,并进行单井、连井及平面沉积相分析。研究得出,该地区地质构造复杂,断层发育,南屯组二段地层微相类型包括水下分流河道、河口坝、席状砂、远砂坝等。建立了研究区南二段扇三角洲沉积体系由早期的水进到晚期的快速水退的沉积模式。并把沉积时间单元微相图与小层油水分布平面图、油层有效厚度、孔隙度、渗透率相结合来对研究区的油水分布进行精确认识。研究为下一步塔南油田勘探开发提供指导。The precise isochronous comparison and fine description of sedimentary microfacies of the Tanan Oilfield were key issues that urgently need to be solved in the current oilfield.The stratigraphic fan delta sedimentary system of the second member of Nantun Formation in fault blocks B,C,D and E5 was to establish a stratigraphic correlation framework of small strata,well and plane sedimentary facies analysis.The study concluded that the geological structure of this area was complex and faults are developed.The types of microfacies in the second member of Nantun Formation included underwater distributary channels,estuary dams,sheet sands and remote sand dams.The fan delta sedimentary system of the second member of the southern member of the study area had been established from the early stage of water advance to the late stage of rapid retreat.And combined the sedimentary time unit micro-phase diagram with the small-layer oil-water distribution plan,the effective thickness of the oil layer,porosity,and permeability to accurately understood the oil-water distribution in the study area.The research provided guidance for the exploration and development of the Tanan Oilfield in the next step.

关 键 词：塔南凹陷 南屯组 高分辨率层序地层学 沉积微相 

分 类 号：P611.1[天文地球—矿床学]