罗庆,张金友,陈国松,孔凡顺,臧伟,王现华,刘强,胡峰
Luo Qing,Zhang Jinyou,Chen Guosong,Kong Fanshun,Zang Wei,Wang Xianhua,Liu Qiang,Hu Feng

• 1:多资源协同陆相页岩油绿色开采全国重点实验室
• 2:中国石油大庆油田有限责任公司勘探开发研究院

摘要(Abstract)：

目前对大庆长垣南部敖包塔油田扶余油层控储因素的研究主要集中在沉积相方面，缺乏对成岩控储作用的分析，制约了甜点评价指标体系的建立。基于薄片鉴定、全岩分析、扫描电镜和黏土X衍射等实验分析资料，建立以胶结作用减孔率和压实作用减孔率为核心的成岩相划分图版，并明确勘探开发井位部署优选甜点。结果表明：压实、胶结和溶蚀作用是主要成岩作用类型，压实作用是主要的减孔因素，胶结作用次之；压实作用具备强筛选效应，可淘汰脆弱孔隙，保留抗压性强、连通性好的通道；胶结作用具有强分异作用，孔隙局部沉淀致使孔隙半径分布极不均一；研究区扶余油层储层可划分为5种成岩相，甜点靶区优先锁定强压实-极弱胶结相，规避弱压实-强胶结相。研究成果对于重新评价大庆长垣南部敖包塔油田致密油甜点主控因素，以及支撑甜点评价指标体系的建立具有重要指导意义。
Current research on the reservoir-controlling factors of Fuyu reservoir in Aobaota oilfield of southern Daqing Placanticline mainly focuses on sedimentary facies, while insufficient analysis of diagenetic control on reservoirs hinders the establishment of sweet-spot evaluation index system. Based on experimental data such as thin-section identification, whole-rock analysis, scanning electron microscopy and clay X-ray diffraction, charts for diagenetic facies classification with cementation porosity reduction rate and compaction porosity reduction rate as the core are established to clarify sweet spots for exploration, development and well deployment. The results show that the main diagenesis types include compaction, cementation and dissolution, with compaction being the primary factor in porosity reduction, followed by cementation. Compaction exhibits strong screening effect, eliminating fragile pores while preserving pathways with high compaction resistance and good connectivity. Cementation demonstrates strong differentiation, with localized pore precipitation leading to highly uneven pore radius distribution. 5 types of diagenetic facies are identified in Fuyu reservoir in studied area, with strong compaction-extremely weak cementation facies prioritized for target sweet-spot area and weak compaction-strong cementation facies being avoided. The research provides significant guidance for reevaluating the main controlling factors of tight oil sweet spots in Aobaota oilfield of southern Daqing Placanticline and supporting the establishment of sweet-spot evaluation index system.

关键词(KeyWords)： 敖包塔油田;扶余油层;致密油;成岩作用;孔隙度
Aobaota oilfield;Fuyu reservoir;tight oil;diagenesis;porosity

Abstract:

Keywords:

基金项目(Foundation): 中国石油天然气股份有限公司重大科技专项“松辽盆地致密油规模效益增储关键技术研究”（2025YQXN201）

作者(Author): 罗庆,张金友,陈国松,孔凡顺,臧伟,王现华,刘强,胡峰
Luo Qing,Zhang Jinyou,Chen Guosong,Kong Fanshun,Zang Wei,Wang Xianhua,Liu Qiang,Hu Feng

DOI: 10.19597/J.ISSN.1000-3754.202504071

参考文献(References)：

• [1]杜金虎.中国陆相致密油[M].北京：石油工业出版，2016.Du Jinhu. Continental tight oil in China[M]. Beijing:Petroleum Industry Press,2016.
• [2]邹才能，朱如凯，陶士振，等.非常规油气地质[M].北京：石油工业出版，2017.Zou Caineng, Zhu Rukai, Tao Shizhen, et al. Unconventional petroleum geology[M]. Beijing:Petroleum Industry Press,2017.
• [3]Er Chuang,Zhao Jinzhou,Li Yangyang,et al. Relationship between tight reservoir diagenesis and hydrocarbon accumulation:an example from the early Cretaceous Fuyu reservoir in the Daqing Oilfield,Songliao Basin,China[J]. Journal of Petroleum Science and Engineering,2022,208:109422.
• [4]GB/T 34906—2017致密油地质评价方法[S].GB/T 34906-2017 Geological evaluating methods for tight oil[S].
• [5]Nabawy B S,Abudeif A M,Masoud M M,et al. An integrated workflow for petrophysical characterization,microfacies analysis,and diagenetic attributes of the Lower Jurassic type section in northeastern Africa margin:implications for subsurface gas prospection[J]. Marine and Petroleum Geology, 2022, 140:105678.
• [6]Boutaleb K, Baouche R, Sadaoui M, et al. Sedimentological,petrophysical, and geochemical controls on deep marine unconventional tight limestone and dolostone reservoir:insights from the Cenomanian/Turonian oceanic anoxic event 2 organic-rich sediments,Southeast Constantine Basin,Algeria[J]. Sedimentary Geology,2022,429:106072.
• [7]Kassem A A,Hussein W S,Radwan A E,et al. Petrographic and diagenetic study of siliciclastic Jurassic sediments from the northeastern margin of Africa:implication for reservoir quality[J]. Journal of Petroleum Science and Engineering, 2021,200:108340.
• [8]Wang Ai,Zhong Dakang,Zhu Haihua,et al. Depositional and diagenetic controls on the reservoir quality of Upper Triassic Chang-7 tight oil sandstones,southwestern Ordos Basin,China[J]. Geosciences Journal,2019,23(3):471-488.
• [9]Zhang Baoliang,Shen Baotang,Zhang Jinhu,et al. Experimental study of edge-opened cracks propagation in rock-like materials[J]. Journal of Mining and Strata Control Engineering,2020,2(3):033035.
• [10]Abdel-fattah M I, Sen S, Abuzied S M, et al. Facies analysis and petrophysical investigation of the late Miocene Abu Madi sandstones gas reservoirs from offshore Baltim East field(Nile Delta, Egypt)[J]. Marine and Petroleum Geology, 2022,137:105501.
• [11]邓庆杰，胡明毅，胡忠贵，等.浅水三角洲分流河道砂体沉积特征：以松辽盆地三肇凹陷扶Ⅱ—Ⅰ组为例[J].石油与天然气地质，2015,36(1):118-127.Deng Qingjie, Hu Mingyi, Hu Zhonggui, et al. Sedimentary characteristics of shallow-water delta distributary channel sand bodies:a case fromⅡ-ⅠFormation of Fuyu oil layer in the Sanzhao Depression, Songliao Basin[J]. Oil&Gas Geology,2015,36(1):118-127.
• [12]唐振兴，赵家宏，王天煦.松辽盆地南部致密油“甜点区（段）”评价与关键技术应用[J].天然气地球科学，2019,30(8):1114-1124.Tang Zhenxing, Zhao Jiahong, Wang Tianxu. Evaluation and key technology application of“sweet area”of tight oil in southern Songliao Basin[J]. Natural Gas Geoscience,2019,30(8):1114-1124.
• [13]白雪峰，陆加敏，李军辉，等.松辽盆地北部全油气系统成藏模式与勘探潜力[J].大庆石油地质与开发，2024,43(3):49-61.Bai Xuefeng,Lu Jiamin,Li Junhui,et al. Hydrocarbon accumulation patterns and exploration potential of whole petroleum systems in northern Songliao Basin[J]. Petroleum Geology&Oilfield Development in Daqing,2024,43(3):49-61.
• [14]朱国文，王小军，白雪峰，等.松辽盆地北部致密油勘探新领域及资源潜力[J].石油学报，2025,46(1):33-47.Zhu Guowen,Wang Xiaojun,Bai Xuefeng,et al. New exploration fields and resource potential of tight oil in northern Songliao Basin[J]. Acta Petrolei Sinica,2025,46(1):33-47.
• [15]蒙启安，李春柏，白雪峰，等.松辽盆地北部油气勘探历程与启示[J].新疆石油地质，2021,42(3):264-271.Meng Qi’an,Li Chunbai,Bai Xuefeng,et al. Petroleum exploration history and enlightenment in the northern Songliao Basin[J]. Xinjiang Petroleum Geology,2021,42(3):264-271.
• [16]张赫，王小军，贾承造，等.松辽盆地北部中浅层全油气系统特征与油气成藏聚集模式[J].石油勘探与开发，2023,50(4):683-694.Zhang He,Wang Xiaojun,Jia Chengzao,et al. Total petroleum system and hydrocarbon accumulation model in shallow and medium strata in northern Songliao Basin,NE China[J]. Petroleum Exploration and Development,2023,50(4):683-694.
• [17]李国会，康德江，姜丽娜，等．松辽盆地北部扶余油层致密油成藏条件及甜点区优选[J]．天然气地球科学，2019,30(8):1106-1113.Li Guohui,Kang Dejiang,Jiang Li’na,et al. Geological condition and sweet area selection of Fuyu Formation in the north of Songliao Basin[J].Natural Gas Geoscience,2019,30(8):1106-1113.
• [18]Wei Wei, Zhu Xiaomin, Meng Yuanlin, et al. Porosity model and its application in tight gas sandstone reservoir in the southern part of West Depression,Liaohe Basin,China[J]. Journal of Petroleum Science and Engineering,2016,141:24-37.
• [19]Chen Guosong,Meng Yuanlin,Huan Jinlai,et al. A new predrilling reservoir permeability prediction model and its application[J]. Journal of Petroleum Science and Engineering, 2022,210:110086.
• [20]Ehrenberg S N.Assessing the relative importance of compaction processes and cementation to reduction of porosity in sandstones:discussion; compaction and porosity evolution of Pliocene sandstones,Ventura Basin,California:discussion[J]. AAPG Bulletin,1989,73(10):1274-1276.
• [21]Drief A, Nieto F. Chemical composition of smectites formed in clastic sediments:implications for the smectite-illite transformation[J]. Clay Minerals,2000,35(4):665-678.
• [22]Frohlich S,Redfern J,Petitpierre L,et al. Diagenetic evolution of incised channel sandstones:implications for reservoir characterisation of the lower carboniferous Marar Formation,Ghadames Basin, western Libya[J]. Journal of Petroleum Geology,2010,33(1):3-18.
• [23]Mork M B E. Diagenesis and quartz cement distribution of low-permeability Upper Triassic-Middle Jurassic reservoir sandstones,Longyearbyen CO2 lab well site in Svalbard, Norway[J].AAPG Bulletin,2013,97(4):577-596.
• [24]Yuan Guanghui,Cao Yingchang,Zan Nianmin,et al. Coupled mineral alteration and oil degradation in thermal oil-water-feldspar systems and implications for organic inorganic interactions in hydrocarbon reservoirs[J]. Geochemica et Cosmochimica Acta,2019,648:61-87.
• [25]Yuan Guanghui,Cao Yingchang,Jia Zhenzhen,et al. Selective dissolution of feldspars in the presence of carbonates:the way to generate secondary pores in buried sandstones by organic CO2[J]. Marine and Petroleum Geology,2015,60:105-119.
• [26]Lundegard P D, Land L S. Carbon dioxide and organic acids:their role in porosity enhancement and cementation,Paleogene of the Texas Gulf Coast[M]. Colorado:Roles of Organic Matter in Sediment Diagenesis,1986.
• [27]Hutcheon I, Shevalier M, Abercrombie H J. pH buffering by metastable mineral-fluid equilibria and evolution of carbon dioxide fugacity during burial diagenesis[J]. Geochimica et Cosmochimica Acta,1993,57(5):1017-1027.
• [28]王小军，白雪峰，陆加敏，等.松辽盆地北部油气勘探新领域、新类型及资源潜力[J].石油学报，2023,44(12):2091-2103,2178.Wang Xiaojun, Bai Xuefeng, Lu Jiamin, et al. New fields,types and resource potentials of oil-gas exploration in northern Songliao Basin[J]. Acta Petrolei Sinica, 2023, 44(12):2091-2103,2178.