松辽盆地北部徐家围子断陷沙河子组致密气储层成岩作用与成岩相特征

doi:10.13278/j.cnki.jjuese.20190258

摘要/Abstract

摘要： 致密储层成因及有利储层分布预测是制约当前徐家围子断陷沙河子组致密气勘探的关键因素。本次研究综合运用沙河子组普通薄片、铸体薄片、扫描电镜、阴极发光、电子探针、X衍射及物性测试等多种资料，系统分析徐家围子断陷沙河子组致密砂砾岩成岩作用特征。结果表明：研究区沙河子组可划分为强压实泥质杂基充填成岩相、中压实长石岩屑溶蚀成岩相、中压实石英次生加大成岩相、中压实绿泥石环边胶结成岩相和弱压实碳酸盐胶结成岩相等5种成岩相；由沉积作用形成的碎屑矿物组分、结构差异是各成岩相成岩演化的物质基础，决定了其初始孔隙度的差异；强压实和黏土杂基充填是造成砂砾岩储层物性损失的主要原因，长石岩屑溶蚀和绿泥石环边胶结有利于物性保持和改善。不同成岩相中成岩作用类型和强度各不相同导致不同成岩相间宏观物性和微观孔隙结构差异，其中中压实长石岩屑溶蚀成岩相和中压实绿泥石环边胶结成岩相是沙河子组储层最有利的成岩相带。

关键词: 成岩作用, 致密砂岩, 孔隙演化, 沙河子组, 徐家围子断陷

Abstract: The genesis and distribution of tight sandstones are the key factors that restrict the exploration of tight gas in Shahezi Formation. We studied the diagenetic characteristics of tight sandstones in Shahezi Formation and divided it into 5 kinds of diagenetic facies according to the multiple qualitative and quantitative parameters and on the basis of making full use of core, thin-section, SEM, physical properties and X-ray analysis. They are strongly compacted argillaceous filling facies, moderately compacted feldspar detritus dissolution facies, moderately compacted quartz secondary enlargement facies, moderately compacted chlorite rim cementation facies, and weakly compacted carbonate cementation facies. The different mineral constituent and texture of clastic rocks controlled by sedimentation are the material basis and origin of porosity evolution of different diagenetic facies, the compaction and filling of matrix are the material cause that lead to the loss of porosity in early diagenetic system, and the physical properties are retained and improved by the chlorite rim cementation and feldspar detritus dissolution. The type and intensity of diagenesis are different in different diagenetic facies, which results in the difference of macro properties and micro pore structures. The moderately compacted chlorite rim cementation facies and moderately compacted feldspar detritus dissolution facies show the best reservoir quality in Shahezi Formation, which can be taken as the best future exploration target in the study area.

Key words: diagenesis, tight sandstone, porosity evolution, Shahezi Formation, Xujiaweizi falut depression

中图分类号:

P618.13

张大智, 初丽兰, 周翔, 王晓莲, 李鑫. 松辽盆地北部徐家围子断陷沙河子组致密气储层成岩作用与成岩相特征[J]. 吉林大学学报(地球科学版), 2021, 51(1): 22-34.

Zhang Dazhi, Chu Lilan, Zhou Xiang, Wang Xiaolian, Li Xin. Diagenesis and Diagenesis Facies of Tight Gas Reservoir of Shahezi Formation, in Xujiaweizi Fault Depression of North Songliao Basin[J]. Journal of Jilin University(Earth Science Edition), 2021, 51(1): 22-34.

参考文献

[1] 邹才能,翟光明,张光亚,等.全球常规-非常规油气形成分布、资源潜力及趋势预测[J].石油勘探与开发,2015,42(1):13-25. Zou Caineng, Zhai Guangming, Zhang Guangya, et al. Formation, Distribution, Potential and Prediction of Global Conventional and Unconventional Hydrocarbon Resources[J]. Petroleum Exploration and Development,2015,42(1):13-25.
[2] 康玉柱.中国致密岩油气资源潜力及勘探方向[J].天然气工业,2016,36(10):10-18. Kang Yuzhu. Resource Potential of Tight Sand Oil & Gas and Exploration Orientation in China[J].Natural Gas Industry,2016,36(10):10-18.
[3] 贾承造,邹才能,李建忠,等.中国致密油评价标准、主要类型、基本特征及资源前景[J].石油学报,2012,33(3):343-350. Jia Chengzao, Zou Caineng, Li Jianzhong, et al.Assessment Criteria,Main Types,Basic Features and Resource Prospects of the Tight Oil in China[J].Acta Petrolei Sinica,2012,33(3):343-350.
[4] 李建忠,郭彬程,郑民,等.中国致密砂岩气主要类型、地质特征与资源潜力[J].天然气地球科学,2012,23(4):607-615. Li Jianzhong, Guo Bincheng, Zheng Min, et al.Main Types,Geological Features and Reservoir Resources Potential of Tight Sandstones Gas in China[J]. Natural Gas Geosciences, 2012,23(4):607-615.
[5] 朱筱敏,潘荣,朱世发,等.致密储层研究进展和热点问题分析[J].地学前缘,2018,25(2):141-146. Zhu Xiaomin, Pan Rong, Zhu Shifa, et al. Research Progress and Core Issues in Tight Reservoir Exploration[J].Earth Science Fronties,2018,25(2):141-146.
[6] 陈海峰,王凤启,王民.徐家围子断陷沙河子组致密砂砾岩气藏特征与资源潜力[J].中南大学学报(自然科学版),2018,49(1):141-149. Chen Haifeng, Wang Fengqi, Wang Min.Characteristic and Reservoir Potential of Tight Sandy Conglomerate Gas Reservoir in Shahezi Formation of Xujiaweizi Depression[J].Journal of Central South University(Natural Science),2018,49(1):141-149.
[7] 李浩,陆建林,李润磊,等.长岭断陷下白垩统湖相烃源岩形成古环境及主控因素[J].地球科学:中国地质大学学报,2017,42(10):1774-1786. Li Hao, Lu Jianlin, Li Runlei, et al.Generation Paleoenviroment and Its Controlling Factors of Low Cretaceous Lacustrine Hydrocarbon Source Rocks in Changling Depression,South Songliao Basin[J].Earth Science:Journal of China University of Geosciences,2017,42(10):1774-1786.
[8] 林敉若,操应长,葸克来,等.阜康凹陷东部斜坡带二叠系储层特征及控制因素[J].吉林大学学报(地球科学版),2018,48(4):991-1007. Lin Miruo, Cao Yingchang, Xi Kelai, et al.Characteristics and Controlling Factors of Permian Reservoirs in Eastern Slope of Fukang Sag[J]. Journal of Jilin University(Earth Science Edition),2018,48(4):991-1007.
[9] 张创,孙卫,高辉,等.鄂尔多斯盆地华池长8储层成岩相与孔隙度演化[J].地球科学:中国地质大学学报,2014,39(4):411-420. Zhang Chuang,Sun Wei,Gao Hui, et al.Reservoir Diagenetic Facies and Porosity Evolution Pathways of Chang 8 Formation in Huachi, Ordos Basin[J]. Earth Science:Journal of China University of Geosciences,2014,39(4):411-420.
[10] 李欢,王清斌,庞小军,等.渤海湾盆地辽东凹陷旅大29构造沙二段近源砂砾岩体优质储层形成机理[J].吉林大学学报(地球科学版),2019,49(2):294-309. Li Huan, Wang Qingbin, Pang Xiaojun, et al.Generation of High Quality Near Source Glutenite Reservoir of 2nd Member of Shahejie Formation in Lüda-29 Structure, Liaodong Sag, Bohai Bay Basin[J].Journal of Jilin University (Earth Science Edition),2019,49(2):294-309.
[11] 邵曌一,吴朝东,张大智,等.松辽盆地徐家围子断陷沙河子组储层特征及控制因素[J].石油与天然气地质,2019,40(1):101-108. Shao Zhaoyi, Wu Chaodong, Zhang Dazhi, et al.Reservoir Characteristics and Controlling Factors of Shahezi Formation in Xujiaweizi Fault Depression,Songliao Basin[J]. Oil & Gas Geology, 2019,40(1):101-108.
[12] 碎屑岩成岩阶段划分规范:SY/T 5477-2003[S].北京:石油工业出版社,2003. The Division of Diagenetic Stages in Clastic Rocks,Oil and Gas Industry Standard:SY/T 5477-2003[S].Beijing:Petroleum Industry Press,2003.
[13] 田建峰,陈振林,凡元芳,等.砂岩中自生绿泥石的产状、形成机制及其分布规律[J].矿物岩石地球化学通报,2008,27(2):200-205. Tian Jianfeng, Chen Zhenlin, Fan Yuanfang, et al.The Occurrence, Growth Mechanism and Distribution of Authigenic Chlorite in Sandstone[J].Bulletin of Mineralogy, Petrology and Geochemistry,2008,27(2):200-205.
[14] 陈贺贺,朱筱敏,陈纯芳,等.致密砂岩储层致密化与成藏史耦合关系研究:以鄂尔多斯南部镇原-泾川地区延长组长8油层组为例[J].沉积学报,2018,36(2):401-414. Chen Hehe, Zhu Xiaomin, Chen Chunfang, et al.The Coupling Relationship of Reservoir Densification History and Hydrocarbon Emplacement in Tight Sandstone Reservoir:A Case Study of the Chang 8 Oil Member, Yanchang Formation, Southern Ordos Basin[J]. Acta Sedimentologica Scinca,2018,36(2):401-414.
[15] 张顺存,黄立良,冯右伦,等.准噶尔盆地玛北地区三叠系百口泉组储层成岩相特征[J].沉积学报,2018,36(2):354-365. Zhang Shuncun, Huang Liliang, Feng Youlun, et al.Digenetic Facies of Triassic Baikouquan Formation in Mabei Area,Junggar Basin[J]. Acta Sedimentologica Sinica,2018,36(2):354-365.
[16] 高辉,孙卫.鄂尔多斯盆地合水地区长8储层成岩作用与有利成岩相带[J].吉林大学学报(地球科学版), 2010,40(3):542-548. Gao Hui, Sun Wei.Diagenesis and Favorable Diagenetic Facies of Chang 8 Reservoir in Heshui Area, Ordos Basin[J]. Journal of Jilin University(Earth Science Edition),2010,40(3):542-548.
[17] 王峰,陈蓉,田景春,等.鄂尔多斯盆地陇东地区长4+5油层组致密砂岩储层成岩作用及成岩相[J].石油与天然气地质,2014,35(2):199-206. Wang Feng, Chen Rong, Tian Jingchun, et al. Diagenesis and Diagenetic Facies of the Chang 4+5 Tight Sandston Reservoir in Longdong Area,Ordos Basin[J]. Oil & Gas Geology, 2014,35(2):199-206.
[18] 邹才能,陶士振,周慧,等.成岩相的形成、分类与定量评价方法[J].石油勘探与开发,2008,35(5):526-540. Zou Caineng, Tao Shizhen, Zhou Hui, et al. Genesis, Classification and Evaluation Method of Diagenetic Facies[J].Petroleum Exploration and Development,2008,35(5):526-540.
[19] 乔博,李婧娟,许克伟,等.鄂尔多斯盆地正宁地区长6段储层成岩相与孔隙演化[J].成都理工大学学报(自然科学版),2018,45(5):550-558. Qiao Bo, Li Jingjuan, Xu Kewei, et al. Digenentic Facies and Pore Evolution of Chang 6 Reservoir in the Zhengning Area, Ordos Basin, China[J].Journal of Chengdu University of Technology(Science & Technology Edition),2018,45(5):550-558.
[20] 周翔,何生,陈召佑,等.鄂尔多斯盆地代家坪地区长8段低孔渗砂岩成岩作用及成岩相[J].石油与天然气地质,2016,37(2):256-266. Zhou Xiang, He Sheng, Chen Zhaoyou, et al.Digenesis and Diagenetic Facies of Low Porosity and Permeability Sandstone in Member 8 of the Yanchang Formation in Daijiaping Area,Ordos Basin[J].Oil & Gas Geology,2016,37(2):256-266.
[21] Scherer M. Parameters Influencing Porosity in Sandstones:A Model for Sandstone Porosity Prediction[J]. AAPG Bulletin,1987,71(5):485-491.
[22] Jeffry D G.Origin and Growth Mechanism of Authigenic Chlorite in Sandstones of the Lower Vicksburg Formation,South Texas[J]. Journal of Sedimentary Research,2001,71(1):27-36.

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