砂质辫状河岩相与构型特征——以山西大同盆地中侏罗统云冈组露头为例

doi:10.11743/ogg20150114

Abstract

Abstract:

Sandy braided river deposits have excellent physical properties, thus are important oil/gas reservoirs.In order to demonstrate the lithofacies and architectural characteristics of the sandy braided river reservoirs, and quantify the geometric properties and physical properties of architectural units, a systematic study for outcrops of sandy braided river deposits in the Middle Jurassic Yungang Formation in the Datong Basin has been conducted on the basis of outcrop observation, detailed interpretation of architectures, and laboratory analysis.Seven types of lithofacies in five associations have been identified.Five typical architectural units were identified in the sandy braided river deposits, including channel (CH), channel bar (CB), point bar (PB), abandoned channel (ACH), and overflowing sediments (OF).Among these architectural units, the channel and channel bar are the main architectural units with accumulative distribution frequency up to 78%.The thickness of channels ranges from 2.5 m to 6.5 m, width/thickness ratio is about 25-30, and the average porosity is 7.1%.The thickness of channel bars ranges from 2.5 m to 7.0 m, width/thickness ratio is about 30-35, and the average porosity is 7.8%.During the same depositional period, four basic combination types of the architectural units developed in the sandy braided river, namely CH-OF, CH/ACH-PB, CH-CB-CH, and CH/ACH-PB-OF.The spatial distribution of the architectural units in the different depositional periods is characterized by superposition or repetition of these four basic combination types in vertical and lateral.Channel and channel bar are the major reservoir types in the sandy braided river deposits, but the scale and physical properties of the later are better than the former.

Key words: architectural unit, oil/gas reservoir, reservoir property, sandy braided river, lithofacies, outcrop, Datong Basin

CLC Number:

TE121.3

Chen Bintao, Yu Xinghe, Wang Tianqi, Ma Fengliang, Li Shunli, Yang Lisha. Lithofacies and architectural characteristics of sandy braided river deposits:a case from outcrops of the Middle Jurassic Yungang Formation in the Datong Basin, Shanxi Province[J]. Oil & Gas Geology, 2015, 36(1): 111-117.

References

[1] Miall A D.A review of the braided-river depositional environment[J].Earth Science Reviews,1977,13(1):1-62.
[2] 于兴河.油气储层表征与随机建模的发展历程及展望[J].地学前缘,2008,15(1):1-15. Yu Xinghe.A review of development course and prospect of petroleum reservoir characterization and stochastic modeling[J].Earth Science Frontiers,2008,15(1):1-15.
[3] 白振瑞,邢凤存,李会宪.柯坪露头区柯坪塔格组河流作用为主的三角洲沉积特征及其油气勘探意义[J].石油与天然气地质,2012,33(2):217-224. Bai Zhenrui,Xing Fengcun,Li Huixian.Sedimentary features of fluvial-dominated delta in the Kepingtage Fm in Keping outcrop area and their significance for petroleum exploration[J].Oil & Gas Geo-logy,2012,33(2):217-224.
[4] 吴胜和,纪友亮,岳大力,等.碎屑沉积地质体构型分级方案探讨[J].高校地质学报,2013,19(1):12-22. Wu Shenghe,Ji Youliang,Yue Dali,et al.Discussion on hierarchical scheme of architectural units in clastic deposits[J].Geological Journal of China Universities,2013,19(1):12-22.
[5] 封从军,鲍志东,单启铜,等.三角洲平原复合分流河道内部单砂体划分——以扶余油田中区南部泉头组四段为例[J].石油与天然气地质,2012,33(1):77-83. Feng Congjun,Bao Zhidong,Shan Qitong,et al.Single sand body identification in compound distributary channel of delta plain:a case study from the fourth member of Quantou Formation in the southern part of central Fuyu oilfield[J].Oil & Gas Geology,2012,33(1):77-83.
[6] 曾祥平.储集层构型研究在油田精细开发中的应用[J].石油勘探与开发,2010,37(4):483-489. Zeng Xiangping.Application of reservoir structure research in the fine exploitation of oilfields[J].Petroleum Exploration and Development,2010,37(4):483-489.
[7] 岳大力,吴胜和,刘建民.曲流河点坝地下储层构型精细解剖方法[J].石油学报,2007,28(4):99-103. Yue Dali,Wu Shenghe,Liu Jianmin.An accurate method for anatomizing architecture of subsurface reservoir in point bar of meandering river[J].Acta Petrolei Sinica,2007,28(4):99-103.
[8] Donselaar M E,Overeem I.Connectivity of fluvial point-bar deposits:An example from the Miocene Huesca fluvial fan,Ebro Basin,Spain[J].AAPG Bulletin,2008,92(9):1109-1129.
[9] 陈彬滔,于兴河,潘树新,等.准噶尔盆地南缘头屯河组曲流河沉积特征与成因砂体对比方法[J].天然气地球科学,2013,24(6):1132-1139. Chen Bintao,Yu Xinghe,Pan Shuxin,et al.Sedimentary characteristics and sedimentogenic-based sandbodies correlation methods of meandering river in Toutunhe Formation,southern margin of Junggar Basin[J].Natural Gas Geoscience,2013,24(6):1132-1139.
[10] Pranter M J,Ellison A I,Cole R D,et al.Analysis and modeling of intermediate-scale reservoir heterogeneity based on a fluvial point-bar outcrop analog,Williams Fork Formation,Piceance Basin,Colorado[J].AAPG Bulletin,2007,91(7):1025-1051.
[11] 马世忠,孙雨,范广娟,等.地下曲流河道单砂体内部薄夹层建筑结构研究方法[J].沉积学报,2008,26(4):632-639. Ma Shizhong,Sun Yu,Fan Guangjuan,et al.The method for studying thin interbed architecture of burial meandering channel sandbody[J].Acta Sedimentologica Sinica,2008,26(4):632-639.
[12] Bridge J S,Tye R S.Interpreting the dimensions of ancient fluvial channel bars,channels,and channel belts from wire-line logs and cores[J].AAPG Bulletin,2000,84(8):1205-1228.
[13] 王俊辉,姜在兴,张元福,等.三角洲沉积的物理模拟[J].石油与天然气地质,2013,34(6):758-764. Wang Junhui,Jiang Zaixing,Zhang Yuanfu,et al.Physical simulation of deltaic deposits[J].Oil & Gas Geology,2013,34(6):758-764.
[14] 王改云,杨少春,廖飞燕,等.辫状河储层中隔夹层的层次结构分析[J].天然气地球科学,2009,20(3):378-383. Wang Gaiyun,Yang Shaochun,Liao Feiyan,et al.Hierarchical structure of barrier beds and interbeds in braided river reservoirs[J].Natural Gas Geoscience,2009,20(3):378-383.
[15] 李顺明,宋新民,蒋有伟,等.高尚堡油田砂质辫状河储集层构型与剩余油分布[J].石油勘探与开发,2011,38(4):474-482. Li Shunmin,Song Xinming,Jiang Youwei,et al.Architecture and remaining oil distribution of the sandy braided river reservoir in the Gaoshangpu Oilfield[J].Petroleum Exploration and Development,2011,38(4):474-482.
[16] 陈彬滔,于兴河,王天奇,等.岱海湖盆沿坡流与顺坡流相互作用的沉积响应[J].地球科学-中国地质大学学报,2014,39(4):399-410. Chen Bintao,Yu Xinghe,Wang Tianqi,et al.Sedimentary response to interaction between alongslope and downslope currents in Daihai Lake,North China[J].Earth Science-Journal of China University of Geosciences,2014,39(4):399-410.
[17] Lynds R,Hajek E.Conceptual model for predicting mudstone dimensions in sandy braided-river reservoirs[J].AAPG Bulletin,2006,90(8):1273-1288.
[18] 杨丽莎,陈彬滔,李顺利,等.基于成因类型的砂质辫状河泥岩分布模式-以山西大同猪罗系砂质辫状河露头为例[J].天然气地球科学,2013,24(1):93-98. Yang Lisha,Chen Bintao,Li Shunli,et al.Pattern of genesis-based mudstone distribution for braided river:A case study of sandy braided-river outcrop,Datong,Shanxi province,China[J].Natural Gas Geoscience,2013,24(1):93-98.
[19] 刘钰铭,侯加根,宋保全,等.辫状河厚砂层内部夹层表征-以大庆喇嘛甸油田为例[J].石油学报,2011,32(5):836-841. Liu Mingyu,Hou Jiagen,Song Baoquan,et al.Characterization of interlayers within braided-river thick sandstones:A case study on the Lamadian Oilfield in Daqing[J].Acta Petrolei Sinica,2011,32(5):836-841.
[20] 刘卫,丁亚军,彭光艳,等.基于界面约束法的曲流河点坝内部构型建筑模[J].油气地质与采收率,2014,21(3):33-35,40. Liu Wei,Ding Ya,Peng Gangyan,et al.Study on characterization of point bararchitecture based on surface constrain[J].Petroleum Geology and Recovery Efficiency,2014,21(3):33-35,40.
[21] 董清水,孙雷,楼仁兴,等.松辽盆地南部小城子地区下白垩统泉一段辫状河沉积判识标志与分布特征[J].石油实验地质,2014,36(2):129-135. Dong Qingshui,Sun Lei,Lou Renxing,et al.Determinative marks and distribution characteristics of braided river deposits in Ist section of Quantou Formation of Lower Cretaceous in Xiaochengzi area,southern Songliao Basin[J].Petroleum Geology & Experiment,2014,36(2):129-135.
[22] 尚鲁宁,吕大炜,李增学,等.琼东南盆地崖南凹陷崖城组辫状河三角洲沉积特征及油气地质意义[J].油气地质与采收率,2013,20(5):4-9. Shang Luning,LüDawei,Li Zengxue,et al.Depositional characteristics and petroleum geology significance of braided delta system in Yacheng formation,Yanan sag,Qiongdongnan basin[J].Petroleum Geology and Recovery Efficiency,2013,20(5):4-9.
[23] 房煦.非近海河流相层序地层学探讨——以济阳坳陷新近系为例[J].油气地质与采收率,2014,21(6):10-14. Fang Xu.Discussion on non-coastal fluvial facies sequence stratigraphy:an example from the Neogene in Jiyang depression[J].Petroleum Geology and Recovery Efficiency,2014,21(6):10-14.
[24] 王随继.大同盆地中侏罗世河流沉积体系及古河型演化[J].沉积学报,2001,19(4):501-505. Wang Suiji.Fluvial depositional systems and river pattern evolution of middle Jurassic series,Datong Basin[J].Acta Sedimentologica Sinica,2001,19(4):501-505.
[25] Yu X,Ma X,Qing H.Sedimentology and reservior characteristics of a Middle Jurassic fluvial system,Datong Basin,Northern China[J].Bulletin of Canadian Petroleum Geology,2002,50(1)

Lithofacies and architectural characteristics of sandy braided river deposits:a case from outcrops of the Middle Jurassic Yungang Formation in the Datong Basin, Shanxi Province

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles

Metrics

[1]	Cheng Shen, Lan Ren, Jinzhou Zhao, Mingpei Chen. Division of shale lithofacies associations and their impact on fracture network formation in the Silurian Longmaxi Formation, Sichuan Basin [J]. Oil & Gas Geology, 2021, 42(1): 98-106, 123.
[2]	Xunyu Cai, Guiqiang Qiu, Dongsheng Sun, Hongquan Zhu, Wei Wang, Zhiping Zeng. Types and characteristics of tight sandstone sweet spots in large basins of central-western China [J]. Oil & Gas Geology, 2020, 41(4): 684-695.
[3]	Yuan Deng, Shiyue Chen, Xiugang Pu, Jihua Yan, Jia Chen. Formation mechanism and environmental evolution of fine-grained sedimentary rocks from the second member of Kongdian Formation in the Cangdong Sag, Bohai Bay Basin [J]. Oil & Gas Geology, 2020, 41(4): 811-823, 890.
[4]	Zeng Lianbo, Lyu Peng, Qu Xuefeng, Fan Jianming. Multi-scale fractures in tight sandstone reservoirs with low permeability and geological conditions of their development [J]. Oil & Gas Geology, 2020, 41(3): 449-454.
[5]	Zhao Jianhua, Jin Zhijun, Lin Changsong, Liu Guangxiang, Liu Keyu, Liu Zhongbao, Zhang Yuying. Sedimentary environment of the Lower Cambrian Qiongzhusi Formation shale in the Upper Yangtze region [J]. Oil & Gas Geology, 2019, 40(4): 701-715.
[6]	Peng Li, Wu Yiming, Lian Zhanggui, Peng Peng, Wang Jian, Su Zhou, Yi Zhenli. Features and sedimentary evolution of high-frequency sequence in continental lacustrine rift basin: Example of the lower Shahejie member 3 in Jiyang Depression，Bohai Bay Basin [J]. Oil & Gas Geology, 2019, 40(4): 789-798.
[7]	Pang Shuyi, Cao Yingchang, Liang Chao. Lithofacies characteristics and sedimentary environment of Es^4U and Es^3L: A case study of Well FY1 in Dongying sag, Bohai Bay Basin [J]. Oil & Gas Geology, 2019, 40(4): 799-809.
[8]	Wang Qinglong, Han Jianfa, Li Hao, Sun Yanda, He Haiquan, Ren Shijun. Carbonate sequence architecture, sedimentary evolution and sea level fluctuation of the Middle and Lower Ordovician on outcrops at the northwestern margin of Tarim Basin [J]. Oil & Gas Geology, 2019, 40(4): 835-850,916.
[9]	Lin Jianli, Zhang Xianguo, Lin Chengyan, Duan Dongping, Huang Xin, Sun Xiaolong, Dong Chunmei. Diagenetic evolution characteristics constrained by lithofacies in deep tight sand gas reservoir [J]. Oil & Gas Geology, 2019, 40(4): 886-899.
[10]	Liu Xiwu, Liu Yuwei, Liu Zhiyuan, Song Liang, Liu Jiong, Huo Zhizhou, Zhang Jinqiang, Qian Keran, Zhang Yingyan. Progresses in geophysical characterization of continental shale oil sweet spots [J]. Oil & Gas Geology, 2019, 40(3): 504-511.
[11]	Liu Huimin, Zhang Shun, Bao Youshu, Fang Zhengwei, Yao Suping, Wang Yong. Geological characteristics and effectiveness of the shale oil reservoir in Dongying sag [J]. Oil & Gas Geology, 2019, 40(3): 512-523.
[12]	Chen Dongyang, Wang Feng, Chen Hongde, Wei Xinshan, Sun Shi, Zhu Shengxian. Characterization of braided river reservoir architecture of the Upper Paleozoic He 8 member on Fugu Tianshengqiao outcrop,eastern Ordos Basin [J]. Oil & Gas Geology, 2019, 40(2): 335-345.
[13]	Hu Mingyi, Sun Chunyan, Gao Da. Characteristics of tectonic-lithofacies paleogeography in the Lower Cambrian Xiaoerbulake Formation,Tarim Basin [J]. Oil & Gas Geology, 2019, 40(1): 12-23.
[14]	Sun Shasha, Rui Yun, Dong Dazhong, Shi Zhensheng, Bai Wenhua, Ma Chao, Zhang Leifu, Wu Jin, Chang Yan. Paleogeographic evolution of the Late Ordovician-Early Silurian in Upper and Middle Yangtze regions and depositional model of shale [J]. Oil & Gas Geology, 2018, 39(6): 1087-1106.
[15]	Zhu Tong, Hu Zongquan, Liu Zhongbao, Feng Dongjun. Types and evaluation of the source-reservoir configuration of lacustrine shale gas in the Sichuan Basin [J]. Oil & Gas Geology, 2018, 39(6): 1146-1153.