Delta Front Outcrop Architecture Analysis of Permian Shanxi Formation in Chengjiazhuang, Liulin, East Ordos Basin
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摘要:
通过野外露头精细解剖,基于露头的岩性、沉积构造、颜色及沉积环境,开展了鄂尔多斯盆地东缘山西柳林成家庄地区二叠系山西组三角洲前缘砂体构型研究。结果表明:研究区共有10种岩相类型及7种沉积单元,根据沉积旋回特征及岩相组合类型,识别出了分流河道、分流砂坝、潮汐砂坝、河口坝、远砂坝、席状砂6种4级构型单元,它们又以复杂的组合方式构成三角洲前缘5级构型单元。构型单元的组合样式可分为垂向叠置、侧向拼接及孤立式3种。通过实地测量对构型单元进行了定量表征,分流河道、分流砂坝、河口坝、远砂坝砂体厚度和宽度之间存在线性关系,且具有较高的相关性,能够为地下构型单元建模提供一定的地质依据。
Abstract:Through detailed analysis of outcrop sections, based on lithology, sedimentary structures, colors and sedimentary environment, sand body architecture of delta front is researched in Chengjiazhuang district, east Ordos basin of Permian Shanxi formation. Results show that there are ten kinds of lithofacies and seven sedimentary units in the study area. According to sedimentary cycle and lithofacies assemblage characteristics, six types of fourth level architectural units, i.e., distributary channel, distributary bar, tide sand-dam, estuarine dam, distal bar and sheet sands are identified. They also formed fifth level architectural units in delta front in a complicated assemblage style. Assemble patterns of architectural units are divided into vertical stacking type, lateral joining type and isolated type. Through field measurement, architectural units are quantitative characterized. Result show that there is a linear relationship with a high relativity between thickness and width of distributary channel, distributary bar, estuarine dam and distal bar, which can provide a geological basis for modeling of subsurface architectural units.
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表 1 研究区三角洲前缘露头沉积单元及构型界面级次划分
Table 1 Sedimentary units and architecture boundary level division of delta front in the study area
构型界面级别 构型沉积单元 沉积成因及特征 界面特征 1 层系 流体底形迁移 无明显侵蚀 2 层系组 流体底形迁移 无明显侵蚀 3 大型底形内部的增生体,如分流河道、分流砂坝及潮汐砂坝内的侧积体,三角洲前缘河口坝的前积体 流体顺流加积或者侧向加积 微弱侵蚀面 4 大型沉积底形,如分流河道、分流砂坝、潮汐砂坝、单一河口坝、单一远砂坝、单一席状砂等 由多个增生体在垂向或侧向加积形成的沉积单元 具明显侵蚀,可见侵蚀面 5 单一河道复合沉积体、潮汐砂坝复合沉积体、河口坝复合体、远砂坝复合体、席状砂复合体 具侵蚀界面的连续沉积体,表现为垂向加积、侧向加积及填积形成的复合沉积单元 具侵蚀的基底,底部滞留沉积,重要的岩性及物性界面 表 2 柳林成家庄地区山西组露头剖面构型单元参数表
Table 2 Architecture unit parameters of Shanxi Formation in Chengjiazhuang, Liulin
剖面
编号分流河道 分流砂坝 潮汐砂坝 河口坝 远砂坝 席状砂 宽(m) 厚(m) 宽/
厚宽(m) 厚(m) 宽/
厚宽(m) 厚(m) 宽/
厚宽(m) 厚(m) 宽/
厚宽(m) 厚(m) 宽/
厚宽(m) 厚(m) 宽/
厚剖面1 35 6 5.8 10 1.5 6.7 24.5 5 4.9 9 1.2 7.5 剖面2 87 11 7.9 26 6 4.3 13 2 6.5 12 1.5 8.0 剖面3 28 1.1 25.5 28 0.8 35.0 13 0.2 65.0 30 1.3 23.1 21 0.6 35.0 15.7 0.3 52.3 26 0.9 28.9 23 0.7 32.9 27.5 0.4 68.8 26 0.7 37.1 16 0.3 53.3 30 1 30.0 23 0.5 46.0 21 0.4 52.5
其他
剖面36 5.5 6.5 19 6.0 3.2 12 1.6 7.5 15 0.8 18.8 26 0.5 52.0 74 7.3 10.1 14 1.6 8.8 10 1.2 8.3 22 1.1 20.0 21 0.3 70.0 51 3.5 14.6 12 1.4 8.6 17 0.5 34.0 34 6.0 5.7 22 3.8 5.8 32 1.5 21.3 17 1.2 14.2 61 5.5 11.1 -
陈安清, 陈洪德, 向芳, 等. 鄂尔多斯盆地东北部山西组—上石盒子组三角洲沉积及演化[J]. 地层学杂志, 2010, 34(1): 97-105 CHEN Anqing, CHEN Hongde, XIANG Fang, et al. Delta deposits in the Shanxi and Shangshihezi Formations in the Northeastern Ordos Basin[J]. Journal of Stratigraphy, 2010, 34(1): 97-105.
陈洪德, 李洁, 张成弓, 等. 鄂尔多斯盆地山西组沉积环境讨论及其地质启示[J]. 岩石学报, 2011, 27(8): 2213-2229 CHEN Hongde, LI Ji, ZHANG Chenggong, et al. Discussion of sedimentary environment and its geological enlightenment of Shanxi Formation in Ordos Basin[J]. Acta Petrologica Sinica, 2011, 27(8): 2213-2229.
封从军, 鲍志东, 代春明, 等. 三角洲前缘水下分流河道单砂体叠置机理及对剩余油的控制: 以扶余油田J19区块泉头组四段为例[J]. 石油与天然气地质, 2015, 36(1): 128-135 FENG Congjun, BAO Zhidong, DAI Chunming, et al. Superimposition patterns of underwater distributary channel sands in deltaic front and its control on remaining oil distribution: A case study from Klq4 in J19 block, Fuyu oilfield[J]. Oil&Gas geology, 2015, 36(1): 128-135.
蒋天昊, 宋方新, 邓宝康, 等. 鄂尔多斯盆地吴起油田长6油层组沉积微相特征及其对储层的控制[J]. 西北地质, 2020, 53(4): 130-139 JIANG Tianhao, SONG Fangxin, DENG Baokang, et al. Sedimentary microfacies of Chang 6 oil-bearing formation and its control on reservoir in Wuqi Oilfield, Ordos Basin[J]. Northwestern geology, 2020, 53(4): 130-139.
金振奎, 杨友星, 尚建林, 等. 辫状河砂体构型及定量参数研究—以阜康、柳林和延安地区辫状河露头为例[J]. 天然气地球科学, 2014, 25(3): 311-317 JIN Zhenkui, YANG Youxing, SHANG Jianlin, et al. Sandbody architecture and quantitative parameters of single channel sandbodies of Braided river: case from outcrops of braided river in Fukang, Liulin and Yanan Areas[J]. Natural gas geoscience, 2014, 25(3): 311-317.
李阳. 我国油藏地质开发研究进展[J]. 石油学报, 2007, 28(3): 75-79 LI Yang. Progress of research on reservoir development geology in China[J]. Acta Petrolei Sinica, 2007, 28(3): 75-79.
刘家铎, 田景春, 张翔, 等. 鄂尔多斯盆地北部塔巴庙地区山西组一段海相、过渡相沉积标志研究及环境分析[J]. 沉积学报, 2006, 24(1): 36-42 LIU Jiaduo, TIAN Jiangchun, ZHANG Xiang, et al. Depositional markers of marine transition facies and its evolution of member 1 of Shanxi formation Tabamiao area North Ordos Basin[J]. Acta Sedmentologica Sinica, 2006, 24(1): 36-42.
罗旭东, 韩东威, 张方贵, 等. 玛湖446井区克拉玛依组储层特征及有利区预测[J]. 西北地质, 2024, 57(5): 166−180. LUO Xudong, HAN Dongwei, ZHANG Fanggui, et al. Reservoir Characteristics and Favorable Areas of the Karamay Formation in the Mahu 446 Well District[J]. Northwestern Geology, 2024, 57(5): 166−180.
马晓军, 梁积伟, 李建星, 等. 鄂尔多斯盆地中西部中新生代构造抬升及演化[J]. 西北地质, 2019, 52(4): 127-136 doi: 10.3969/j.issn.1009-6248.2019.04.010 MA Xiaojun, LIANG Jiwei, LI Jianxing, et al. Meso-cenozoic tectonic uplift and evolution of central and western Ordos Basin[J]. Northwestern geology, 2019, 52(4): 127-136. doi: 10.3969/j.issn.1009-6248.2019.04.010
沈玉林, 郭海英, 李壮福, 等. 鄂尔多斯盆地东缘本溪组-太原组层序地层特征[J]. 地球学报, 2009, 30(2): 187-193 SHEN Yulin, GUO Haiying, LI Zhuangfu, et al. Sequence stratigraphy of Benxi-Taiyuan Formation in eastern Ordos Basin[J]. Acta Geoscientica Sinica, 2009, 30(2): 187-193.
孙宁亮, 钟建华, 倪良田, 等. 鄂尔多斯盆地南部上三叠统延长组物源分析及热演化[J]. 中国地质, 2019, 46(3): 537-556 doi: 10.12029/gc20190307 SUN Ningliang, ZHONG Jianhua, NI Liangtian, et al. Provenance analysis and thermal evolution of upper Triassic Yanchang formation in the southern Ordos Basin[J]. Geology in China, 2019, 46(3): 537-556. doi: 10.12029/gc20190307
孙天建, 穆龙新, 吴向红, 等. 砂质辫状河储层构型表征方法—以苏丹穆格莱特盆地Hegli油田为例[J]. 石油学报, 2014, 35(4): 715-724 SUN Tianjian, MU Longxin, WU Xianghong, et al. A quantitative method for architectural characterization of sandy braided-river reservoirs: taking Hegli oilfield of Muglad Basin in Sudan as an example[J]. Acta Petrolei Sinica, 2014, 35(4): 715-724.
田雯. 鄂尔多斯盆地东南部二叠系山西组沉积体系研究[D]. 西安: 西北大学, 2016, 1−94 TIAN Wen. Sedimentary system study of Permian Shanxi Formation in south-eastern of Ordos Basin[D]. Xi’an: Northwest University, 2016, 1−94.
王越, 陈世悦. 曲流河砂体构型及非均质性特征—以山西保德扒楼沟剖面二叠系曲流河砂体为例[J]. 石油勘探与开发, 2016, 43(2): 208-218 doi: 10.1016/S1876-3804(16)30024-6 WANG Yue, CHEN Shiyue. Meandering river sand body architecture and heterogeneity: A case study of Permian meandering river outcrop in Palougou, Baode, Shanxi province[J]. Petroleum Exploration and Development, 2016, 43(2): 208-218. doi: 10.1016/S1876-3804(16)30024-6
叶黎明, 齐天俊, 彭海燕. 鄂尔多斯盆地东部山西组海相沉积环境分析[J]. 沉积学报, 2008, 26(2): 202-210 YE Liming, QI Tianjun, PENG Haiyan. Depositional environment analysis of Shanxi Formation in Eastern Ordos Basin[J]. Acta Sedmentologica Sinica, 2008, 26(2): 202-210.
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 doi: 10.3321/j.issn:0253-2697.2007.04.020 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. doi: 10.3321/j.issn:0253-2697.2007.04.020
张昌民, 尹太举, 朱永进, 等. 浅水三角洲沉积模式[J]. 沉积学报, 2010, 28(5): 933-944 ZHANG Changmin, YIN Taiju, ZHU Yongjin, et al. Shallow-water deltas and models[J]. Acta Sedmentologica Sinica, 2010, 28(5): 933-944.
张敬霞, 郭海英, 沈玉林. 成家庄剖面本溪-太原组层序地层与元素地球化学特征分析[J]. 中国煤炭地质, 2011, 23(3): 1-4 ZHANG Jingxia, GUO Haiying, SHEN Yulin. Chengjiazhuang section Benxi-Taiyuan Formations sequence stratigraphy and geochemistry of element analysis in Liulin, Shanxi[J]. Coal Geology of China, 2011, 23(3): 1-4.
赵伦, 梁宏伟, 张祥忠, 等. 砂体构型特征与剩余油分布模式—以哈萨克斯坦图尔盖盆地Kumkol South油田为例[J]. 石油勘探与开发, 2016, 43(3): 433-441 ZHAO Lun, LIANG Hongwei, ZHANG Xiangzhong, et al. Relationship between sandstone architecture and remaining oil distribution pattern: A case of the Kumkol South oilfield in South Turgay Basin, Kazakstan[J]. Petroleum Exploration and Development, 2016, 43(3): 433-441.
朱卫红, 吴胜和, 尹志军. 辫状河三角洲露头构型—以塔里木盆地库车坳陷三叠系黄山街组为例[J]. 石油勘探与开发, 2016, 43(3): 1-8 ZHU Weihong, WU Shenghe, YIN Zhijun. Braided river delta outcrop architecture: A case studyof Triassic Huangshanjie Formation in Kuche depression, Tarim Basin, NW China[J]. Petroleum Exploration and Development, 2016, 43(3): 1-8.
Allen J R L. Studies in fluviatile sedimentation: bars, bar complexes and sandstone sheets (lower-sinuosity braided streams) in the Brownstones (L. Devonian), Welsh Borders[J]. Sedimentary Geology, 1983, 33(4): 237-293. doi: 10.1016/0037-0738(83)90076-3
Miall A D. Architectural elements analysis: A new method of facies analysis applied to fluvial deposits[J]. Earth Science Reviews, 1985, 22(4): 261-308. doi: 10.1016/0012-8252(85)90001-7
Miall A D. Architectural elements and bounding surfaces in fluvial deposits: anatomy of the Kayenta Formation (Lower Jurassic), Southwest Colorado[J]. Sedimentary Geology, 1988, 55(3-4): 233-262. doi: 10.1016/0037-0738(88)90133-9
Miall A D. The geology of fluvial deposits[M]. Springer Verlag Berlin Heidellberg, 1996: 75−178.