Lithologic Reservoirs ›› 2024, Vol. 36 ›› Issue (3): 117-126.doi: 10.12108/yxyqc.20240311

• PETROLEUM EXPLORATION • Previous Articles    

Sedimentary model of fluvial fan of Permian He-8 member in Ordos Basin and its exploration significance

WANG Hongbo1, ZHANG Lei2, CAO Qian2, ZHANG Jianwu2, PAN Xing2   

  1. 1. PetroChina Research Institute of Petroleum Exploration & Development-Northwest, Lanzhou 730020, China;
    2. Research Institute of Exploration and Development, PetroChina Changqing Oilfield Company, Xi'an 710018, China
  • Received:2023-08-21 Revised:2023-09-20 Published:2024-04-30

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Abstract: Based on the analysis and laboratory data of field outcrops and drilling cores, combined with sourcesink system analysis, the paleoclimatic environment and sedimentary facies characteristics of the eighth member of Permian Shihezi Formation（He-8 member）in Ordos Basin were studied.The results show that:（1）The Sr/ Cu values of Permian He-8 member in Ordos Basin are mostly greater than 10, and the V/Cr values are mostly less than 2.0. The thickness difference of the strata is less than 30 m, and there is no obvious sudden change. The ancient sedimentary slope is 0.5°-1.0°, the paleotopography is open and flat without obvious slope breaks, and the sedimentary water is shallow. It is an event deposit dominated by flood transportation under the background of arid ancient climate and gentle paleotopography.（2）During the sedimentary period of He-8 member, there was no large catchment area in the basin, and the rivers in the sedimentary system did not enter the lake water body. Instead, they flowed out of the basin to the southeast or disappeared in inland arid areas. The entire basin was dominated by floodplain sedimentation, manifested as a sedimentation pattern of alternating distribution of rivers and floodplains, forming afluvial fan sedimentary model.（3）The lake water flows back and forth, with intermittent development in flood season and dry season. In flood season, the relay transport of multi-stage crevasses makes the coarse-grained sandstone extend to the lake basin for a long distance, while in dry season, thick muddy deposits can be used as regional caprocks, forming a good reservoir-cap assemblage with great exploration potential.

Key words: fluvial fan, arid climate, event deposit, floodplain, flood season, dry season, source-sink system, He 8 member, Permian, Ordos Basin

CLC Number: 

  • TE121.3
[1] 杨华,付金华,刘新社,等. 鄂尔多斯盆地上古生界致密气成藏条件与勘探开发[J]. 石油勘探与开发,2012,39(3):295-303. YANG Hua,FU Jinhua,LIU Xinshe,et al. Accumulation conditions and exploration and development of tight gas in the Upper Paleozoic of the Ordos Basin[J]. Petroleum Exploration and Development,2012,39(3):295-303.
[2] 杨西燕,沈昭国,方少仙,等. 鄂尔多斯盆地乌审旗气田中二叠统下石盒子组盒8段下亚段滩坝砂体沉积特征[J]. 古地理学报,2007,9(2):175-183. YANG Xiyan,SHEN Zhaoguo,FANG Shaoxian,et al. Sedimentary characteristics of beach and bar sand bodies in the lower submember of member 8 of Xiashihezi Formation of Middle Permian in Wushenqi gas field,Ordos Basin[J]. Journal of Palaeogeography,2007,9(2):175-183.
[3] 文华国,郑荣才,高红灿,等. 苏里格气田苏6井区下石盒子组盒8段沉积相特征[J]. 沉积学报,2007,25(1):90-98. WEN Huaguo,ZHENG Rongcai,GAO Hongcan,et al. Sedimentary facies of the 8th member of lower Shihezi Formation in Su6 area,Sulige gas field[J]. Acta Sedimentologica Sinica, 2007,25(1):90-98.
[4] 李志华,黄文辉. 辫状河三角洲岩相特征及沉积模式:以鄂尔多斯盆地苏南地区盒8段为例[J]. 岩性油气藏,2017,29(1):43-50. LI Zhihua,HUANG Wenhui. Lithofacies characteristics and sedimentary model of braided delta:A case study of He 8 member in the southern Sulige,Ordos Basin[J]. Lithologic Reservoirs, 2017,29(1):43-50.
[5] 李洁,陈洪德,侯中健,等. 鄂尔多斯盆地东北部下石盒子组盒8段辫状河三角洲沉积特征[J]. 沉积与特提斯地质,2008, 28(1):27-32. LI Jie,CHEN Hongde,HOU Zhongjian,et al. Sedimentary characteristics of the braided deltas in the eighth member of theLower Shihezi Formation in the northeastern part of the Ordos Basin[J]. Sedimentary Geology and Tethyan Geology,2008,28(1):27-32.
[6] 沈玉林,郭英海,李壮福. 鄂尔多斯盆地苏里格庙地区二叠系山西组及下石盒子组盒八段沉积相[J]. 古地理学报,2006,8(1):53-62. SHEN Yulin,GUO Yinghai,LI Zhuangfu. Sedimentary facies of the Shanxi Formation and member 8 of Xiashihezi Formation of Permian in Suligemiao area,Ordos Basin[J]. Journal of Palaeogeography,2006,8(1):53-62.
[7] 王超勇,陈孟晋,汪泽成,等. 鄂尔多斯盆地南部二叠系山西组及下石盒子组盒8段沉积相[J]. 古地理学报,2007,9(4):369-378. WANG Chaoyong,CHEN Mengjin,WANG Zecheng,et al. Sedimentary facies of the Shanxi Formation and member 8 of Xiashihezi Formation of Permian in southern Ordos Basin[J]. Journal of Palaeogeography,2007,9(4):369-378.
[8] 刘锐娥,肖红平,范立勇,等. 鄂尔多斯盆地二叠系"洪水成因型"辫状河三角洲沉积模式[J]. 石油学报,2013,34(增刊1):120-127. LIU Rui'e,XIAO Hongping,FAN Liyong,et al. A depositional mode of flood-induced braided river delta in Permian of Ordos Basin[J]. Acta Petrolei Sinica,2013,34(Suppl1):120-127.
[9] 肖红平,刘锐娥,张福东,等.鄂尔多斯盆地二叠系盒8段沉积模式重建及其勘探意义[J]. 石油勘探与开发,2019,46(2):268-280. XIAO Hongping,LIU Rui'e,ZHANG Fudong,et al. Sedimentary model reconstruction and exploration significance of Permian He 8 member in Ordos Basin,NW China[J]. Petroleum Exploration and Development,2019,46(2):268-280.
[10] 何自新.鄂尔多斯盆地演化与油气[M].北京:石油工业出版社,2003. HE Zixin. The evolution of Ordos Basin and its oil and gas[M]. Beijing:Petroleum Industry Press,2003.
[11] 翟咏荷,何登发,开百泽.鄂尔多斯盆地及邻区中-晚二叠世构造-沉积环境与原型盆地演化[J]. 岩性油气藏,2024,36, (1):32-44. ZHAI Yonghe,HE Dengfa,KAI Baize. Tectonic-depositional environment and prototype basin evolution of Middle-Late Permian in Ordos Basin and adjacent areas[J]. Lithologic Reservoirs,2024,36(1):32-44.
[12] 王世成,郭亚斌,杨智,等. 苏里格南部盒8 段沉积微相研究[J]. 岩性油气藏,2010,22(增刊1):31-36. WANG Shicheng,GUOYabin,YANG Zhi,et al. Study on sedimentary microfacies of the eighth member of Shihezi Formation in southern Sulige[J].Lithologic Reservoirs,2010,22(Suppl 1):31-36.
[13] 李森,朱如凯,崔景伟,等. 古环境与有机质富集控制因素研究:以鄂尔多斯盆地南缘长7 油层组为例[J]. 岩性油气藏, 2019,31(1):87-95.LI Shen,ZHU Rukai,CUI Jingwei,et al. Paleoenvironment and controlling factors of organic matter enrichment:A case of Chang 7 oil reservoir in southern margin of Ordos Basin[J]. Lithologic Reservoirs,2019,31(1):87-95.
[14] 罗锦昌,田继军,马静辉,等. 吉木萨尔凹陷吉页1井区二叠系芦草沟组沉积环境及有机质富集机理[J]. 岩性油气藏, 2022,34(5):73-85. LUO Jinchang,TIAN Jijun,MA Jinghui,et al. Sedimentary environment and organic matter enrichment mechanism of Permian Lucaogou Formation in Jiye-1 well area,Jimsar Sag[J]. Lithologic Reservoirs,2022,34(5):73-85.
[15] 张元福,戴鑫,王敏,等. 河流扇的概念、特征及意义[J]. 石油勘探与开发,2020,47(5):947-957. ZHANG Yuanfu,DAI Xin,WANG Min,et al. The concept, characteristics and significance of fluvial fans[J]. Petroleum Exploration and Development,2020,47(5):947-957.
[16] 刘宗堡,张云峰,刘云燕,等. 末端扇沉积体系研究现状及石油地质意义[J]. 中国矿业大学学报,2018,47(3):520-530. LIU Zongbao,ZHANG Yunfeng,LIU Yunyan,et al. Status quo of the terminal fan sedimentary system study and its petroleum geological significance[J]. Journal of China University of Mining & Technology,2018,47(3):520-530.
[17] 李相博,刘化清,邓秀芹,等. 干旱环境河流扇概念与鄂尔多斯盆地延长组"满盆砂"成因新解[J]. 沉积学报,2021,39(5):1208-1221. LI Xiangbo,LIU Huaqing,DENG Xiuqin,et al. The concept of fluvial fans in an arid environment:A new explanation of the origin of "sand-filled basins"in the Yanchang Formation,Ordos Basin[J]. Acta Sedimentologica Sinica,2021,39(5):1208-1221.
[18] 肖建新,孙粉锦,何乃祥,等. 鄂尔多斯盆地二叠系山西组及下石盒子组8段南北物源沉积汇水区与古地理[J]. 古地理学报,2008,10(4):341-354. XIAO Jianxin,SUN Fenjin,HE Naixiang,et al. Permian Shanxi Formation and member 8 of Xiashihezi Formation in Ordos Basin:Palaeogeography and catchment area for sediments derived from north and south provenances[J]. Journal of Palaeogeography,2008,10(4):341-354.
[19] 王卫红,田景春,张锦泉. 鄂尔多斯盆地二叠系盒8段沉积特征再研究[J]. 成都理工大学学报(自然科学版),2016,43(2):224-232. WANG Weihong,TIAN Jingchun,ZHANG Jinquan. Research on sedimentary environment of the member8 of Middile Permian Xiashihezi Formation in Ordos Basin,China[J]. Journal of Chengdu University of Technology (Science & Technology Edition),2016,43(2):224-232.
[20] 田景春,吴琦,王峰,等. 鄂尔多斯盆地下石盒子组盒8段储集砂体发育控制因素及沉积模式研究[J]. 岩石学报,2011, 27(8):2403-2412. TIAN Jingchun,WU Qi,WANG Feng,et al. Research on development factors and the deposition model of large area reservoir sandstones of He 8 section of Xiashihezi Formation of Permian in Ordos Basin[J].Acta Petrologica Sinica,2011,27(8):2403-2412.
[21] 于兴河,王德发,郑浚茂. 华北地区二叠系岩相组合类型、剖面特点及沉积体系[J]. 沉积学报,1992,11(1):27-35. YU Xinghe,WANG Defa,ZHENG Junmao. Lithofacies association types or sequences and depositional system of Permian sandstones in north China[J]. Acta Sedimentologica Sinica, 1992,11(1):27-35.
[22] 王德发,郑竣茂,邓宏文. 华北石炭-二叠系古地理沉积环境的初步分析[J]. 地球科学——武汉地质学院学报,1986,11(3):267-272. WANG Defa,ZHENG Junmao,DENG Hongwen. A preliminary analysis of paleogeographic environments in CarboniferousPermian system in northern China[J]. Earth Science-Journal of Wuhan College of Geology,1986,11(3):267-272.
[23] 陈世悦,刘焕杰. 华北地台东部石炭-二叠纪岩相古地理特征[J]. 中国区域地质,1997,16(4):379-386. CHEN Shiyue,LIU Huanjie. Carboniferous-Permian lithofacies and paleogeography in the eastern part of the north China platform[J]. Regional Geology of China,1997,16(4):379-386.
[24] 张昌民,胡威,朱锐,等. 分支河流体系的概念及其对油气勘探开发的意义[J]. 岩性油气藏,2017,29(3):1-9. ZHANG Changmin,HU Wei,ZHU Rui,et al. Concept of distributive fluvial system and its significance to oil and gas exploration and development[J]. Lithologic Reservoirs,2017,29(3):1-9.
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