Relationship between sedimentary facies and source rocks of Permian strata in Huainan coalfield
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摘要: 在对淮南地区二叠系岩性、矿物和生物化石进行观测研究以及相关地球化学参数测试的基础上，对淮南地区这一时期的沉积相演化特征及其与烃源岩之间关系进行分析。结果表明：淮南地区早、中二叠世时期海水震荡性后退，总体以水下沉积为主，大致可划分为2种沉积亚相：山西组的三角洲沉积和下石盒子组的水下分流河道沉积，又可以进一步细分为前三角洲、泥炭沼泽、分流河道、决口扇、河漫滩等微相，泥页岩在前三角洲和河漫滩相最发育。岩性和显微组分的组成受沉积微环境变化的控制作用明显，“（腐泥组+壳质组）/∑显微组分”以大于等于70%为主，利于生气；有机碳含量则受沉积亚相和沉积微环境的共同控制，山西组泥页岩中有机碳平均质量分数约2.78%，明显高于下石盒子组泥页岩中的1.11%。综合考虑泥页岩累计厚度、有机碳含量及有机质的显微组成等因素认为，研究区山西组和下石盒子组都可作为页岩气的有利勘探层位，尤以“潘集镇-潘集区-泥河镇-平圩镇”这一带最为有利。Abstract: The relationship between sedimentary facies evolution characteristics and hydrocarbon source rocks was analyzed on the basis of observational related test of the geochemical parameters, lithology, minerals and fossils. Seawater retreated in oscillation during Early and Middle Permian Periods in Huainan area, forming mainly underwater deposits. Permian strata in Huainan area can be roughly divided into two subfacies:underwater delta deposits in Shanxi Formation and distributary channel deposits in Lower Shihezi Formation. It can be further broken down into:peat swamp, distributary channel, crevasse splay, flood plain, tidal flat and lagoon microfacies. Among them, shale and coal seam were most generated in former delta and floodplain microfacies. Lithological and microstructure components were significantly controlled by micro environmental change, (exinite plus sapropelinite)/∑macerals is generally greater than 70%, conducive to generation hydrocarbon; organic carbon content jointly controlled by sedimentary subfacies and sedimentary role of microenvironment, organic carbon content of about 2.78 percent on average in the shale of Shanxi Formation was significantly more than that in the shale of Lower Shihezi Formation(about 1.11%), but under the same conditions the organic matter of Lower Shihezi shale may be more conducive to generation hydrocarbon. Considering the factors such as the cumulative thickness of shale, organic carbon content and composition of organic matter, in this region the shale of Shanxi and Lower Shihezi Formation can be used as favorable shale gas exploration layers, in particular the "Panji Town-Panji District-Nihe Town-Pingwei Town" is the most favorable area.
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Keywords:
- Huainan coalfield /
- mud shale /
- microfacies /
- organic matter /
- favorable exploration area
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[1] 黄键良,牛欢,邓军. 淮南地区煤层气地质特征及勘探开发前景[J]. 中国科技信息,2009(1):21-24. HUANG Jianliang,NIU Huan,DENG Jun. CBM geological characteristics in Huainan area and its exploration development prospect[J]. China Science and Technology Information,2009(1):21-24.
[2] 康玉柱. 中国非常规泥页岩油气藏特征及勘探前景展望[J]. 天然气工业,2012,32(4):1-5. KANG Yuzhu. Characteristics and exploration prospect of unconventional shale gas reservoirs in China[J]. Natural Gas Industry,2012,32(4):1-5.
[3] 范翔,刘桂建,孙若愚,等. 淮南二叠纪含煤地层泥质岩地球化学特征及其地质意义[J]. 地学前缘,2015,22(4):299-311. FAN Xiang,LIU Guijian,SUN Ruoyu,et al. Geochemical characteristics of argillaceous rocks in Permian coal-bearing strata in Huainan and their geological implications[J]. Earth Science Frontiers,2015,22(4):299-311.
[4] 高德,平文文,胡宝林,等燚. 淮南煤田山西组泥页岩微量元素沉积地球化学特征及其意义[J]. 煤田地质与勘探,2017, 45(2):14-21. GAO Deyi,PING Wenwen,HU Baolin,et al. Sedimentary-geochemistry characteristics of trace elements of mud shale of Shanxi Formation in Huainan coalfield and its significance[J]. Coal Geology & Exploration,2017,45(2):14-21.
[5] 兰昌益. 两淮煤田石炭-二叠纪含煤岩系沉积特征及沉积环境[J]. 淮南矿业学院报,1989(3):9-24. LAN Changyi. Sedimentary characteristics and environments of Carboniferous-Permian coal-bearing rock formations in Huainan-Huaibei coalfields[J]. Journal of Huainan Mining Institute,1989(3):9-24.
[6] 李育,王岳,张成琦,等. 干旱区内陆河流域中游地区全新世沉积相变与环境变化-以石羊河流域为例[J]. 地理研究, 2014,30(10):1866-1880. LI Yu,WANG Yue,ZHANG Chengqi,et al. Changes of sedimentary facies and Holocene environments in the middle reaches of inland rivers,arid China:A case study of the Shiyang river[J]. Geographical Research,2014,30(10):1866-1880.
[7] 陈敬安,万国江,张峰,等. 不同时间尺度下的湖泊沉积物环境记录-以沉积物粒度为例[J]. 中国科学(地球科学),2003, 33(6):563-568. CHEN Jing'an,WAN Guojiang,ZHANG Feng,et al. Lakes sediments environmental record in different time scales-case in sediment grain size[J]. Science in China(Series D),2003,33(6):563-568.
[8] 施雅风,于革. 40~30 ka B.P.中国暖湿气候和海侵的特征与成因探讨[J]. 第四纪研究,2003,23(1):1-11. SHI Yafeng,YU Ge. Warm-humid climate and transgressions during 40~30 ka B.P. and their potential mechanisms[J]. Quaternary Sciences,2003,23(1):1-11.
[9] 杨守山. 淮南煤田颖凤区山西组沉积环境[J]. 中国煤田地质, 1992,4(2):6-9. YANG Shoushan. The sedimentary environment of Shanxi Formation of Yingfeng district in Huainan coalfield[J]. Coal Geology of China,1992,4(2):6-9.
[10] 朱善金. 淮南煤田新集井田二叠纪第I、Ⅱ含煤段沉积环境初步分析[J]. 淮南矿业学院学报,1989(2):13-20. ZHU Shanjin. A preliminary analysis of sedimentary environments of coal-bearing members I and Ⅱ of the Permain Measures in Xinji coal prospect of Huainan coalfield[J]. Journal of Huainan Mining Institute,1989(2):13-20.
[11] 冯起,李振山,陈广庭. 塔里木河中游地区全新世沉积物的粒度特征及意义[J]. 沉积学报,1996,14(增刊1):227-233. FENG Qi,LI Zhenshan,CHEN Guangting. Grain size characteristics of sedimentary and the climatic change in middle of Tarim river[J]. Acta Sedimentologica Sinica,1996,14(S1):227-233.
[12] 赵澄林,朱筱敏. 沉积岩石学[M]. 北京:石油工业出版社, 2001. [13] 冯增昭. 中国沉积学[M]. 北京:石油工业出版社,2013. [14] 谢长仑,胡宝林,徐宏杰,等. 淮南煤田石炭-二叠系泥页岩层系分布与沉积环境分析[J]. 中国煤炭地质,2015,27(5):6-11. XIE Changlun,HU Baolin,XU Hongjie,et al. Permo-Carboniferous argillutite measures distribution and sedimentary environment analysis in Huainan coalfield[J]. Coal Geology of China,2015,27(5):6-11.
[15] 李守军,田臣龙,徐凤琳,等. 山东二叠系石盒子组孢粉特征及古气候意义[J]. 地质评论,2014,60(4):765-770. LI Shoujun,TIAN Chenlong,XU Fenglin,et al. Characteristics of sporopollen and paleoclimate of the Permian Shihezi Formation in Shandong Province[J]. Geological Review,2014,60(4):765-770.
[16] 张泓,沈光隆,何宗莲. 华北板块晚古生代古气候变化对聚煤作用的控制[J]. 地质学报,1999,73(2):131-139. ZHANG Hong,SHEN Guanglong,HE Zonglian. Control of palaeoclimatic change on Late Palaeozoic coal accumulation of the North China plate[J]. Acta Geologica Sinica,1999,73(2):131-139.
[17] 李贵红. 筠连煤田晚二叠世煤系页岩储层初步评价[J]. 煤炭科学技术,2015,43(10):127-132. LI Guihong. Preliminary assessment for shale reservoir of Late Permian coal measures in Junlian coalfield[J]. Coal Science and Technology,2015,43(10):127-132.
[18] 张小龙,李艳芳,吕海刚,等. 四川盆地志留系龙马溪组有机质特征与沉积环境的关系[J]. 煤炭学报,2013,38(5):851-856. ZHANG Xiaolong, LI Yanfang, LYU Haigang, et al. Relationship between organic matter characteristics and depositional envionment in the Silurian Longmaxi Formation in Sichuan basin[J]. Jounal of China Coal Society,2013,38(5):851-856.
[19] 许怀先,陈丽华,万玉金,等. 石油地质实验测试技术与应用[M]. 北京:石油工业出版社,2001:63-66 [20] 陈建平,赵长毅,何忠华. 煤系有机质生烃潜力评价标准探讨[J]. 石油勘探与开发,1997,24(1):1-5. CHEN Jianping,ZHAO Changyi,HE Zhonghua. Criteria for evaluating the hydrocarbon generating potential of organic matter in coal measures[J]. Petroleum Exploration and Development, 1997,24(1):1-5.
[21] 夏新宇,戴金星. 碳酸盐岩生烃指标及生烃量评价的新认识[J]. 石油学报,2000,21(4):36-41. XIA Xinyu,DAI Jinxing. A critical review on the evaluation of hydrocarbon potential of marine carbonate rocks in China[J]. Acta Petrolei Sinica,2000,21(4):36-41.
[22] 曹庆英. 透射光下干酷根显微组分鉴定及类型划分[J]. 石油勘探与开发,1985(5):14-23. CAO Qingying. Identification of microcomponents and types of kerogen under transmitted light[J]. Petroleum Exploration and Development,1985(5):14-23.
[23] 李贤庆,钟宁宁,王铁冠,等. 东海西湖凹陷早第三纪烃源岩生烃组分剖析[J]. 煤田地质与勘探,1995,23(6):24-31. LI Xianqing,ZHONG Ningning,WANG Tieguan,et al. The study on hydrocarbon-generating macerals of Lower Tertiary source rocks in Xihu sag,East China Sea basin[J]. Coal Geology & Exploration,1995,23(6):24-31.
[24] 马安来,钟宁宁,李贤庆,等. 新疆三塘湖盆地侏罗系烃源岩的显微组分组成及生烃组分剖析[J]. 江汉石油学院学报, 1997,19(4):20-26. MA Anlai,ZHONG Ningning,LI Xianqing,et al. Composition and hydrocarbon-generation macerals of Jurassic source rocks in Santanghu basin,Xinjiang Province[J]. Journal of Oil and Gas Technology,1997,19(4):20-26.
[25] 李贤庆,马安来,熊波,等. 新疆三塘湖盆地侏罗系烃源岩显微组分剖析及其生烃模式[J]. 西南石油学院学报,1997, 19(4):31-35. LI Xianqing,MA Anlai,XIONG Bo,et al. Microscopic component analysis of source rocks and the hydrocarbon generation model in Jurassic,Santanghu basin,Xinjiang[J]. Journal of Southwest Petroleum Institute,1997,19(4):31-35.
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