研究论文

下扬子地区下寒武统黑色页岩地球化学特征

  • 朱庆杰 ,
  • 侯鹏飞 ,
  • 杨帅帅 ,
  • 郭海莹 ,
  • 马磊 ,
  • 张涛 ,
  • 任瑞
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  • 1. 常州大学石油工程学院, 常州213016;
    2. 中国石化江苏连云港石油分公司, 连云港222000;
    3. 滨州学院资源环境系, 滨州256600
朱庆杰,教授,研究方向为油气田地质开发,电子信箱:qjzhu@cczu.edu.cn

收稿日期: 2015-03-12

  修回日期: 2015-04-17

  网络出版日期: 2015-07-25

基金资助

中国-波兰政府间科技合作项目(2012-35-5);江苏省教育科学“十二五”规划项目(D/2013/01/130);江苏政府留学奖学金(JS-2013-326);常州大学科技项目(ZMF1102071)

Geochemical characteristics of black shale of the lower Cambrian in lower Yangtze area

  • ZHU Qingjie ,
  • HOU Pengfei ,
  • YANG Shuaishuai ,
  • GUO Haiying ,
  • MA Lei ,
  • ZHANG Tao ,
  • REN Rui
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  • 1. School of Petroleum Engineering, Changzhou University, Changzhou 213016, China;
    2. Sinopec Jiangsu Lianyungang Oil Company, Lianyungang 222000, China;
    3. Resources and Environment Department of Binzhou University, Binzhou 256600, China

Received date: 2015-03-12

  Revised date: 2015-04-17

  Online published: 2015-07-25

摘要

通过露头观测、样品采集、有机地化分析等方法,研究了下扬子地区下寒武统黑色页岩的地质特征与油气资源意义.研究表明,黑色页岩沉积厚度大,主要分布在皖南的石台—泾县—宁国、全椒、苏北的高邮—海安地区,厚度介于100~400 m;岩石矿物成分中石英含量较高,有利于页岩的压裂改造;有机碳含量主要分布在1.0%~4.0%,黑色页岩沉积厚度中心有机碳含量普遍大于2.0%;有机显微组成、干酪根碳同位素、Pr/Ph 比值和饱芳比表明,该页岩有机质类型为Ⅰ型,母质来源为低等浮游生物,具有较强生烃潜力;热演化程度较高,等效镜质体反射率主体分布在2.0%~4.0%,普遍处于高成熟—过成熟阶段.综合认为,该区黑色页岩沉积厚度大、有机碳含量较高、有机质类型好、热演化程度高,具备页岩气形成的地质条件,是中国南方页岩气有利勘探区块之一.

本文引用格式

朱庆杰 , 侯鹏飞 , 杨帅帅 , 郭海莹 , 马磊 , 张涛 , 任瑞 . 下扬子地区下寒武统黑色页岩地球化学特征[J]. 科技导报, 2015 , 33(13) : 17 -21 . DOI: 10.3981/j.issn.1000-7857.2015.13.002

Abstract

The geologic characteristics and their hydrocarbon implication of black shale of the lower Cambrian in lower Yangtze area are analyzed by outcrop observation, sampling and geochemical analysis. The following conclusions are drawn. The black shale of lower Cambrian in lower Yangtze area has great thickness between 100 to 400 meters, and is mainly distributed in Shitai, Jingxian, Ningguo, Quanjiao, Gaoyou and Haian. It has high content of quartz in the mineral composition in this set of black shale, which is good for fracturing. The content of organic carbon ranges from 1% to 4% in lower Yangtze area, and is greater than 2.0% at depositional thickness center. The analysis of microscopic organic composition, carbon isotope of kerogen, Pr/Ph and saturated HC/ aromatic HC indicate that the kerogen type is Ⅰ. The origin of parent materials is aquatic organisms with high potential for hydrocarbon generation. The vitrinite reflectance is in the range of 2.0%~4.0%, in the stage of maturity to over-maturity. The black shale of lower Cambrian in lower Yangtze area has great thickness, high content of organic carbon, good kerogen type and high thermal maturity, which suggests promising exploration prospects.

参考文献

[1] 郭念发, 刘德法, 尤效忠. 下扬子区古生界油气地质条件及勘探选区[J]. 石油勘探与开发, 1998, 25(1): 1-7. Guo Nianfa, Liu Defa, You Xiaozhong. Palaeozoic oil and gas geological conditions and exploration area screening in Lower Yangtze region[J]. China Petroleum Exploration, 1998, 25(1): 1-7.
[2] 张欣国. 扬子区寒武系沉积相分布及其特征[J]. 石油实验地质, 1993,15(4): 350-360. Zhang Xinguo. The distribution of sedimentary facies in the Cambrian system of the Yangtze area[J]. Experimental Petroleum Geology, 1993, 15 (4): 350-360.
[3] 文玲, 胡书毅, 田海芹, 等. 扬子地区寒武系烃源岩研究[J]. 西北地质, 2001, 34(2): 67-74. Wen Ling, Hu Shuyi, Tian Haiqin, et al. A study on hydrocarbon source rock of Cambrian in Yangtze area[J]. Northwestern Geology, 2001, 34(2): 67-74.
[4] 胡书毅, 马玉新, 田海芹, 等. 扬子地区寒武系油气藏地质条件[J]. 石 油大学学报: 自然科学版, 1999, 23(4): 20-25. Hu Shuyi, Ma Yunxin, Tian Haiqin, et al. Favourable conditions for oil and gas generation in the Cambrian of Yangzi area[J]. Journal of the University of Petroleum: Natural Science Edition, 1999, 23(4): 20-25.
[5] 陈安定, 黄金明, 杨芝文, 等. 皖南—浙西下古生界碳沥青成因及南方 海相“有效烃源岩”问题探讨[J]. 海相油气地质, 2004, 9(1): 77-83. Chen Anding, Huang Jinming, Yang Zhiwen, et al. Discussions on origin of carbonaceous asphalt in lower Paleozoic strata in southern Anhui and western Zhejiang and on marine efficiency source rocks in southern China[J]. Marine Origin Petroleum Geology, 2004, 9(1): 77-83.
[6] 沃玉进, 肖开华, 周雁, 等. 中国南方海相层系油气成藏组合类型与勘 探前景[J]. 石油与天然气地质, 2006, 27(1): 11-16. Wo Yujin, Xiao Kaihua, Zhou Yan, et al. Types of marine plays in southern China and exploration prospects[J]. Oil & Gas Geology, 2006, 27 (1): 11-16.
[7] 沃玉进, 周雁, 肖开华, 等. 中国南方海相层系埋藏史类型与生烃演化 模式[J]. 沉积与特提斯地质, 2007, 27(3): 94-100. Wo Yujin, Zhou Yan, Xiao Kaihua, et al. The burial history and models for hydrocarbon generation and evolution in the marine strata in southern China[J]. Sedimentary Geology and Tethyan Geology, 2007, 27(3): 94- 100.
[8] 沃玉进, 汪新伟, 袁玉松, 等. 中国南方海相层系油气保存研究的新探 索-”保存系统”的概念与研究方法[J]. 石油实验地质, 2011, 33(1): 66- 73, 86. Wo Yujin, Wang Xinwei, Yuan Yusong, et al. New explorations of petroleum preservation conditions in marine sequences, South China[J]. Petroleum Geology & Experiment, 2011, 33(1): 66-73, 86.
[9] 潘继平, 乔德武, 李世臻, 等. 下扬子地区古生界页岩气地质条件与勘 探前景[J]. 地质通报, 2011, 30(2): 337-343. Pan Jiping, Qiao Dewu, Li Shizhen, et al. Shale gas geological conditions and exploration prospect of the Paleozoic marine strata in Lower Yangtze area, China[J]. Geological Bulletin of China, 2011, 30(2): 337-343.
[10] 陈桂华, 祝彦贺, 徐强, 等. 页岩气成藏的四性特征及对下扬子地区 页岩气勘探的启示[J]. 中国石油勘探, 2012, 17(5): 63-70. Chen Guihua, Zhu Yanhe, Xu Qiang, et al. Four Characteristics of shale gas play and enlightenment to shale gas exploration in Lower Yangtze area[J]. China Petroleum Exploration, 2012, 17(5): 63-70.
[11] 刘小平, 潘继平, 刘东鹰, 等. 苏北地区下寒武统幕府山组页岩气勘 探前景[J]. 成都理工大学学报: 自然科学版, 2012, 39(2): 198 -205. Liu Xiaoping, Pan Jiping, Liu Dongying, et al. Shale gas exploration prospect of Lower Cambrian Mufushan formation in the northern Jiangsu[J]. Journal of Chengdu University of Technology: Science & Technology Edition, 2012, 39(2): 198-205.
[12] 黄保家, 施荣富, 赵幸滨, 等. 下扬子皖南地区古生界页岩气形成条 件及勘探潜力评价[J]. 煤炭学报, 2013, 38(5): 877-882. Huang Baojia, Shi Rongfu, Zhao Xingbin, et al. Geological conditions of Paleozoic shale gas formation and its exploration potential in the south Anhui of Lower Yangtze area[J]. Journal of China Coal Society, 2013, 38 (5): 877-882.
[13] 王阳, 陈洁, 胡琳, 等. 沉积环境对页岩气储层的控制作用-以中下扬 子区下寒武统筇竹寺组为例[J]. 煤炭学报, 2013, 38(5): 845-850. Wang Yang, Chen Jie, Hu Lin, et al. Sedimentary environment control on shale gas reservoir: A case study of lower Cambrian Qiongzhusi Formation in the middle Lower Yangtze area[J]. Journal of China Coal Society, 2013, 38(5): 845-850.
[14] Curtis J B. Fractured shale gas systems[J]. AAPG Bulletin, 2002, 86(11): 1921-1938.
[15] 陈安定. 海相”有效烃源岩”定义及丰度下限问题讨论[J]. 石油勘探 与开发, 2005, 32(2): 23-25. Chen Anding. Definition and abundance threshold of marine source rocks developed in south China[J]. China Petroleum Exploration, 2005, 32(2): 23-25.
[16] Bowker K A. Barnett shale gas production, Fort Worth Basin: Issues and discussion[J]. AAPG Bulletin, 2007, 91(4): 523-533.
[17] 李从玲. 近代海洋沉积物(层)中姥鲛烷/植烷比值及其地球化学意义[J]. 海洋地质与第四纪地质, 1990, 10(4): 77-88. Li Congling. Pristne/Phytane ratio in recent marine sediment (sedimentary layer) and its geochemical significance[J]. Marine Geology & Quaternary Geology, 1990, 10(4): 77-88.
[18] 李任伟, 卢家烂, 张淑坤, 等. 震旦纪和早寒武世黑色页岩有机碳同 位素组成[J]. 中国科学: D辑, 1999, 29(4): 351-357. Li Renwei, Lu Jianglan, Zhang Shukun et al. Organic carbon isotopic composition in Sinian and early Cambrian black shale[J]. Science in China: Series D, 1999, 29(4): 351-357.
[19] 付修根, 王剑, 汪正江, 等. 藏北羌塘盆地胜利河油页岩干酪根特征 及碳同位素指示意义[J]. 地球学报, 2009, 30(5): 643-650. Fu Xiugen, Wang Jian, Wang Zhengjiang, et al. Characteristics of kerogens and their carbon isotope implications for the Shengli River Oil shale in Qiangtang Basin, northern Tibet[J]. Acta Geoscientica Sinica, 2009, 30(5): 643-650.
[20] 梁狄刚, 郭彤楼, 陈建平, 等. 中国南方海相生烃成藏研究的若干新 进展(二): 南方四套区域性海相烃源岩的地球化学特征[J]. 海相油气 地质, 2009, 14(1): 1-15. Liang Digang, Guo Tonglou, Chen Jianping, et al. Geochemical characteristics of four suits of region marine source rocks, south China[J]. Marine Origin Petroleum Geology, 2009, 14(1): 1-15.
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