HUANG Zhengqing, ZHOU Daorong, LI Jianqing, WU Tong, XU Feifei. Shale gas accumulation conditions and resource potential evaluation of the Cambrian in the Lower Yangtze area[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2019, 41(1): 94-98. doi: 10.11781/sysydz201901094
Citation: HUANG Zhengqing, ZHOU Daorong, LI Jianqing, WU Tong, XU Feifei. Shale gas accumulation conditions and resource potential evaluation of the Cambrian in the Lower Yangtze area[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2019, 41(1): 94-98. doi: 10.11781/sysydz201901094

Shale gas accumulation conditions and resource potential evaluation of the Cambrian in the Lower Yangtze area

doi: 10.11781/sysydz201901094
  • Received Date: 2018-09-19
  • Rev Recd Date: 2018-12-11
  • Publish Date: 2019-01-28
  • The Cambrian in the Lower Yangtze region is a marine sedimentary stratum with an area of 130×103km2. The Lower Cambrian Hetang Formation (Makufushan Formation) comprisesblack carbonaceous mudstones with a thickness of 276 m and an organic carbon content (TOC) rangingfrom 0.25%-23.52%, averaging 4.54%. The organic matter is mainly of type I, showing favorable conditions for shale gas accumulation. The Lower Cambrian stratum has experienced tectonic movements and transformation duringmagmatic activityduring the Caledonian, Hercynian, Indosinian, Yanshanian and Himalayan periods, and some individual sections have become part of metamorphic rocks. Therefore, the thermal evolution degree of carbonaceous mudstones is high in the Hetang Formation in many areas of the Lower Yangtze region. The maximum vitrinite reflectance (Ro) is 6.32%, indicating for an over mature stage. At the same time, due to large overburden and structural influence, the burial depth of the Hetang Formation also varies. The thickness, burial depth, TOC content and Ro of the carbonaceous mudstones in the Hetang Formation were applied to construct ageological survey and potential evaluation of shale gas in the Cambrian in the Lower Yangtze region. There are mainly three exploration targets including the region from the Shangrao area in the Jiangxi Province to the Tonglu area in the Zhejiang Province, the Yangzhou area in the Jiangsu Province and the Quanjiao area in the Anhui Province, with an estimated resource of 28894×109m3.

     

  • loading
  • [1]
    夏在连,花彩霞,刘计勇,等.下扬子区下古生界油气有利勘探区带探讨[J].海洋地质与第四纪地质,2018,38(3):66-74.

    XIA Zailian,HUA Caixia,LIU Jiyong,et al.Favorable Lower Paleozoic exploration targets in the Lower Yangtze region[J].Marine Geology & Quaternary Geology,2018,38(3):66-74.
    [2]
    徐曦,朱晓颖,单希鹏,等.下扬子区中新生代沿江盆地群的盆地结构与沉积特征[J].石油实验地质,2018,40(3):303-314.

    XU Xi,ZHU Xiaoying,SHAN Xipeng,et al.Structure and sedimentary characteristics of the Meso-Cenozoic basin group along the Yangtze River in the Lower Yangtze region[J].Petroleum Geology & Experiment,2018,40(3):303-314.
    [3]
    徐楠,徐曦,周波,等.下扬子区新生代构造变形物理模拟及其主控因素[J].石油实验地质, 2017,39(3):409-416.

    XU Nan,XU Xi,ZHOU Bo,et al.Physical simulation of Cenozoic tectonic deformation in the Lower Yangtze region and its main controlling factors[J].Petroleum Geology & Experiment,2017,39(3):409-416.
    [4]
    袁勇,陈建文,梁杰,等.海陆对比看南黄海海相中-古生界的生储盖组合特征[J].石油实验地质,2017,39(2):195-202.

    YUAN Yong,CHEN Jianwen,LIANG Jie,et al.Source-reservoir-seal assemblage of marine Mesozoic-Paleozoic in South Yellow Sea Basin by land-ocean comparison[J].Petroleum Geology & Experiment,2017,39(2):195-202.
    [5]
    赵立鹏,王冉,钟方军,等.赣东北重点泥页岩层系地球化学特征分析[J].特种油气藏,2017,24(1):64-69.

    ZHAO Lipeng,WANG Ran,ZHONG Fangjun,et al.Geochemistry features of key mud shale formations in Northeast Jiangxi Province[J].Special Oil & Gas Reservoirs,2017,24(1):64-69.
    [6]
    曹涛涛,邓模,罗厚勇,等.下扬子地区中上二叠统页岩有机孔发育特征[J].石油实验地质,2018,40(3):315-322.

    CAO Taotao,DENG Mo,LUO Houyong,et al.Characteristics of organic pores in Middle and Upper Permian shale in the Lower Yangtze region[J].Petroleum Geology & Experiment,2018,40(3):315-322.
    [7]
    安徽省地质矿产局区域地质调查队.安徽地层志:前寒武系分册[M].合肥:安徽科学技术出版社,1985. Regional Geological Survey Team of Anhui Provincial Bureau of Geology and Mineral Resources.Stratigraphic records of Cambrian in Anhui[M].Hefei:Anhui Science and Technology Press,1985.
    [8]
    张飞燕.下扬子地区下寒武统页岩特征及有利勘探方向探讨[J].中国煤炭地质,2017,29(1):25-30.

    ZHANG Feiyan.Discussion on Lower Cambrian shale features and favorable exploration orientation in Lower Yangtze area[J].Coal Geology of China,2017,29(1):25-30.
    [9]
    吴浩.安徽省扬子地层区古生界页岩气地质条件与勘探前景[D].南京:南京大学,2014. WU Hao.The Paleozoic shale gas geological condition and prospect in Yangzi stratum area,Anhui Province[D].Nanjing:Nanjing University,2014.
    [10]
    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,China[J].Journal of Chengdu University of Technology(Science & Technology Edition),2012,39(2):198-205.
  • 加载中

Catalog

    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索

    Article Metrics

    Article views (1358) PDF downloads(160) Cited by()
    Proportional views
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return