石油与天然气地质 ›› 2014, Vol. 35 ›› Issue (3): 342-349.doi: 10.11743/ogg20140307

• 油气地质 • 上一篇    下一篇

四川盆地龙潭组烃源岩全硫含量特征及其对沉积环境的响应

付小东1,2, 邱楠生1, 秦建中3, 滕格尔3, 刘文汇3, 王小芳2   

  1. 1. 中国石油大学 地球科学学院, 北京 102249;
    2. 中国石油 杭州地质研究院, 浙江 杭州 310023;
    3. 中国石化 石油勘探开发研究院 无锡石油地质研究所, 江苏 无锡 214151
  • 收稿日期:2013-08-10 修回日期:2014-05-19 出版日期:2014-06-08 发布日期:2014-07-11
  • 作者简介:付小东(1980- ),男,博士研究生,石油地质、油气地球化学。E-mail:fuxd_hz@petrochina.com.cn。
  • 基金资助:

    国家重点基础研究发展计划(“973”计划)(2012CB214801);石油化工联合基金项目(40839910)。

Total sulfur distribution of source rock of the Upper Permian Longtan Formation and its response to sedimentary environment in Sichuan Basin

Fu Xiaodong1,2, Qiu Nansheng1, Qin Jianzhong3, Tenger3, Liu Wenhui3, Wang Xiaofang2   

  1. 1. School of Geoscience, China University of Petroleum, Beijing 102249, China;
    2. Hangzhou Research Institute of Geology, PetroChina, Hangzhou, Zhejiang 310023, China;
    3. Wuxi Research Institute of Petroleum Geology, Exploration and Production Research Institute, SINOPEC, Wuxi, Jiangsu 214151, China
  • Received:2013-08-10 Revised:2014-05-19 Online:2014-06-08 Published:2014-07-11

摘要:

通过对四川盆地龙潭组烃源岩全硫含量系统分析,研究了龙潭组烃源岩硫含量分布特征和控制因素,以及全硫含量对沉积环境的响应和指示意义。龙潭组不同岩性烃源岩全硫含量差异明显,泥页岩全硫含量高,灰岩硫含量则很低。烃源岩全硫含量(TS)与其总有机碳含量(TOC)、黄铁矿含量、干酪根碳同位素之间具有较好的正相关性。龙潭组烃源岩全硫含量和TOC/TS值对其沉积环境具有明显的响应和指示意义。川中、川东南等地区海陆交互相环境下形成的龙潭组烃源岩硫含量极高,TOC/TS值低;川东北地区台内凹陷、深水陆棚等环境下形成的烃源岩硫含量相对较高,TOC/TS值较高;盆地边缘城口、南江、石柱等地区碳酸盐台地、浅水陆棚等环境下形成的低有机质丰度灰岩烃源岩全硫含量低,而TOC/TS值高。

关键词: 全硫含量, 沉积环境, 烃源岩, 龙潭组, 四川盆地

Abstract:

Based on the systematic analysis of Total Sulfur content(TS)of source rock from the Upper Permian Longtan Formation(LTF)in Sichuan Basin,this paper studied the distribution feature of TS,its controlling factors as well as its responses to and significance as a indicator for sedimentary environment.Shale source rock of LTF is rich in sulfur,but limestone is poor in sulfur.TS has positive correlations with TOC,pyrites content and δ13C value of kerogen respectively.The TS and TOC/TS value of source rock have distinct responses to and significance as indicators for the sedimentary environment. Source rocks of LTF in paralic facies in middle and southern Sichuan Basin has high TS and low TOC/TS value.Source rocks in intra-platform sag or deep-water shelf facies in northeastern Sichuan Basin has relatively higher TS and TOC/TS value.And limestone in carbonate platform or shallow-water carbonate shelf facies in Chengkou,Nanjiang,Shizhu areas located at the edge of Sichuan Basin has low TS and high TOC/TS value.

Key words: total sulfur, sedimentary environment, source rock, Longtan Formation, Sichuan Basin

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