岩性油气藏 ›› 2017, Vol. 29 ›› Issue (1): 1–10.doi: 10.3969/j.issn.1673-8926.2017.01.001

• 油气地质 •    下一篇

筠连地区上二叠统宣威组沉积相及聚煤控制因素

张廷山1,2, 何映颉1,2, 伍坤宇1,3, 林丹4, 张朝5   

  1. 1. 油气藏地质及开发工程国家重点实验室·西南石油大学, 成都 610500;
    2. 西南石油大学 地球科学与技术学院, 成都 610500;
    3. 中国石油青海油田分公司 勘探开发研究院, 甘肃 敦煌 736202;
    4. 页岩气评价与开采四川省重点实验室, 成都 610091;
    5. 中国石油浙江油田分公司, 杭州 310023
  • 收稿日期:2016-10-25 修回日期:2016-12-18 出版日期:2017-01-21 发布日期:2017-01-21
  • 第一作者:张廷山(1961-),男,博士,教授,博士生导师,主要从事沉积环境与沉积相、古生态与生物礁、储层沉积学、非常规油气资源评价等方面的教学与研究工作。地址:(610500)四川省成都市新都区新都大道8号西南石油大学地球科学与技术学院。Email:zts_3@126.com。
  • 基金资助:
    国家自然科学基金项目“川东鄂西地区晚二叠世生物礁系统演化环境生态动力学研究”（编号:41272135）和国家自然科学基金青年基金项目“甲烷在页岩气储层微纳米孔隙系统中运移的动力学机理研究”（编号:41302123）联合资助

Sedimentary facies and controlling factors of coal accumulation of the Upper Permian Xuanwei Formation in Junlian area

ZHANG Tingshan1,2, HE Yingjie1,2, WU Kunyu1,3, LIN Dan4, ZHANG Zhao5   

  1. 1. State Key Laboratory of Oil & Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu 610500, China;
    2. School of Geoscience and Technology, Southwest Petroleum University, Chengdu 610500, China;
    3. Research Institute of Exploration and Development, PetroChina Qinghai Oilfield Company, Dunhuang 736202, Gansu, China;
    4. Sichuan Key Laboratory of Shale Gas Evaluation and Exploitation, Chengdu 610091, China;
    5. PetroChina Zhejiang Oilfield Company, Hangzhou 310023, China
  • Received:2016-10-25 Revised:2016-12-18 Online:2017-01-21 Published:2017-01-21

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摘要： 近年来，四川盆地南缘筠连地区上二叠统宣威组作为煤层气勘探开发潜力区带引起了业内广泛关注。为了研究宣威组煤层分布及演化规律，依据钻、测井及区域地质资料，运用沉积学、区域地质学的理论和方法，进行了单井沉积相划分和连井沉积相对比，绘制出沉积相平面分布图，并探讨了区内聚煤作用的主控因素。结果表明，宣威组广泛发育曲流河相、潮坪相和少量混积台地相沉积，煤层主要发育于潮上带沼泽微相带中。总体上，温暖潮湿的古气候为植物的生长发育创造了条件，构造古地理与沉积古环境控制了煤层的宏观分布与发育程度。

Abstract: The Upper Permian Xuanwei Formation in Junlian area has attracted more attention,which is considered as a potential coalbed methane development zone in the southern margin of the Sichuan Basin. In order to research the distribution and evolution of the coal beds in the Upper Permian Xuanwei Formation,based on the data of drilling,logging and regional geology,combined with the theories and methods of sedimentology and regional geology,this paper divided the sedimentary facies of single well,compared the well- tie section,compiled the map of sedimentary facies,and discussed the controlling factors of coal accumulation. The results show that the Upper Permian Xuanwei Formation mainly developed meandering river facies and tidal flat facies,and a small amount of diamictic platform facies. The coal beds were mainly developed in the swamp microfacies. The warm and humid palaeo-environment prepared good condition for plants blooming. The distribution and development of coal beds in the Upper Permian Xuanwei formation are controlled by tectonic-palaeogeography and palaeoenvironment. This research is significant for understanding coupling relationship of the depositional environment and coal accumulating effect,and favorable for coalbed methane exploration in Junlian area.

中图分类号: 

  • P618.11
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