地球物理学进展 ›› 2018, Vol. 33 ›› Issue (6): 2416-2427.doi: 10.6038/pg2018BB0411

• 应用地球物理学Ⅰ(油气及金属矿产地球物理勘探) • 上一篇    下一篇

RES2DINV在江西清江盆地常规电测深数据反演中的应用

刘迁1,2,陈建国3,4,张焱孙5   

  1. 1. 中国地震局地震研究所(地震大地测量重点实验室),武汉 430071
    2. 湖北省地震局,武汉 430071
    3. 中国地质大学(武汉)资源学院,武汉 430074
    4. 中国地质大学地质过程与矿产资源国家重点实验室,武汉 430074
    5. 江西省地质矿产勘查开发局902地质大队,江西新余 338000
  • 收稿日期:2018-03-04 修回日期:2018-09-08 出版日期:2018-12-20 发布日期:2019-03-03
  • 作者简介:刘迁,男,1989年生,硕士,助理工程师,现主要从事地震监测、分析预报工作.(E-mail: qliu2013@163.com)
  • 基金资助:
    国家重点研发计划课题(2017YFC0601504);国土资源公益性行业专项“地质大数据技术研究与应用试点”(201511079-02)

Application of RES2DINV in the inversion of conventional electrical sounding data in Qingjiang basin, Jiangxi province

LIU Qian1,2,CHEN Jian-guo3,4,ZHANG Yan-sun5   

  1. 1. Key Laboratory of Earthquake Geodesy, Institute of Seismology, CEA, Wuhan 430071, China
    2. Hubei Earthquake Agency, Wuhan 430071, China
    3. Faculty of Earth Resource, China University of Geosciences, Wuhan 430074, China
    4. State Key Laboratory of Geological Processes and Mineral Resources, China University of Geosciences, Wuhan 430074, China
    5. No.902 Geological Party of Jiangxi Bureau of Geology and Minerals Exploration and Development, Jiangxi Xinyu 338000, China
  • Received:2018-03-04 Revised:2018-09-08 Online:2018-12-20 Published:2019-03-03

摘要:

自20世纪60年代起,清江盆地开展了大量常规电测深工作,积累了丰富的资料.如何充分利用这些历史电测深数据开展二次开发以精细化揭示盆地构造是近年地矿工作的重点.为此,本文尝试利用业界成熟的高密度电法反演软件Res2dinv来开展精细化反演工作,系统分析了其数据格式与常规电测深数据的异同,研究了常规电测深数据格式转换方法,并对研究区1:20万、1:5万对称四极电测深数据进行了格式转换.通过高密度电法反演软件Res2dinv,对清江盆地不同比例尺的电测深数据进行二维剖面反演及地质解译.结合研究区部分钻孔资料,推测形成于印支—燕山期的临江洋湖凹陷、南部断陷带区内尚可能保存有一定厚度的二迭系地层.根据油气评价的生、储、盖条件可知,中央坳陷带内的临江洋湖凹陷、太平街凹陷依然具有良好的海相生油条件,中新生界地层埋深较大、盖层较厚,临江洋湖深凹陷附近的次级构造如游村、兰溪街隆起、敬礼村构造则可作为良好的储油构造,具有一定的找油气前景,值得进行深入研究探讨.

关键词: 高密度电法, RES2DINV, 对称四极电测深, 清江盆地, 二维反演

Abstract:

Since the 1960s, a large number of conventional electrical sounding works had been carried out and an abundance of data had been accumulated in Qingjiang basin. How to make full use of these historical electrical sounding data to carry out secondary development to reveal basin tectonics was the focus of geological and mineral resources work in recent years. To this end, the paper tried to use the industry mature high density resistivity method software Res2dinv to carry out detailed inversion work, analysed the similarities and differences between the data format of Res2dinv and conventional electrical sounding data systematically and studied the conversion method of conventional sounding data format. Then, converted the format of the 1:200000 and 1:50000 symmetrical four-pole sounding data.The two-dimensional profile inversion and geological interpretation of the electrical sounding data of different scale in Qingjiang basin were carried out through high density resistivity method inversion software Res2dinv. Combined with the data of some drill holes in the research area, it was speculated that there may be a certain thickness Permian strata in Linjiang Yanghu depression and the southern fault zone formed in the Indosinian-Yanshan epoch. According to the evaluation of development, storage, cover condition for oil and gas, the Linjiang Yanghu and Taipingjie depression in the central depression belt still had good marine oil source condition, Mesozoic-Cenozoic strata buried deep and covered with the thick cap rocks. Therefore, the secondary structure near Linjiang Yanghu depression, such as Youjie,Lanxijie uplift, Jinlicun structure can be regarded as good oil storage structure, had certain prospect for oil and gas and was worth further research.

Key words: high density resistivity method, RES2DINV, symmetrical four-pole sounding, Qingjiang basin, two-dimensional inversion

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