岩性油气藏 ›› 2021, Vol. 33 ›› Issue (1): 81–89.doi: 10.12108/yxyqc.20210108

• 油气地质 • 上一篇    下一篇

玛湖凹陷南斜坡断裂识别及其对油气成藏的控制作用

余兴, 尤新才, 白雨, 李鹏, 朱涛   

  1. 中国石油新疆油田分公司勘探开发研究院, 新疆 克拉玛依 834000
  • 收稿日期:2020-06-23 修回日期:2020-09-07 出版日期:2021-02-01 发布日期:2021-01-25
  • 第一作者:余兴(1988-),男,硕士,工程师,主要从事油气地质与勘探方面的研究工作。地址:(834000)新疆克拉玛依市准噶尔路29号勘探开发研究院南院北门。Email:674850493@qq.com。
  • 基金资助:
    国家科技重大专项“准噶尔盆地岩性地层油气藏富集规律与目标评价”（编号：2017ZX05001-004）资助

Identification of faults in the south slope of Mahu Sag and its control on hydrocarbon accumulation

YU Xing, YOU Xincai, BAI Yu, LI Peng, ZHU Tao   

  1. Research Institute of Exploration and Development, PetroChina Xinjiang Oilfield Company, Karamay 834000, Xinjiang, China
  • Received:2020-06-23 Revised:2020-09-07 Online:2021-02-01 Published:2021-01-25

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摘要： 近期，准噶尔盆地玛湖凹陷南斜坡（玛南斜坡）MH015井在侏罗系八道湾组获特高产工业油流，开拓了玛南斜坡区中浅层油气预探的新局面。为了进一步探讨玛湖斜坡断裂特征、断裂对油气藏的控制作用、油气富集规律及其勘探潜力，综合运用野外地质露头、测井资料、地震断裂识别技术，对研究区断裂形成期次、断裂空间组合和油气成藏模式等进行了全面分析。结果表明：玛南斜坡晚海西期—印支期逆断裂、印支期—燕山期的走滑断裂是油气运移的关键因素，该地区油气成藏具有“近烃源岩供烃、多期次断裂纵向立体输导、断层岩性综合控藏、立体含油”的特征，该研究成果为该地区下一步油气勘探部署指明了方向。

关键词: 断裂识别, 油气输导, 成藏潜力, 玛南斜坡, 准噶尔盆地

Abstract: Recently,extra-high industrial oil flow was obtained in Jurassic Badaowan Formation in well MH015 in the south slope of Mahu Sag of Junggar Basin,which has opened up a new prospect of medium and shallow oil and gas pre-exploration in this area. In order to further explore the characteristics of faults,the control of faults on reservoirs,oil and gas enrichment rules and exploration potential in the south slope of Mahu Sag,field geological outcrop,logging data and seismic fault identification technology were applied to comprehensively analyze the fault formation period,fault spatial combination and hydrocarbon accumulation model in the study area. The results show that:the reverse faults in the Late Hercynian-Indosinian and strike-slip faults in Indosinian-Yanshanian are the key factors of oil and gas migration in south slope of Mahu Sag. The hydrocarbon accumulation in this area has the characteristics of hydrocarbon supply from near source rocks,vertical three-dimensional transport of multistage faults,fault lithology controlling accumulation and three-dimensional oil-bearing. The research results point out the direction for the subsequent oil and gas exploration deployment in this area.

Key words: fault identification, hydrocarbon transport, accumulation potential, south slope of Mahu Sag, Junggar Basin

中图分类号: 

  • TE122.1
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