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现代地质 ›› 2020, Vol. 34 ›› Issue (02): 281-288.DOI: 10.19657/j.geoscience.1000-8527.2019.017

• 煤田地质学 • 上一篇    下一篇

准南煤田硫磺沟矿区向斜-承压式煤层气富集模式

高北斗1(), 王海超1,2(), 田继军1,2, 韩旭1, 冯烁1,2, 王迪1, 张振东3   

  1. 1.新疆大学 地质与矿业工程学院,新疆 乌鲁木齐 830047
    2.新疆煤层气工程技术研究中心,新疆 乌鲁木齐 830047
    3.辽宁红阳燃气开发有限公司,辽宁 沈阳 110136
  • 收稿日期:2018-11-05 修回日期:2019-10-28 出版日期:2020-05-25 发布日期:2020-05-25
  • 通讯作者: 王海超
  • 作者简介:王海超,男,副教授,硕士研究生导师,1988年出生,地质资源与地质工程专业,主要从事煤系非常规天然气地质教学与研究工作。Email: wangxiaoshi2111@163.com
    高北斗,男,硕士研究生,1991年出生,地质资源与地质工程专业,主要从事煤田地质及煤层气地质研究。Email: 18690270761@163.com
  • 基金资助:
    新疆维吾尔自治区自然科学基金项目(2018D01C050)

Syncline-confined-water Model of Coalbed Methane Enrichment Area in Liuhuanggou Mining Area, Southern Junggar Coalfield

GAO Beidou1(), WANG Haichao1,2(), TIAN Jijun1,2, HAN Xu1, FENG Shuo1,2, WANG Di1, ZHANG Zhendong3   

  1. 1. Institute of Geology and Mining Engineering, Xinjiang University, Urumqi,Xinjiang 830047,China
    2. CBM Engineering Technology Research Center,Urumqi,Xinjiang 830047,China
    3. Liaoning Hongyang Gas Development Co., Ltd., Shenyang, Liaoning 110136,China
  • Received:2018-11-05 Revised:2019-10-28 Online:2020-05-25 Published:2020-05-25
  • Contact: WANG Haichao

摘要:

通过系统收集、分析准南煤田硫磺沟矿区最新的勘探资料和生产资料,对影响硫磺沟矿区煤层气富集的煤阶、构造、水文、盖层等诸多因素进行研究。结果表明:多期构造活动形成了阿克德向斜及其北翼逆断层,三角洲平原沼泽控制了厚煤层发育,扇三角洲相、河流相、湖泊相控制了封盖层,火烧区影响下的弱径流地下水动力系统封堵了煤层气。上述因素共同控制了硫磺沟矿区向斜-承压煤层气富集模式。具有深埋藏、高矿化度地下水及封闭盖层条件的阿克德向斜轴部和临近轴部的两翼地区为煤层气有利富集区。

关键词: 煤层气, 向斜地下水, 富集模式, 硫磺沟矿区

Abstract:

Through systematic collection and analysis of the latest exploration data and existing coal mine production data, controlling factors on the coal rank, structure, hydrology, and caprock enrichment of coalbed methane in Liuhuanggou mining area, Southern Junggar coalfield are studied. The results show that the multiphase tectonic activity might cause the formation of the Akede syncline and the reverse fault on its northern limb. The delta plain swamp controls the development of thick coal seams, and the fan delta, fluvial and lacustrine facies control the lower caprock layer, and the burning-zone weak runoff groundwater dynamic system blocks the coalbed methane. These factors jointly control the enrichment model of the syncline-confined coalbed methane in Liuhuanggou area. It is considered that the Akede synclinal axis, featured by its deep burial depth, high-salinity groundwater and closed caprock conditions, is the most favorable enrichment zone for coalbed methane.

Key words: coalbed methane, groundwater in syncline, enrichment model, Liuhuanggou mining area

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