[1]陈 跃,马东民,方世跃,等.构造和水文地质条件耦合作用下煤层气富集高产模式[J].西安科技大学学报,2019,(04):94-105.[doi:10.13800/j.cnki.xakjdxxb.2019.0412]
 CHEN Yue,MA Dong-min,FANG Shi-yue,et al.Enrichment and high-yield models of coalbed methane influenced by geologic structures and hydrologic conditions[J].Journal of Xi'an University of Science and Technology,2019,(04):94-105.[doi:10.13800/j.cnki.xakjdxxb.2019.0412]
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构造和水文地质条件耦合作用下煤层气富集高产模式(/HTML)
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西安科技大学学报[ISSN:1672-9315/CN:61-1434/N]

卷:
期数:
2019年04期
页码:
94-105
栏目:
出版日期:
2019-07-30

文章信息/Info

Title:
Enrichment and high-yield models of coalbed methane influenced by geologic structures and hydrologic conditions
文章编号:
1672-9315(2019)04-0644-12
作者:
陈 跃1马东民12方世跃1郭 晨1杨 甫 2侯东壮1
(1.西安科技大学 地质与环境学院,陕西 西安 710054; 2.国土资源部 煤炭资源勘查与综合利用重点实 验室,陕西 西安 710021)
Author(s):
CHEN Yue1MA Dong-min12FANG Shi-yue1GUO Chen1YANG Fu2HOU Dong-zhuang1
(1.College of Geology and Environment,Xi'an University of Science and Technology,Xi'an 710054,China; 2.Key Laboratory of Coal Resource Exploration and Comprehensive Utilization,Ministry of Land and Resources,Xi'an 710021,China)
关键词:
煤层气富集高产 耦合分析 构造条件
Keywords:
enrichment and high production of coalbed methane coupling analysis structure conditions
分类号:
P 618.11; TD 84
DOI:
10.13800/j.cnki.xakjdxxb.2019.0412
文献标志码:
A
摘要:
构造和水文地质条件对煤层气富集成藏和开发具有重要影响,为研究煤层气富集和产出过程中不同 构造和水文地质条件耦合效应,文中以鄂尔多斯盆地东缘为例,通过详细研究不同区块构造、水文地质条 件对煤层气富集和产出的影响,总结出构造和水文地质条件耦合作用下煤层气富集模式,并且结合典型煤 层气开发区块产能特征提出了有利于煤层气开发的高产模式。结果表明:逆断层、向斜轴部以及单斜构造 下部有利于煤层气的富集保存,而正断层和背斜轴部容易导致煤层气的逸散; 地下水矿化度高的弱径流区 、滞留区,有利于煤层气富集; 北部准格尔、保德等低煤阶地区为低煤阶次生生物气补充型富集模式,中 部柳林地区为盆缘斜坡带水力封堵型富集模式,南部大宁—吉县地区为构造—水动力复合型富集模式; 提 出了弱水动力单斜上倾方向高部位高产模式、弱水动力背斜(或鼻状构造)轴部高产模式以及弱水动力正 断层远端构造高部位高产模式3种高产模式。
Abstract:
Structural and hydrological conditions have significant influence on coalbed methane accumulation and development.In order to study the coupling effect of structural and hydrological conditions on coalbed methane enrichment and production,in this paper,taking the eastern margin of Ordos Basin as a case,the accumulation models of coalbed methane in the study area will be summarized,and the high-yield models be presented according to the study of the coalbed methane production characteristics of the typical development blocks,based on the intensive study of the effects of the particular geologic structures and hydrologic conditions on the accumulation and development of coalbed methane in different blocks.The results show that reverse faults,the axial part of syncline and the bottom of monoclinic are favorable for gas enrichment,but gases are easy to escape near normal faults and the axial part of anticline.The stagnant zone and the weak run-off zone with high groundwater mineralization are favorable for coalbed methane enrichment.The secondary biogenic gas supplement model in low coal rank in Zhungger and Baode,the hydraulic sealing model of the slope in the margin of basin in Sanjiao and Liulin,and the structural and hydraulic sealing united model in Daning-Jixian are summarized.Furthermore,three high-yield models are proposed,i.e.,weak hydrodynamic updip of the monocline model,weak hydrodynamic axial part of the anticline or nose-like structure model,and weak hydrodynamic structural high far from the normal faults.

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备注/Memo

备注/Memo:
收稿日期:2018-09-13 责任编辑:李克永 基金项目:国土资源部煤炭资源勘查与综合利用重点实验室开放课题(KF2019-2,ZKF2018-1,KF2018- 4,ZP2018-2),陕西省自然科学基础研究计划(2019JQ-245),中国博士后科学基金(2019M653873XB),陕西省 教育厅专项科学项目(17JK0492) 第一作者:陈 跃(1988-),男,安徽安庆人,博士,讲师,E-mail:cyxust@126.com 通信作者:马东民(1967-),男,陕西合阳人,博士,教授,E-mail:mdm6757@126.com 陈 跃,马东民,方世跃,等.构造和水文地质条件耦合作用下煤层气富集高产模式[J].西安科技大学学 报,2019,39(4):644-655. CHEN Yue,MA Dong-min,FANG Shi-yue,et al.Enrichment and high-yield models of coalbed methane influencedby geologic structures and hydrologic conditions[J].Journal of Xi'an University of Science and Technology,2019,39(4):644-655.
更新日期/Last Update: 1900-01-01