河东煤田三交区块煤层气田主含水岩组水动力场特征与控气规律

连会青，尹尚先,李小明,孙红涛

doi:10.11764/j.issn.1672-1926.2013.02.252

天然气地球科学 >

2013 , Vol. 24 >Issue 2: 252 - 258

DOI: https://doi.org/10.11764/j.issn.1672-1926.2013.02.252

非常规天然气

河东煤田三交区块煤层气田主含水岩组水动力场特征与控气规律

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1.华北科技学院，河北燕郊 065201； 2.中国矿业大学(北京)，北京 100083；3.中国林业大学，北京 100083

连会青(1975-)，女，山西忻州人，副教授，博士，主要从事水文地质与工程地质研究. E-mail:lhuiq345@163.com.

收稿日期: 2012-06-14

修回日期: 2012-08-21

网络出版日期: 2013-04-10

基金资助

国家自然科学基金(编号:41072188)；新世纪优秀人才支持计划(编号:NCET-11-0838)；国家“973”计划项目(编号:2013CB227903)；十二五国家科技支撑计划(编号:2012BAK04B04)联合资助.

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The Controlling Law of Hydrodynamic Conditions andCoalbed Methane of Main Aquifers in Hedong Coalfield

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1.North China Institute of Science and Technology,Yanjiao 065201,China；
2.China University of Mining and Technology,Beijing 100083,China;3.China Forestry University,Beijing 100083,China

Received date: 2012-06-14

Revised date: 2012-08-21

Online published: 2013-04-10

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摘要

以河东煤田三交区块主采煤层的直接含水层组为研究对象，选择地下水水位、矿化度、单位涌水量3个指标来表征水动力条件强弱、地下水循环径流强度和含水层富水性状况，探讨了主含水岩组水动力条件对该区煤层气成藏的控制作用。水动力场控气规律研究显示:中南部范围为有利于煤层气富集和成藏的区域；在此基础上，对水动力场控气规律与煤层实测含气性特征的相关性进行了细致分析，用实测煤层气含量数据验证了水动力场控气规律分析结论，并利用具体的钻孔数据，预测了煤层气优势开采区域，在山西组和太原组分别划分出3个区和5个区，山西组最优选的区域位于356^#和343^#钻孔一带,太原组则在311^#和359^#钻孔一带。

关键词： 主含水岩组; 水动力场; 控气规律; 优势开采区域

本文引用格式

连会青，尹尚先,李小明,孙红涛 . 河东煤田三交区块煤层气田主含水岩组水动力场特征与控气规律[J]. 天然气地球科学, 2013 , 24(2) : 252 -258 . DOI: 10.11764/j.issn.1672-1926.2013.02.252

Abstract

In this paper,take the direct aquifer of the main mining coal seams in the Hedong coalfield as a research target,select ground water level,salinity,water inflow as three index to characterize the hydrodynamic conditions,runoff intensity of groundwater circulation and water richness of aquifer,detailed discussion on the role of hydrodynamic conditions of main aquifer on the coalbed methane reservoir in this area have been carried out.The law of controlling factors of hydrodynamic field on gas shows: the central and southern regions are favorable area for the enrichment and accumulation of coalbed methane（CBM）.Based on this,the correlation between this law and the measured gas-bearing property of coalbed has been analyzed.The measured gas-bearing property of coalbed can be used to verify the conclusions by the law.Using drilling data,the CBM advantage mining regions of Shanxi and Taiyuan arquifers are predicted.They are divided into three and five districts,respectively.The most favorable area of Shanxi Formation is near 356^# and 343^# drilling wells,and the favorable area of Taiyuan Formation near 311^# and 359^# drilling wells.

Key words： Main aquifers; Hydrodynamic field; Controlling law; Advantage mining region

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