张开军^1,2,张强³,魏迎春³,李昌峰³,王安民³
ZHANG Kaijun^1,2, ZHANG Qiang³, WEI Yingchun³, LI Changfeng³, WANG Anmin³

• 1:北京大学地球与空间科学学院，北京 100871
• 2:中国地质调查局，北京 100037
• 3:中国矿业大学(北京)地球科学与测绘工程学院，北京 100083

摘要(Abstract)：

水文地质特征对煤层气的富集有很大的影响。从水化学类型和水动力条件方面分析了准噶尔盆地南缘硫磺沟地区水文地质特征，探讨了水文地质条件对该区低煤阶煤层气富集的控制作用。结果表明：研究区地表水水化学类型为HCO₃·SO₄-Ca·Na·Mg，地下水水化学类型主要为Cl·SO₄ -（K+Na）·Ca·Mg或者SO₄·Cl-（K+Na）·Ca·Mg。研究区地下水受地形和地质构造的控制，地下水流向大致为由南向北，汇聚到研究区北部的向斜核部。在地下水水化学类型和水动力条件对煤层气富集影响分析的基础上，认为研究区北部的向斜核部有利于煤层气富集。
Hydrogeological conditions are one of the main controlling factors of the low-rank coalbed methane enrichment. The hydrogeological characteristics have been analyzed in Lihuanggou area of the south of Junggar basin based on hydrochemical types and hydrodynamic conditions.The effect of hydrogeological conditions on low-rank coalbed methane accumulation has been discussed.The results show that the hydrochemical type of surface water in the study area is HCO₃·SO₄-Ca·Na·Mg, the hydrochemical type of groundwater is Cl·SO₄-(K+Na)·Ca·Mg or SO₄·CI-(K+ Na)·Ca·Mg. The groundwater flows roughly from south to north controlled by terrains and geological structures and gathers in the syncline core of the northern study area.The syncline core of the northern study area is the enrichment area of low-rank coalbed methane based on the hydrochemical types and hydrodynamic conditions.

关键词(KeyWords)： 准噶尔盆地南缘;硫磺沟地区;水文地质特征;煤层气富集
south margin of Junggar basin;Liuhuanggou area;hydrogeological conditions;coalbed methane enrichment

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目（41402134）

作者(Author): 张开军^1,2,张强³,魏迎春³,李昌峰³,王安民³
ZHANG Kaijun^1,2, ZHANG Qiang³, WEI Yingchun³, LI Changfeng³, WANG Anmin³

DOI: 10.3969/j.issn.1001-1986.2018.01.011

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