准噶尔盆地南缘水文地质控气作用及成藏规律研究  

Study on Gas Control by Hydrogeology and Gas Accumulation in the Southern Margin of the Xinjiang Junggar Basin

作　　者：崔德广 李瑞明 王文军 周梓欣 李中博 Cui Deguang;Li Rinming;WangWenjun;Zhou Zixin;Li Zhongbo(Xinjiang Bureau of Coal Geology,Urumqi,Xinjiang,830001,China;No.156 Exploration Team,Xinjiang Bureau of Coal Geology,Urumqi,Xinjiang,830009,China)

机构地区：[1]新疆维吾尔自治区煤田地质局,新疆乌鲁木齐830001 [2]新疆维吾尔自治区煤田地质局一五六煤田地质勘探队,新疆乌鲁木齐830009

出　　处：《新疆地质》2025年第1期103-109,共7页Xinjiang Geology

基　　金：2023年度第二批“天山英才”培养计划“科技创新团队(天山创新团队)”,团队名称:新疆煤层气储层研究及规模有利区优选创新团队(2023TSYCTD0001)。

摘　　要：基于水文地质条件是影响煤层气富集成藏的重要地质因素,通过煤层气富集成藏控制因素及作用分析研究,归纳构建准噶尔盆地南缘存在硫磺沟-米东区水动力滞留区封存性次生生物成藏模式、阜康-吉木萨尔区水动力滞留区微生物改造热成因成藏模式、乌苏-玛纳斯-呼图壁区水动力活跃区浅层生物气补给-深部热成因气逸散成因气成藏模式。结合区域主要煤矿的水文地质参数及封闭性断层的分布,将准噶尔盆地南缘划分为7个水文地质单元,在不同的水动力背景地区,煤层气的赋存规律也存在较大差异,基于此,将准噶尔盆地南缘煤层气勘探潜力区初步划分为硫磺沟-米东封闭性滞留区、阜康-吉木萨尔水动力场较弱局部滞留区和乌苏-玛纳斯-呼图壁、后峡开放性弱径流区。为更好更快实现新疆煤层气勘探开发产能目标,发挥水文地质工作特殊的规律性作用并经实践验证,提出未来准噶尔盆地南缘煤层气勘探开发最有利靶区为硫磺沟-米东、阜康-吉木萨尔区块。Based on the fact that hydrogeological conditions are important geological factors affecting CBM rich and integrated reservoirs,the controlling factors and their functions are analyzed and studied,the reservoir-forming model of sealed secondary organisms in the Sulfa Gul-Midong hydrodynamic stagnant zone,the thermogenic reservoir-forming model of microbial transformation in the Fukang-Jimsal hydrodynamic stagnant zone,and the shallow biogas recharge and deep thermogenic gas escape in the Wusu-Manas-Hutubi hydrodynamic active area in the southern Junggar Basin were concluded Gas accumulation pattern.Synthesize the hydrogeological parameters of major coal mines in the region and the distribution of closed faults,the southern margin of Junggar Basin is divided into 7 hydrogeological units.The occurrence rules of coalbed methane are also very different in regions with different hydrodynamic backgrounds.Based on this,the CBM exploration potential area in the southern margin of Junggar Basin is preliminarily divided into the sulfa Gul-Midong stagnant zone,Fukang-jimsar weak hydrodynamic field and localized retention area,and the open weak runoff area ofWusu-Epic of Manas-Hutubi and Houxia.Synthesize the analysis and research of the above factors,in order to better and faster achieve the production capacity target of Xinjiang CBM exploration and development,the special regularity of hydrogeological work is brought into play and verified by practice,it is proposed that the most favorable target areas of future CBM exploration and development in the southern margin of Junggar Basin are Sulfagou-Midong and Fukang-Jimusar blocks.

关 键 词：示范工程 水动力场 滞留区 矿化度 水文地质单元 

分 类 号：P64[天文地球—地质矿产勘探] P641.46[天文地球—地质学]