CAJ | 학술논문

为了解含水层水文地质参数对煤层气成藏和开采的控制作用，研究了河东煤田三交区块主采煤层的直接含水层组水文地质条件与该区煤层气产能的相关性。结果表明：水力边界、水动力场和水化学场和煤层气赋存特征存在相关性，水位标高、矿化度、影响半径三个水文地质参数的合理匹配可以可获取较好的煤层气富集区，并确定研究区中南部为有利于煤层气富集和成藏的区域；三交井组与碛口井组实际排采数据与该区相应三个水文地质参数也存在关联性，开采中的产气规律与水文地质控气规律相一致，且开采模式可以分为滞后型和同步型两类。该成果对煤层气富集靶区预测和开采具有一定的参考价值和指导意义。
위료해함수층수문지질삼수대매층기성장화개채적공제작용，연구료하동매전삼교구괴주채매층적직접함수층조수문지질조건여해구매층기산능적상관성。결과표명：수력변계、수동력장화수화학장화매층기부존특정존재상관성，수위표고、광화도、영향반경삼개수문지질삼수적합리필배가이가획취교호적매층기부집구，병학정연구구중남부위유리우매층기부집화성장적구역；삼교정조여적구정조실제배채수거여해구상응삼개수문지질삼수야존재관련성，개채중적산기규률여수문지질공기규률상일치，차개채모식가이분위체후형화동보형량류。해성과대매층기부집파구예측화개채구유일정적삼고개치화지도의의。
In order to understand the control effect of hydrogeological parameters on coalbed methane reservoir formation and exploitation, this paper studied on the relation between the coalbed methane productivity and the hydrogeological conditions of the direct aquifers of main coal seam in Sanjiao area of Hedong coalfield. The results show that correlations exist among the coalbed methane (CBM) occurrence characteristics and the hydraulic boundary, hydrodynamic field and hydrochemical field. The reasonable matching of the groundwater level, mineralization degree and influence radius could be used to get the enrichment zone of CBM, and by this, the south-central region is considered to be favorable for accumulation and localization of CBM. Also, there are correlations between these three parameters and the practical data of drainage and production. Gas production laws in producing process are matched with control laws of hydrogeology, and the mining model can be divided into hysteresis and synchronization. These results have an important reference value for the prediction of the enrichment zone and exploitation of CBM.