CAJ | 학술논문

以沁水盆地柿庄南部煤层气井产出水的测试数据为依据，采用统计、对比方法，系统研究了3号煤和15号煤煤层气井产出水离子成分、矿化度及pH动态变化规律。结果发现，排采210d内3号煤煤层气井产出水水型基本保持不变，而15号煤煤层气井产出水类型变化较大，由Na·Mg-Cl型逐渐过渡为Na-HCO3·Cl型。通过分析3号煤和15号煤煤层气井产出水的矿化度变化规律及原因，将15号煤煤层气井产出水的矿化度划分为三个阶段，15号煤煤层气井产出水的pH受季节变化的影响较大，表现为夏季煤层气井产出水的pH值较低，说明受大气降水的影响较严重。
이심수분지시장남부매층기정산출수적측시수거위의거，채용통계、대비방법，계통연구료3호매화15호매매층기정산출수리자성분、광화도급pH동태변화규률。결과발현，배채210d내3호매매층기정산출수수형기본보지불변，이15호매매층기정산출수류형변화교대，유Na·Mg-Cl형축점과도위Na-HCO3·Cl형。통과분석3호매화15호매매층기정산출수적광화도변화규률급원인，장15호매매층기정산출수적광화도화분위삼개계단，15호매매층기정산출수적pH수계절변화적영향교대，표현위하계매층기정산출수적pH치교저，설명수대기강수적영향교엄중。
On the basis of CBM well produced water tested data in the Shizhuang south area, Qinshui Basin, using statistics and compar-ative methods, systematically studied ion composition, total dissolved solid and pH dynamic variation pattern of CBM well produced wa-ter from coal Nos.3 and 15. The result has found that during 210 days of drainage, water type of produced water from coal No.3 is basical-ly unchanged, while from coal No.15 changed considerably, transited from Na-Mg-Cl type to Na-HCO3-Cl type gradually. Through analyses of TDS variation pattern and causation of well produced water from coal Nos.3 and 15, divided TDS of water from coal No.15 in-to three stages, while the pH value is closely related to seasonal variation, appeared as rather low in summer, thus accounted for the im-pact from atmospheric precipitation.