CAJ | 학술논문

沁水煤层气田枣园区块煤层气开采井产出的水具有高盐度、高矿化度的特点，直接排放可能会造成生态环境的破坏。通过连续跟踪采集枣园区块煤层气井产出水样品，并进行了25项物理化学参数的系统测试，分析了矿化度及各种阴、阳离子的动态变化规律。发现其矿化度、氯离子、钠离子浓度均呈现先高后低的变化趋势，而碳酸氢根离子的变化规律相反，呈现先低后高的特点。水化学类型呈现由Cl—Na型向Cl?HCO3—Na型和HCO3?Cl—Na型变化的规律。产出水中阳离子以 K++Na+离子为主，阴离子3HCO?和 Cl–值较为接近，不存在明显占绝对优势的离子。依据产出水中各离子的变化特点，依据国家Ⅱ类地表水标准，采用回归分析方法，建立了氯离子浓度排采动态变化模型。研究成果为煤层气井产出水处理技术提供了依据。
심수매층기전조완구괴매층기개채정산출적수구유고염도、고광화도적특점，직접배방가능회조성생태배경적파배。통과련속근종채집조완구괴매층기정산출수양품，병진행료25항물이화학삼수적계통측시，분석료광화도급각충음、양리자적동태변화규률。발현기광화도、록리자、납리자농도균정현선고후저적변화추세，이탄산경근리자적변화규률상반，정현선저후고적특점。수화학류형정현유Cl—Na형향Cl?HCO3—Na형화HCO3?Cl—Na형변화적규률。산출수중양리자이 K++Na+리자위주，음리자3HCO?화 Cl–치교위접근，불존재명현점절대우세적리자。의거산출수중각리자적변화특점，의거국가Ⅱ류지표수표준，채용회귀분석방법，건립료록리자농도배채동태변화모형。연구성과위매층기정산출수처리기술제공료의거。
The produced water from CBM well in Zaoyuan block of Qinshui CBM field is characteriaed by high salinity and high mineralization. direct discharge may damage the ecologic environments. Based on the continuous tracking collection of the produced water samples of CBM wells and the systematically testing 25 physical and chemical parameters, the dynamic changes of the salinity and various anions and cations were analyzed. The results show that the concentration of salinity, chloride ion and sodium ion change from high to low, but the concentration of bicarbonate ion changes conversely with the trend from low to high. The water changes from Cl–Na type to Cl?HCO3–Na type and HCO3?Cl–Na type. The cations are mainly K+and Na+ions, and there is no obvious domi-nant anions, 3HCO?and Cl-values are close in the produced water. According to the changes of the ions, the model of chloride ion concentration in the water was established using nonlinear regression analysis.