CAJ | 학술논문

页岩含气量是页岩含气性评价和有利区域优选的关键性参数，对页岩气资源评价和储量预测具有重要的意义。通过两种实验方法分别测定鄂尔多斯盆地中东部上古生界二叠系山西组页岩含气量，并对两种方法的准确性做了对比和讨论。解析法测定页岩含气量测量直接，数据直观，对取样要求高，测出的页岩含气量更接近真实值。等温吸附实验法取样快速简便，但受实验条件所限，需通过数学模型拟合计算含气量数值，误差较大，适合用于不同岩性和层位的页岩吸附气量的相对比较。通过实验，初步确定鄂尔多斯盆地上古生界山西组页岩含气量为0.82~1.25 m3/ t 岩石之间，0.82 m3/ t 岩石较接近真实值。
혈암함기량시혈암함기성평개화유리구역우선적관건성삼수，대혈암기자원평개화저량예측구유중요적의의。통과량충실험방법분별측정악이다사분지중동부상고생계이첩계산서조혈암함기량，병대량충방법적준학성주료대비화토론。해석법측정혈암함기량측량직접，수거직관，대취양요구고，측출적혈암함기량경접근진실치。등온흡부실험법취양쾌속간편，단수실험조건소한，수통과수학모형의합계산함기량수치，오차교대，괄합용우불동암성화층위적혈암흡부기량적상대비교。통과실험，초보학정악이다사분지상고생계산서조혈암함기량위0.82~1.25 m3/ t 암석지간，0.82 m3/ t 암석교접근진실치。
The shale - gas content is a key parameter of shale - gas bearing evaluation and favorable area preferential selection,and also plays an important role in gas resource evaluation and reserves forecast. The shale - gas content of Shanxi Formation of upper Paleozoic in mid - east of Ordos Basin was respectively measured by the analytic method and the isothermal adsorption method. The analytic method has direct measurement,visual data,high requirement for sampling,and the measured value very close to real value. The isothermal adsorption method has sampling fast and easily,and bigger error of shale - gas content value. The error was caused by mathematical model fitting due to limited experimental conditions. So the isothermal adsorption method is suitable to compare relatively the adsorption capacities of shale in different lithologies and layers. Experimental results showed that the shale - gas content was between 0. 82 m3 and 1. 25 m3 per ton of rock in Shanxi Formation of upper Paleozoic in Ordos Basin,in which 0. 82 m3 per ton of rock is very close to the actual value.