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目前已商业化开发的页岩气藏都是含水的。大多数页岩吸附研究用的均是干燥页岩,与实际情况不符。而对于含水页岩吸附这一方向,国内外各学者对这一块的研究不多,故我们对含水页岩在一定温度、不同压力和不同含水率条件下进行等温吸附甲烷实验,含水页岩吸附实验结果表明,随着含水饱和度增大,页岩在相同温度和压力下的吸附量明显减小,在含水饱和度相同时,温度一定,页岩吸附量随着压力升高而增大。
Shale gas reservoirs that have been commercially developed are all water-bearing. Most shale adsorption studies are done using dry shale, which is not in accordance with the actual situation. As for the adsorption of water-bearing shale in this direction, many scholars at home and abroad have not done a lot of research on this block. Therefore, we carried out isothermal adsorption experiments of methane on water-bearing shales at a certain temperature, different pressures and different moisture contents, The experimental results show that with the increase of water saturation, the adsorption amount of shale under the same temperature and pressure decreases obviously. When the water saturation is the same, the temperature is constant and the adsorption amount of shale increases with the increase of pressure.