頁巖氣等溫解吸特性研究
[Abstract]:Shale gas exists in shale reservoir as adsorption state, free state and dissolved state, among which adsorption state is the main occurrence state. It is of great theoretical significance to study the desorption characteristics of shale gas for shale gas exploration and development in China. The conventional geochemical properties of shale samples from Sichuan and Jingmen, Hubei Province, located in the marine shale storage area of southern China were analyzed. The results show that the organic carbon content of shale samples is high and mature. The isotherm desorption experiment of MSB magnetic levitation balance is carried out and the desorption rate and efficiency are calculated. The results show that the desorption amount of shale is very low and has no obvious change at 30 min for 10 MPa. The desorption capacity of shale increases rapidly at 10 ~ 0.5 MPa, which is the main desorption stage, and the adsorption potential theory can be used to judge the desorption of shale gas and the desorption performance of shale samples, and the larger the adsorption potential is, the more unfavorable the desorption is.
【作者單位】: 中國石油大學(xué)(北京)理學(xué)院;
【基金】:國家自然科學(xué)基金項(xiàng)目(41372152)
【分類號】:P618.13;TE37
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本文編號:2462031
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