温度和压力对泥页岩吸附性能的影响

Abstract

为了研究不同温度和压力共同对泥页岩吸附性能的影响，本文通过选取鄂尔多斯盆地上古生界太原组富有机质泥页岩样品进行了不同温度下的等温吸附实验，得到不同温度点的等温吸附曲线。研究发现，在等压条件下，泥页岩吸附甲烷气量随着温度的增加呈线性减少，在温度和压力的综合作用下，在较低温度和压力区，压力对泥页岩吸附能力的影响大于温度的影响，随着温度和压力的增加泥页岩吸附甲烷气量增大；在较高温度和压力区，温度对泥页岩吸附能力的影响大于压力的影响，泥页岩吸附甲烷气量减少。 In order to study the effect of both temperature and pressure on shale adsorption capability, this paper se- lected organic-rich shale samples of Upper Paleozoic Taiyuan formation in Ordos Basin and then made isothermal ad- sorption test of difference temperature for shale sample. Based on the test data, the isothermal adsorption curves were established at different temperature points. Research is discovered that the shale adsorption quantity are decreased with increasing temperatures under isotonic condition. Affection of pressure is greater than temperature for shale adsorption under the integrated influence of temperatures and pressures in lowness temperature and pressure area, the adsorption quantity of shale are increased with temperature and pressure. Affection of temperature is greater than pressure for shale adsorption in higher temperature and pressure area, the adsorption quantity of shale is decreased.