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深埋地质体中广泛分布着储层水,在一定的温度和压力下,水可能会与吡咯类含氮化合物发生一定程度的有机氮—无机氧化学交换。对吡咯与水反应体系的热力学问题进行了探讨,发现当温度高于373.15K时,热力学上吡咯与水就可能发生反应。随着温度升高,反应过程正向进行程度增大,即从热力学的角度看,升高温度对反应有利。利用高温高压模拟装置对吡咯与水反应体系进行了初步的模拟实验研究,通过气相色谱和傅立叶变换红外光谱等分析手段对实验结果进行了进一步验证。结果表明,吡咯和水能够发生化学反应,主要生成呋喃和氨气。研究结果为探讨影响深埋储层中吡咯类含氮化合物保存与分布的有机—无机相互作用机制,提供了热模拟实验依据。
Reservoir water is widely distributed in deep geological bodies. Under certain temperature and pressure, water may undergo some organic-inorganic-oxygen chemical exchange with pyrrole-type nitrogenous compounds. Pyrrole and water reaction system of thermodynamic problems were discussed and found that when the temperature is higher than 373.15K, thermodynamically pyrrole and water may react. As the temperature increases, the progress of the reaction process increases, that is, from a thermodynamic point of view, increasing the temperature is beneficial to the reaction. The pyrrole and water reaction systems were studied by means of high temperature and high pressure simulator. The experimental results were further verified by gas chromatography and Fourier transform infrared spectroscopy. The results show that pyrrole and water can react chemically and produce mainly furan and ammonia. The results provide the basis of thermal simulation in order to explore the organic-inorganic interaction mechanism that affects the preservation and distribution of pyrrole nitrogen compounds in deep reservoirs.