Thermodynamic calculation and modeling of the CH4-H2O fluid inclusions

作     者：MAO Shi-de~1,DUAN Zhen-hao~2 1.State Key Laboratory of Geological Processes and Mineral Resources,and School of Earth Sciences and Resources,China University of Geosciences,Beijing,100083,China 2.Key Laboratory of the Earth’s Deep Interior,Institute of Geology and Geophysics,Chinese Academy of Sciences,Beijing 100029, China 

会议名称：《中国矿物岩石地球化学学会第13届学术年会》

会议日期：2011年

学科分类：081803[工学-地质工程] 08[工学] 0818[工学-地质资源与地质工程] 

摘      要：This work reports in detail the application of thermodynamic models or equations of state to the CH-HO fluid inclusions.A general method is presented to calculate the compositions of the CH-HO inclusions using the volume fractions and the dissolution temperatures of CH *** calculate the homogenization pressures and isolines of the CH-HO inclusions,an improved activity-fugacity model is developed to predict the vapor-liquid phase *** phase equilibrium model can predict methane solubility in liquid phase and water content in vapor phase from 273 K to 623 K and from 1 bar to 1000 bar(up to 2000 bar for the liquid phase),within or close to experimental *** to a lot of reliable experimental phase equilibrium data,an average deviation of the water content in the vapor phase and methane solubility in the liquid phase is 4.29%and 3.63%,