油型气湿度和成熟度的关系研究Relationship between Petroliferous Gas Humidity and Maturity
谢志清
摘要(Abstract):
通过分析国内外鄂尔多斯、四川、Fort Worth、Arkoma等盆地373个样品油型气湿度与镜质体反射率的关系,发现随热演化程度升高,油型气湿度变小,二者呈负对数相关关系,油型气湿度与热演化程度的这种负对数相关关系,可为页岩气勘探和天然气资源评价提供科学依据。同时,分析天然气湿度与热成熟度关系曲线图,发现干酪根降解气湿度随着热演化程度升高迅速减小,而裂解气湿度相对稳定,这也证实原油裂解气与干酪根直接降解生气的分子热动力学模型存在较大差异。
关键词(KeyWords): 油型气;湿度;碳同位素;热成熟度;负对数相关关系
基金项目(Foundation):
作者(Author): 谢志清
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