【摘要】 油气注入史研究对于指导油气勘探具有非常重要的意义。油气储层自生伊利石K Ar同位素测年可以为油气注入时间的研究提供科学依据。文中对油气储层自生伊利石分离提纯及其K Ar同位素测年技术进行了系统介绍。对碎屑含钾矿物杂质对自生伊利石K Ar同位素年龄的影响进行了深入研究 ,建立了一套完整的数据处理技术并提出了“校正年龄”的概念。更多还原

【Abstract】 Understanding of the hydrocarbon filling of the reservior is very important for hydrocarbon exploration. K-Ar dating of authigenic illite in reservior can provide very useful data of the hydrocarbon filling history. The separation of authigenic illite in hydrocarbon reservoirs and its K-Ar dating techniques are described in detail in this paper. Detrital K-bearing minerals such as potassium feldspar and illite in authigenic illite may lead to an erroneous age. For the samples with detrital potassium feldspar and/or detrital illite, it is necessary to find a way to remove the contribution created by these impurities, even at low levels, to the authigenic illite K-Ar age. This paper conclude a detailed study of the impact of contaminant phases on K-Ar age, and as a result, a data processing technique is developed and a new concept named "Corrected Age" is presented.更多还原