轻烃自动定性及解释方法研究与应用

Study and application of automatic qualitative and interpretation method of light hydrocarbons

在应用轻烃分析技术评价储集层流体性质中,色谱峰的准确定性识别和评价参数选取是影响其解释符合率高低的关键因素。为了排除人为影响,快速准确识别色谱峰,通过大量的录井实践与探索,建立了保留指数轻烃定性方法和多参数综合解释模板,自动判断储集层流体性质。通过实践验证并与试油结论进行对比,该方法便于现场录井人员的应用,为轻烃分析技术在储集层评价中的应用提供了条件。

While light hydrocarbon analysis technique is used to evaluate reservoir fluid property,correct and qualitative distinguishion of gas chromatographic peaks and perferable selection of evaluation parameter are the key factors of affecting its interpretation coincidence rate.In order to eliminate human factors and correctly and quickly distinguish gas chromatographic peaks,through a large amount of mud logging practice and study,the stencil plates of retention index light hydrocarbon qualitative method and multi-parameter comprehensive interpretation were set up,which automatically diagnoses fluid property.Through practice verification and making correlation with oil testing,this method is easy to be used by onsite mud logging personnel,and provides conditions for the application of light hydrocarbon analysis technique in reservoir evaluation.