定量荧光录井在三塘湖盆地火成岩储集层评价中的应用

随着定量荧光录井技术的广泛应用,如何将储集层评价由以相对独立的参数特征为基础上升到量化且系列与标准化评价已成为人们关注的焦点。针对三塘湖盆地火成岩储集层与原油性质的特点,进行了几十口井的定量荧光录井技术应用研究,分析了不同油质类型的谱图特征和利用主峰波长及油性指数识别储集层原油性质的方法;在此基础上,通过相当油含量与油性指数和岩心与岩屑样含油产状的统计分析,结合试油与测试结果对比,提出了利用相当油含量、油性指数与含油产状评价储集层的标准,形成了适用于三塘湖盆地火成岩储集层相对规范的评价方法。实际应用表明,该评价方法解释符合率较高,为该盆地原油油质与储集层解释评价提供了有效手段。

The application of quantitative fluorescence logging in the evaluation in igneous reservoir in Santanghu Basin

With the wide uses of the quantitative fluorescence logging technology,it has become a concern to improve the reservoir evaluation from basing on relatively independent parameter characteristics to be quantified,series and standardized evaluation.According to the properties of the igneous rock reservoir and the crude oil in Santanghu Basin,the authors carried out the study on quantitative fluorescence logging technology for dozens of wells,analyzed the spectrum characteristics of the different types of oil,identified the crude oil property by the main peak wavelength and oil property index.Based on this,by the statistical analysis for the equivalent oil content and oil property index,the occurrence of core and cutting samples,combined oil test with the comparison of test results,the authors proposed a standard to evaluate reservoir by using the equivalent oil content,oil property index and oil bearing occurrence,forming a relatively standardized evaluation method for the igneous reservoir in Santanghu Basin.The practical application shows that the interpretation and evaluation consistent rate of the method is higher and it provides an effective means for the interpretation and evaluation of crude oil property and reservoir in the basin.