摘要
定量荧光录井技术在吐哈油田台北凹陷轻质油储集层的应用有效地解决了常规荧光录井很难判断储集层含油性的难题。在阐述定量荧光录井参数意义、标准工作曲线制作、仪器稳定性检测以及样品挑选预处理的基础上,通过对该凹陷轻质油储集层定量荧光录井谱图特征的分析研究,形成了定性识别轻质油储集层的荧光谱图法。利用岩屑、岩心定量荧光分析数据,建立基础资料数据库,根据数据库资料对不同含油气性质储集层的荧光特征参数进行分析与对比,以试油及投产结果为依据,建立了基于特征参数(相当油含量、油性指数和对比级别)的储集层定量解释评价标准。实际应用表明,定性与定量方法相结合,可实现该凹陷轻质油储集层的有效解释评价,总体符合率可达80%以上。
Application of quantitative fluorescence logging technology to light oil reservoirs of Taibei Sag in Tuha Oilfield effectively solved the problem that conventional fluorescence logging is difficult to determine oil content of reservoirs.On the basis of elaborating the significance of quantitative fluorescence logging parameters,making the standard working curves,instrumentation stability testing and sample-selected pre-processed,through the analysis and study on the features of quantitative fluorescence logging spectrum of light oil in the sag reservoirs,the method of fluorescence spectrum of qualitative identification was formed.Using quantitative fluorescence analysis data obtained from cuttings and core,the basic information database was established.According to the database information,the authors analyzed and compared the nature of characteristic parameters of fluorescence from different hydrocarbon reservoirs,established reservoir quantitative interpretation and evaluation criteria based on characteristic parameters(equivalent oil content,oil property index)and contrast levels by taking the oil test and production results as basis.Practical application showed that the method of combination of qualitative with quantitative can achieve the effective interpretation and evaluation for sag′s light oil reservoirs,the overall coincidence rate can reach 80%.
出处
《录井工程》
2013年第3期55-59,97,共5页
Mud Logging Engineering
关键词
定量荧光
轻质油
标定
谱图
相当油含量
油性指数
对比级别
quantitative fluorescence
light oil
calibration
spectrum
equivalent oil content
oil property index
contrast level
