基于CCD的光谱测量系统在定量荧光录井中的应用  

The application of spectrum measurement system based on the CCD in quantitative fluorescence logging

作　　者：王超 田野[2] 王嘉[3] 阎治全 元欐 李栋巍 徐延平 

机构地区：[1]天津陆海石油设备系统工程有限责任公司 [2]大庆油田地质录井公司 [3]胜利油田地质录井公司 [4]华北石油商业公司

出　　处：《录井工程》2012年第3期16-19,88,共5页Mud Logging Engineering

摘　　要：利用CCD(电荷耦合元件)光电传感器作为检测器的荧光光谱测量系统在很多领域已得到应用,现将这一技术应用于定量荧光录井。通过检测含油岩石样品(岩心、岩屑、井壁取心)的荧光光谱,定量评价岩石含油丰度及原油性质,为油气层评价提供参数。为了验证基于CCD光学检测器的光谱测量系统的准确性、稳定性、线性,利用光纤作为传感组件,对录井现场的实际样品进行了荧光检测。实验结果表明,与传统的基于PMT(光电倍增管)检测器的光谱测量系统相比,CCD光谱测量系统具有分析周期短、体积小、质量轻、寿命长等优点,并且稳定性、重复性良好,适用于石油勘探录井现场含油岩样的检测。The fluorescence spectrum measurement system using CCD(charge-coupled device) photoelectric sensor as the detector has been widely applied in many areas,the technology is now used in quantitative fluorescence logging.Parameters for reservoir evaluation can be provided by detecting the fluorescence spectroscopy of oil-bearing rock samples(cores,cuttings,sidewall coring) and quantitatively evaluating the oil-bearing abundance of the rock and the properties of crude oil.In order to verify the accuracy,the stability and the linearity of the spectral measurement system based on CCD optical detector,using optical fiber as a sensing assembly,the fluorescence detection on the actual samples was carried out on the logging site.The results showed that compared with traditional spectral measurement system based on PMT(photomultiplier tube) detector,CCD spectroscopy measurement system has the advantages of shorter analysis cycle,small size,light weight,long life and good stability,repeatability,it is applicable to the detection of oil-bearing rock samples on the logging site of petroleum exploration.

关 键 词：CCD荧光光谱 定量荧光录井 油气层评价 含油质量浓度 油性指数 

分 类 号：TH763.5[机械工程—仪器科学与技术]