三维定量荧光录井解释评价方法研究  

Study for the three-dimensional quantitative fluorescence logging interpretation and evaluation method

作　　者：姜丽[1] 周启达 

机构地区：[1]大庆钻探工程公司地质录井二公司

出　　处：《录井工程》2011年第4期39-43,82,共5页Mud Logging Engineering

基　　金：大庆钻探工程公司基金项目"三维荧光录井资料解释方法研究"(ZTLJ09-05)

摘　　要：二维定量荧光录井检测精度相对较低,荧光谱图所反映的信息量欠丰富,虽然在一定程度上可以满足录井解释评价的要求,但解释评价符合率低;三维定量荧光录井虽然检测精度高、谱图信息丰富,但目前国内各油田尚无定型的解释评价标准和方法。针对这一现状,以吉林探区为例,在深入分析荧光谱图中反映最大荧光强度特征峰位最佳激发波长和发射波长的基础上,得出了利用特征峰位识别含油样品原油性质的标准;在详细分析如何确定二维、三维油性指数的条件下,建立了运用二维、三维油性指数判断油质的标准;通过对10口井54层岩屑样品的二维、三维定量荧光油性指数的统计分析,结合试油结果,分别建立了二维油性指数与单点标定相当油含量油水层解释评价图板和三维油性指数与体积标定相当油含量油水层解释评价图板。实际应用和统计分析表明,含油样品原油性质的识别标准行之有效,储集层解释评价方法具有一定的可行性。The detection accuracy of two-dimensional quantitative fluorescence logging is relatively low, the amount of information reflected in the fluorescence spectra is not abundant. Although, to a certain extent, it can meet the requirements of mud logging interpretation and evaluation, the coincidence rate for interpretation and evaluation is low. Although the three-dimensional quantitative fluorescence logging has higher detection accuracy with rich amount of spectra information, there are no fixed interpretation and evaluation criteria and methods in domestic oilfields. In response to this situation, taking Jilin exploration area as an example, based on deep analysis for the best excitation and emission wavelengths that can reflect the maximum fluorescence intensity characteristic peak point in fluorescence spectra, the authors obtained the standards of distinguishing crude oil properties of oil bearing samples by using characteristic peak point. Under the condition of detailed analysis on how to determine the two-dimensional and three-dimensional oil index, the oil quality standards were established. Through two dimensional and three dimensional quantitative fluorescence oil index statistical analysis for 10 wells and 54 layers of cutting samples and combined with the results of the oil testing, the authors respectively established an oil-water layer interpretation and evaluation chart of two dimensional oil index with single-point calibration of equivalent oil bearing amount and an oil-water layer interpretation and evaluation chart of three dimensional oil index with volume calibration of equivalent oil bearing amount. Practical applications and statistical analysis showed that the distinguishing standards of oil properties for oil bearing samples are effective and the reservoir interpretation and evaluation methods have certain feasibility.

关 键 词：原油性质 定量荧光 录井特征峰位 二维油性指数 三维油性指数 储集层 解释评价 

分 类 号：TE142[石油与天然气工程—油气勘探]