论文部分内容阅读
在钻井液污染条件下,准确、快速判别原油荧光显示是定量荧光录井技术的关键。为了寻找一种更科学、实用的技术方法,使该技术向更成熟和完善的程度发展,该文在国内外大量资料调研和室内实验、研究的基础上,首次提出了用于原油荧光显示识别的双谱特征荧光强度比值法。该方法综合提取了发射和同步荧光光谱的多重荧光信息,并利用新研制的原油荧光显示识别分析软件对信息进行智能化分析处理。该方法克服了当前定量荧光录井技术中岩样预处理过程带来的原油荧光信息损失,避免了背景扣除法的偏差。室内模拟实验和现场应用表明,该方法简便、快捷、准确,原油荧光发现率高。
Under the condition of drilling fluid contamination, accurate and rapid determination of crude oil fluorescence is the key to quantitative fluorescence logging technology. In order to find a more scientific and practical technical method to develop the technology to a more mature and perfect level, based on a large amount of domestic and international data research and laboratory experiments and studies, Bispectrum characteristic fluorescence intensity ratio method. The method extracts multiple fluorescence information of emission and synchronous fluorescence spectra synthetically, and intelligently analyzes and processes the information by using the newly developed crude oil fluorescence display recognition analysis software. The method overcomes the loss of fluorescence information of the crude oil caused by the rock sample pretreatment in the current quantitative fluorescence logging technique and avoids the deviation of the background subtraction method. Indoor simulation experiments and field applications show that the method is simple, fast and accurate, and the discovery rate of crude oil fluorescence is high.