摘要
热解气相色谱录井技术用于常规油质储集层的解释评价主要是依据其谱图形态特征来实现,对于稠油油质储集层而言尚不适用,必须针对稠油储集层分析其谱图特征及其他录井手段相结合综合解释,才能实现有效评价。以松辽盆地西部斜坡区稠油储集层为例,在详述热解气相色谱仪工作原理并对比分析常规储集层与稠油储集层热解气相色谱不同表现特征及其原因的基础上,通过对该区13口井25个试油层的谱图形态的统计分析,分别归纳了油层、油水同层和水层的谱图形态特征,结合岩石热解含油气总量、轻烃分析谱图、荧光显微图像实现了稠油储集层的有效解释评价。实例分析表明,利用该综合解释评价法得出的结论与试油结果吻合,同时对于其他稠油区储集层的解释评价具有一定的指导意义。
Pyrolysis gas chromatography logging technique is used for interpreting and evaluating conventional oil reservoirs,which is mainly realized by the morphologic characteristics of its spectrum,it is not applicable for heavy oil reservoirs,the effective evaluation can be achieved by combining the spectra of heavy oil reservoirs with other mud logging methods.Taking the heavy oil reservoirs in the western slope of Songliao Basin as an example,on the basis of describing the work principles of pyrolysis gas chromatograph and making a comparative analysis of different features of pyrolysis gas chromatograph between conventional reservoirs and heavy oil reservoirs and its reasons,and the statistical analysis on spectrum morphology for 25 testing layers from 13 wells in this area,the authors summarized the features of the spectrum morphology for oil layers,oil-water layers and water layers,combined with the hydrocarbon content of rock pyrolysis,light hydrocarbon analysis spectrum and fluorescence microscopic images to realize an effective interpretation and evaluation on heavy oil reservoirs.The example analysis showed that the conclusions from using this comprehensive interpretation and evaluation method were consistent with the results of oil test,the method has a certain guiding significance for reservoir interpretation and evaluation in other heavy oil areas.
出处
《录井工程》
2014年第3期46-50,101-102,共5页
Mud Logging Engineering
关键词
稠油层
热解气相色谱
谱图特征
荧光显微图像
轻烃分析
相关特征
解释评价
heavy oil reservoir,pyrolysis gas chromatograph,spectrum,fluorescence microscopic image,light hydrocarbon analysis,interrelated characteristics,interpretation and evaluation
