地化分析数学方法的研究  

Research on the Mathematical Method of Geochemical Analysis

作　　者：唐莉[1] TANG Li(School of mathematics Science,Daqing Normal University,Daqing 163712,China)

机构地区：[1]大庆师范学院数学科学学院,黑龙江大庆163712

出　　处：《化工管理》2021年第9期12-15,共4页Chemical Engineering Management

基　　金：大庆师范学院教师教育学院“地化分析数学方法的研究”(zdy-2019-71)。

摘　　要：国内地化录井技术对油气层进行评价的方法已经得到广泛的应用,通过结合热解气相色谱参数,则可以确定采出的程度、水洗强度等方面的储层的开发水平,可以提供油田开发动态的含油性参数,并为开发设计提供有效的依据。对于其它参数,因影响因素较多、要求数据应用解释人员的素质高,因而在现场解释评价中的应用范围就相对较少。因此合理有效地求取烃类的评价参数已成为一个急需解决的重要问题,对求取和评价储层含油度具有重要意义。文章研究的主要内容是应用数学方法及计算机技术对气相色谱谱图进行描述,通过研究地质录井生产中造成烃类损失的认识,建立具有代表性的求取评价参数,再对地化分析参数进行量化表征处理方法研究,恰当选择对气相色谱资料数学表征前函数整体拟合的基函数,使病态的系数矩阵变成对角矩阵,将实际生产问题转化为数学统计问题,通过用数学方法对实例计算,大大减少了计算量也有效提高了算法的全面性,为提升油藏产出提供了很强的实际指导意义,初步解决了制约地质录井烃类参数损失难题。Domestic geochemical logging technology has been widely used to evaluate oil and gas reservoirs,By combining pyrolysis gas chromatographic parameters,It can provide oil-bearing parameters of oilf ield development performance,and provide effective basis for development design.For other parameters,due to many influencing factors and high quality of data application and interpretation personnel,the scope of application in f ield interpretation and evaluation is relatively small.Therefore,it has become an important problem to calculate the evaluation parameters of hydrocarbon reasonably and effectively,which is of great signif icance to calculate and evaluate the oil content of reservoir.The main content of this paper is to use mathematical methods and computer technology to describe the gas chromatogram.Through the understanding of hydrocarbon loss caused by geological logging production,the representative evaluation parameters are established,and then the quantitative characterization processing method of geochemical analysis parameters is studied,and the basis function of integral f itting function before mathematical characterization of meteorological chromatographic data is properly selected The ill conditioned coeff icient matrix is transformed into a diagonal matrix,and the actual production problem is transformed into a mathematical statistical problem.Through the calculation of examples with mathematical methods,the amount of calculation is greatly reduced,and the comprehensiveness of the algorithm is effectively improved,which provides a strong practical guidance for improving the reservoir output and initially solves the problem of restricting the loss of hydrocarbon parameters in geological logging.

关 键 词：气相色谱谱图解释模型 特征参数 定量解释 

分 类 号：TE39[石油与天然气工程—油气田开发工程]