测井相自动识别程序及地质应用  

AUTOMATIC LOG FACIES IDENTIFICATION PROGRAM AND ITS APPLICATIONS

作　　者：赵瑾芳 李英辉[1] 肖义越[2] 

机构地区：[1]海洋石油测井公司 [2]中国科学院地质研究所

出　　处：《中国海上油气（地质）》1991年第4期17-23,共7页China Offshore Oil and Gas(Geology)

摘　　要：测井相自动识别程序（MATIDEN）是将自动确定岩性程序（CLLOG）处理所得到的岩性剖面进而划分测井相的程序。首先需要选择工区内相同沉积单元中的纯泥岩段，做为对比的标准层，将所有井的测井曲线进行标准化。后应用CLLOG程序对标准化的的测井曲线进行处理，得到主成分曲线PC1，再以此为依据建立工区的测井相识别模式（识别矩阵）。MATIDEN程序是通过识别矩阵对未知测井相进行识别，确定其归属类型。由于该程序运行时，不对未知测井相特征值进行计算，所以不需输入未知测井相的全部特征值，只用数字“1”、“2”分别表示未知测井相“有”、“无”相应的特征，“3”表示对应的特征“未纪录”。通过X－5井的实际应用说明该程序有较高的识别能力。Automatic log facies identification program (MATIDEN) is a program to identify log facies with the lithology column obtained from automatic lithology identification program (CCLOG).At first,net shale interval of the same sedimentary unit in the study section needs to be picked out as correlation marker to normalize logs from all wells.Then,CCLOG program is used to proccess the normalized logs to obtain main log PCI.On that basis,log facies indentification model (identification array) is set up.Program MATIDEN identifies the unknown log facies and determines their types with identification array.Because no calculation of characteristic values of log facies need to be input,'1'/'2' is only used to represent that the unknown log facies 'have'/'have not'the corresponding features,respectively.'3' represents the corresponding features are 'not recorded'.Practical application in Well X-5 proved that the program is highly efficient in the identification of log facies.

关 键 词：测井相 自动识别程序 识别模式 识别矩阵 归类算法 积沉相 

分 类 号：P631.84[天文地球—地质矿产勘探]