特征化与双感应测井反演技术  

Characterization and Inversion Technique of Dual Induction Log

作　　者：张中庆[1] 张庚骥[1] 汪涵明 

机构地区：[1]山东石油大学勘探系

出　　处：《测井技术》1996年第4期261-267,共7页Well Logging Technology

摘　　要：张中庆等；特征化与双感应测井反演技术，测井技术，１９９６（４）２０，２６１～２６７。本文提出特征化的概念，即测井曲线的有效信息包含在曲线的极值点和拐点上，这些点被称之为测井曲线的特征点。特征点包含了测井曲线的所有信息，反演过程采用最小二乘法，使得推测模型的合成测井曲线与实际测井曲线的差的平方和达到最小。反演建立在正演算法基础上，用混合法做模型的合成测井曲线，并且只对特征点深度进行合成，反复修改模型，当达到一定收敛准则时，停止选代。In this paper,the concept of characterization is put forward, namely, all the useful information is involved in the extreme points and the inflection points. These points are viewed as characteristic points that contain all the logging information. In the inversion procedure,the Least Square is adopted to minimize the sum of error square between simulated logs and measured logs. The inversion, built on the forward algorithm, utilizes hybird method to make composite log. The forward calculation deals only with the depth of the characteristic points, and the models are modified again and again. The iteration does not stop until the covergence principle is satisfied.

关 键 词：感应测井 特征 反演 环境校正 最小二乘法 

分 类 号：P631.819[天文地球—地质矿产勘探]