测井技术2011，Vol.35Issue(6)：538-543,6.
基于非均匀背景地层的阵列感应测井聚焦方法研究
On Inhomogeneous Background-based Focusing (IBF) Method for Array Induction Logs
解茜草 1仵杰1
作者信息
- 1. 西安石油大学陕西省光电传感测井重点实验室,陕西西安710065
- 折叠
摘要
Abstract
The standard focusing result of array induction logging is prone to inaccurate when there is serious nonlinear formation. The inhomogeneous background-based focusing (IBF) method is detailed based on the born geometric factor approximation theory. Based on log data change characteristics of HDIL(High-definition Induction Logging), IBF can estimate 2D inhomogeneous background formation model, and then get the background formation key parameters in different depths, such as invasion conductivity, formation conductivity, invasion depth and transition zone depth, etc. Adding processing result of background formation with that of residual error, and doing resolution matching, we get residual error processing result corresponding to 3 different resolutions and 6 logging depths. The 2 ft resolution matching curve processed by IBF method shows that the burr of curve is eliminated, and the separate relationship of curves for different depths is reasonable. It is concluded that the IBF results are better than those produced with the standard focusing method if the formation nonlinearity is serious.关键词
阵列感应测井/非均匀地层/Born几何因子/聚焦方法/非线性Key words
array induction logging/inhomogeneous formation/Born geometric factor/focusing method/nonlinearity分类
天文与地球科学引用本文复制引用
解茜草,仵杰..基于非均匀背景地层的阵列感应测井聚焦方法研究[J].测井技术,2011,35(6):538-543,6.
