Efficient one dimensional inversion of induction log data

Author

Chen, S.Y. ; Chew, W.C. ; Kennedy, W.D.

Author_Institution

Dept. of Electr. & Comput. Eng., Illinois Univ., Urbana, IL, USA

Volume

2

fYear

1998

fDate

21-26 June 1998

Firstpage

990

Abstract

The purpose of induction logging is to obtain the conductivity profile in an oil well. It has been shown that without data processing, the apparent conductivity can be distinctly different from the true conductivity due to the skin effect and shoulder effect. In this paper, data processing is reduced to a one dimensional inverse scattering problem. The inversion is performed by using DBIM, which includes all multiple scattering and refraction effects, and hence is suitable for complex objects of high contrasts.

Keywords

electromagnetic induction; electromagnetic wave refraction; electromagnetic wave scattering; geophysical prospecting; geophysical signal processing; inverse problems; oil technology; 1D inverse scattering problem; 1D inversion; DBIM; apparent conductivity; complex objects; conductivity profile; data processing; high contrast; induction log data; multiple refraction effect; multiple scattering effect; oil well; one dimensional inversion; shoulder effect; skin effect; true conductivity; Conductivity; Data processing; Inverse problems; Petroleum; Scattering; Skin effect;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 1998. IEEE

Conference_Location

Atlanta, GA, USA

Print_ISBN

0-7803-4478-2

Type

conf

DOI

10.1109/APS.1998.702116

Filename

702116