A continued fraction method for modeling and inversion of triaxial induction logging tool

2017 ◽  
Author(s):  
Gaoyang Zhu ◽  
Chen Xiang ◽  
Fanmin Kong ◽  
Kang Li
Keyword(s):  
Continued Fraction ◽  
Induction Logging ◽  
And Inversion ◽  
Logging Tool ◽  
Fraction Method

Enhancing the operating range of the multicomponent induction logging tool

2003 ◽  
Author(s):  
Berthold F. Kriegshäuser ◽  
André Santos ◽  
Liming Yu
Keyword(s):  
Operating Range ◽  
Induction Logging ◽  
Logging Tool

Transient response of an induction logging tool in a borehole

Geophysics ◽  
1981 ◽  
Vol 46 (9) ◽  
pp. 1291-1300 ◽  
Author(s):  
W. C. Chew ◽  
S. Gianzero ◽  
K. J. Kaplin
Keyword(s):  
Transient Response ◽  
Simple Algorithm ◽  
Induction Logging ◽  
Vertical Magnetic Dipole ◽  
Long Time ◽  
Double Fourier Transform ◽  
The Difference ◽  
Direct Numerical Integration ◽  
Homogeneous Formation ◽  
Logging Tool

The long time transient response is developed for a point coil transmitter (vertical magnetic dipole) located in a wellbore surrounded by a homogeneous formation. A simple algorithm is derived for the apparent conductivity signal based on the difference between the voltage nulls in a pair of receiver coils which are displaced vertically from the transmitter along the axis of the wellbore. A justification of these results is provided by means of a direct numerical integration (double Fourier transform) and also two separate approximate approaches.

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