An UWB EM borehole imaging system

Author

Guo, Chen ; Liu, Richard C.

Author_Institution

Chang´´an Univ., Xi´´an, China

Volume

2

fYear

2010

fDate

20-23 Sept. 2010

Firstpage

1

Lastpage

4

Abstract

An ultra-wideband (UWB) electromagnetic (EM) short-pulsed borehole imaging method for oil-based mud (OBM) application is introduced in this paper. The short-pulsed borehole imaging system offers more advantages comparing to the conventional dielectric or resistivity imaging tools. A high resolution in both vertical and horizontal directions for well-bore cracks, rugosity, and dielectric dispersion of formations can be obtained by radiating an EM pulse signal with a center frequency of 1.2GHz into well-bore through a wideband antenna system. Transmission Line Matrix (TLM) numerical simulation results are presented to verify the performance of the proposed EM short-pulsed imaging system.

Keywords

drilling (geotechnical); numerical analysis; permittivity; transmission line matrix methods; ultra wideband antennas; UWB EM borehole imaging system; dielectric dispersion; dielectric imaging tools; oil-based mud application; resistivity imaging tools; transmission line matrix numerical simulation; ultra-wideband electromagnetic short-pulsed borehole imaging method; wideband antenna system; Antenna measurements; Antennas; Image resolution; Imaging; Signal resolution; Time domain analysis; Wideband;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultra-Wideband (ICUWB), 2010 IEEE International Conference on

Conference_Location

Nanjing

Print_ISBN

978-1-4244-5305-4

Electronic_ISBN

978-1-4244-5306-1

Type

conf

DOI

10.1109/ICUWB.2010.5615373

Filename

5615373