A Down-Hole Video Imaging Logging Tool

Imaging logging technology is applied widely in casing inspection, casing scale-removing and downhole ashing because of direct expression and more information. The DHV-05 downhole video is designed, which employed wavelet based image-compression, high speed digital modulation transmission, CPLD base...

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Bibliographic Details
Published in2009 International Conference on Information Engineering and Computer Science pp. 1 - 3
Main Authors Su, Juan, Zhang, Jia-tian, Yan, Zheng-guo, Hu, Chang-ling
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.12.2009
Subjects
Data communication
Demodulation
Digital modulation
Image coding
Inspection
Lighting
Temperature
Testing
Video compression
Wire
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Summary:Imaging logging technology is applied widely in casing inspection, casing scale-removing and downhole ashing because of direct expression and more information. The DHV-05 downhole video is designed, which employed wavelet based image-compression, high speed digital modulation transmission, CPLD based demodulation, special mechanism to achieve downhole video image compression, high speed wire data transmission, down-hole illumination and high temperature. The stability has been proved through the data transmission test on 3000 m wire and 125°C high temperature test.
ISBN:9781424449941
1424449944
ISSN:2156-7379
2156-7387
DOI:10.1109/ICIECS.2009.5364655