Development of Down-hole Video Imaging Logging System

Author

Juan, Su ; Jia-tian, Zhang ; Zheng-guo, Yan

Author_Institution

Key Lab. of Educ. Minist. for Photoelectricity Gas & oil Logging & Detecting, Xi´´an Shiyou Univ., Xi´´an, China

fYear

2009

fDate

21-22 Nov. 2009

Firstpage

309

Lastpage

311

Abstract

Down-hole video captures the borehole images by its mini camera to get real-time information of oil well, it is becoming a hot topic in well logging field. The DHV-05 down-hole 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 125Â°C high temperature test.

Keywords

data compression; demodulation; video coding; video recording; CPLD; DHV-05 down-hole video imaging logging system; borehole images; demodulation; digital modulation transmission; mini camera; real-time information; video image compression; wavelet based image-compression; well logging field; Cameras; Data communication; Demodulation; Digital modulation; Petroleum; Temperature; Testing; Video compression; Well logging; Wire; DHV-05 Down-hole Video; Hige Speed Data Transmission; Image Compression; The Wavelet Transform;

fLanguage

English

Publisher

ieee

Conference_Titel

Intelligent Information Technology Application Workshops, 2009. IITAW '09. Third International Symposium on

Conference_Location

Nanchang

Print_ISBN

978-1-4244-6420-3

Electronic_ISBN

978-1-4244-6421-0

Type

conf

DOI

10.1109/IITAW.2009.67

Filename

5419434