Title :
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
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 125°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;
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
DOI :
10.1109/IITAW.2009.67
