Tectonic stress estimation from ultrasonic borehole image logs in a coal bed methane well, northeastern Qinshui Basin, China
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Natural Gas Science and Engineering"
DOI: 10.1016/j.jngse.2018.01.021
Abstract: Abstract Small-scale structures and tectonic stress are known to affect the production of coalbed methane. Ultrasonic borehole image logging (UBI) can be used to identify fractures and breakout zones around the wellbore and to analyze… read more here.
Keywords: ultrasonic borehole; tectonic stress; coal bed; stress ... See more keywords
On Acoustic Signal Compression for Ultrasonic Borehole Imaging
Sign Up to like & getrecommendations! Published in 2017 at "IEEE Transactions on Computational Imaging"
DOI: 10.1109/tci.2017.2670366
Abstract: This paper presents a novel approach for computationally efficient and robust compression for Ultrasonic Borehole Imaging. Although current methods achieve good compression versus accuracy tradeoffs, they inevitably employ iterative schemes, which for resource constrained downhole… read more here.
Keywords: imaging acoustic; ultrasonic borehole; compression; compression ultrasonic ... See more keywords