Articles with "borehole wall" as a keyword



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An improved method for calculating the peak explosion pressure on the borehole wall in decoupling charge blasting

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Published in 2020 at "International Journal of Impact Engineering"

DOI: 10.1016/j.ijimpeng.2020.103695

Abstract: Abstract The peak explosion pressure acting on the borehole wall in decoupling charge blasting was investigated by employing analytical, numerical, and experimental approaches. The theoretical solution of the pressure increase ratio after collision between an… read more here.

Keywords: peak explosion; borehole wall; explosion pressure; pressure ... See more keywords
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Borehole wall tensile caving instability in the horizontal well of deep brittle shale

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Published in 2021 at "Science Progress"

DOI: 10.1177/00368504211002330

Abstract: Introduction: With the increasing drilling depth of shale formation, downhole collapse is a frequent occurrence, which often manifests as borehole wall caving. Methods: We used the deep shale of the Longmaxi Formation to conduct the… read more here.

Keywords: acoustic velocity; borehole wall; wall; caving instability ... See more keywords