So you don't think the need to increase the mud weight in the main borehole exaberated the washed out coals? So will still be an issue in the sidetrack.
during logging jobs you have done what methods have they used when this particular issue comes up? Is just avoiding them the only real method. I understand you have limited info to go on but curious what iVZ would be doing to possibly work around this issue.
Ann: Hydrocarbon gas recovered & evaluation program forward plan, page-687
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