Pretty hard to log hydrocarbon loaded strata... ;-)Love to see that description on the log! er... SANDSTONE, with lots of organics... colour, black.
They probably aren't coring anyway, so instead the bore gets logged off the cuttings as they blow back up the bore by the compressed air. You would need a serious pump to generate 1000m of head on drilling fluid!
HDR
hardman resources limited
uganda - why no logging?, page-7
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