... and methods The article is an analysis of new data obtained during construction of exploration wells. In addition to traditional methods and criteria used in mud logging, the authors draw attention to the desirability of studying the distribution of hydrogen in the sedimentary cover. New kinds of analyzers that use as a carrier gas air, unlike old systems, which was used as a carrier of hydrogen, allow recording while drilling hydrogen content in the drilled borehole. Results Studied data on the ...

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