Application of polymer-composite materials for elements of burille column за авторством Ye. Chernova

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Possibilities of friction force and sidewall sticking reduction on directional and horizontal parts of deep well hole за авторством Ye. Chernova, Ya. V. Kuntsiak

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Ensure the tightness of the casing by design features threaded connections за авторством Ye. Chernova, Ya. V. Kuntsiak

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