Добыча метана с океанского дна вряд ли станет возможной и рентабельной в ближайшие 40–50 лет. Таким мнением с онлайн-журналом «Энергия+» поделился научный руководитель Института нефтегазовой геологии и геофизики имени А.А. Трофимука СО РАН академик Михаил Иванович Эпов, комментируя недавнее открытие китайских ученых.
М.И. Эпов
Ранее Китайская академия наук сообщила, что специалисты Института глубоководных исследований изучили дно в районе Курило-Камчатского и Алеутского желобов на северо-западе Тихого океана. На глубине свыше 9,5 километра они обнаружили уникальную экосистему. Составляющие ее организмы непрерывно перерабатывают углекислый газ, образующийся из оседающих остатков живых существ, в метан. В результате на дне образовались большие запасы метана в форме «горючего льда» — газовых гидратов.
– Газовые гидраты встречаются на дне морей и океанов, но они способны существовать лишь в условиях определённых температуры и давления. Когда их начинают поднимать, они быстро тают, газ из них улетучивается. На сегодня нет ни одной страны, где существовали бы применяющиеся на постоянной основе технологии для стабилизации и извлечения таких гидратов, – отметил М.И. Эпов.
По словам Михаила Ивановича, пока добывать метан со дна морей и океанов очень сложно и нерентабельно. Это касается и гидратов, и газа, растворенного в воде: чтобы поднять океанскую воду, насыщенную метаном, с глубины нескольких километров, потребуются гигантские мощные насосы, которые смогут окупить себя спустя несколько десятилетий.
Острой необходимости добывать метан со дна океана на сегодня нет, напомнил эксперт. У человечества есть куда более дешевый, эффективный и хорошо освоенный способ — выделять метан из природного газа, запасов которого хватит на долгие годы.
Источник: https://e-plus.media/news/akademik-ran-rasskazal-kogda-mozhno-budet-dobyvat-metan-so-dna-okeana/
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