«Equipment and technologies for oil and gas complex»

The role of deep originated hydrocarbons in the formation of gas hydrate deposits

UDC: 553.98
DOI: -

Authors:

¹ National University of Oil and Gas "Gubkin University", Moscow, Russia
² KTH Royal Institute of Technology, Stockholm, Sweden

Keywords: gas hydrates, abiogenic genesis, gas, extreme thermobaric parameters, hydrocarbon deposits

Annotation:

The article explores the influence of deep hydrocarbons on the formation of gas hydrate deposits. When analyzing hydrocarbon mixtures derived from inorganic carbon and hydrogen compounds under thermobaric conditions corresponding to the Earth's upper mantle and comparing them with samples of natural gas hydrates, a remarkable similarity is observed in both qualitative and quantitative composition. This serves as confirmation of a key aspect of the concept of abiogenic deep origin of hydrocarbons. According to this concept, hydrocarbons present in gas hydrates may originate from deep sources. Gas hydrate deposits likely formed as a result of the vertical migration of deep hydrocarbon fluids through faults and fractures. Consequently, the composition of gas hydrates may directly depend on the thermobaric conditions of abiogenic hydrocarbon synthesis.

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