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Experimental Modelling of Hydrocarbon Migration Processes
KTH, School of Industrial Engineering and Management (ITM), Energy Technology. Gubkin Russian State University of Oil and Gas,Russian Federation.
KTH, School of Industrial Engineering and Management (ITM), Energy Technology. Gubkin Russian State University of Oil and Gas,Russian Federation.
KTH, School of Industrial Engineering and Management (ITM), Energy Technology. Gubkin Russian State University of Oil and Gas,Russian Federation.ORCID iD: 0000-0001-8199-5625
2017 (English)In: Joint AIRAPT-25th and EHPRG-53rd International Conference on High Pressure Science and Technology, 2015, Institute of Physics (IOP), 2017, article id 042040Conference paper (Refereed)
Abstract [en]

One of the most important questions in the frame of the concept of deep abiogenic origin of hydrocarbons is how hydrocarbons generated under the upper mantle conditions could migrate upward to the Earth's crust to form hydrocarbon deposits. Two different ways of fluid migration were proposed and simulated - slow migration during hundreds of years and fast migration-eruption. Influence of the fluid's migration speed on the final hydrocarbon mixture composition was studied. The received results show that the relative chemical composition of the hydrocarbon mixtures probably does not depend on the cooling conditions (the speed of the fluid migration).

Place, publisher, year, edition, pages
Institute of Physics (IOP), 2017. article id 042040
Series
Journal of Physics Conference Series, ISSN 1742-6588 ; 950
Keywords [en]
High-Pressure, Methane, Reduction, Mantle
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-221053DOI: 10.1088/1742-6596/950/4/042040ISI: 000418562300067Scopus ID: 2-s2.0-85038588656OAI: oai:DiVA.org:kth-221053DiVA, id: diva2:1172950
Conference
Joint 25th AIRAPT / 53rd EHPRG International Conference on High Pressure Science and Technology, AUG 30-SEP 04, 2015, Madrid, Spain
Note

QC 20180111

Available from: 2018-01-11 Created: 2018-01-11 Last updated: 2018-02-27Bibliographically approved
In thesis
1. Deep generated methane in the global methane budget
Open this publication in new window or tab >>Deep generated methane in the global methane budget
2018 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

Methane is a significant part of the global carbon cycle. The distribution of methane above and below the Earth’s surface suggests that atmospheric methane might be related to methane originating from the deep mantle.

The purpose of the present study is to identify this relationship between methane emissions to the atmosphere and methane, which can be abiogenically generated within the Earth’s interior. Methane hydrates within the Earth’s surface sediments might be among the possible hosts of migrated deep methane.

In this thesis, experimental work is presented, which aimed to reveal the depth at which methane and other hydrocarbons in the upper mantle are abiogenically generated, considering pT and redox conditions of the surrounding environment. High-pressure, high-temperature experiments were conducted using a large reactive volume device with a toroid-type chamber in specially prepared sample containers.

The present study evaluates the formation of methane and other hydrocarbons at temperatures higher than 300 °C at pressures of 2.5-6.5 GPa despite the redox conditions of the surroundings. These conditions correspond to a depth below 70 km on the surface of a cold subducting slab.

The proposed hypothesis claims that the deep-mantle-generated methane can contribute to the formation of methane hydrates and accumulation of free gas below hydrates. 

Place, publisher, year, edition, pages
Stockholm: KTH Royal Institute of Technology, 2018. p. 66
National Category
Geosciences, Multidisciplinary Energy Engineering Other Chemistry Topics
Research subject
Energy Technology
Identifiers
urn:nbn:se:kth:diva-223609 (URN)T RITA KRV Report 17/08 (Local ID)978-91-7729-656-0 (ISBN)T RITA KRV Report 17/08 (Archive number)T RITA KRV Report 17/08 (OAI)
Public defence
2018-03-14, Kollegiesalen, Stockholm, 13:00 (English)
Opponent
Supervisors
Note

QC 20180226

Available from: 2018-02-27 Created: 2018-02-25 Last updated: 2018-02-27Bibliographically approved

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Mukhina, ElenaSerovaiskii, Aleksandr YuKutcherov, Vladimir G.

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