Evgeny Chuvilin

Evgeny Chuvilin
Skolkovo Institute of Science and Technology | Skoltech · Department of Petroleum Engineering

PhD

About

264
Publications
36,945
Reads
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2,018
Citations
Introduction
Topics of interest: permafrost, gas and gas hydrate in permafrost; gas hydrate formation and dissociation; structure, composition and properties of frozen and hydrate contained sediments; oil contamination in permafrost, physical-chemical processes in freezing and frozen sediments, Arctic shelf, methane emission
Additional affiliations
November 2014 - December 2017
Skolkovo Institute of Science and Technology
Position
  • Leading Research Scientist (part time)
November 2006 - March 2015
Schlumberger Limited
Position
  • Senior Researcher (part time)
July 2001 - December 2002
Education
November 1980 - November 1983
Lomonosov Moscow State University
Field of study
  • Geocryology
September 1975 - May 1980
Lomonosov Moscow State University
Field of study
  • Geocryology

Publications

Publications (264)
Article
Full-text available
Migration of dissolved salts from natural (cryopeg brines, seawater, etc.), or artificial sources can destabilize intrapermafrost gas hydrates. Salt transport patterns vary as a function of gas pressure, temperature, salinity, etc. The sensitivity of the salt migration and hydrate dissociation processes to ambient temperature and to the concentrati...
Article
Full-text available
Salt migration may be another reason why pore-gas hydrates dissociate in permafrost, besides pressure and temperature changes. Temperature variations in frozen hydrate-saturated sediments interacting with a NaCl solution have been studied experimentally at a constant temperature,~-6 oC typical for permafrost. The experiments with frozen sandy sampl...
Article
Full-text available
Climate warming in the Arctic, accompanied by changes in permafrost soil properties (mechanical, thermal, filtration, geophysical), is due to increasing unfrozen pore water content. The liquid component in frozen soils is an issue of key importance for permafrost engineering that has been extensively studied since the beginning of the 20th century....
Article
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The thermal interaction of a gas production well with ice-rich permafrost that bears relict gas hydrates is simulated in Ansys Fluent using the enthalpy formulation of the Stefan problem. The model admits phase changes of pore ice and hydrate (ice melting and gas hydrate dissociation) upon permafrost thawing. The solution is derived from the energy...
Article
The freezing point and unfrozen pore water content are important parameters of frozen soils monitored for various geotechnical and permafrost engineering purposes. The current paper summarizes experimental data using a novel water potential method for determining a freezing point and unfrozen water content. To examine this method, the results of fr...
Article
Significant reserves of methane (CH4) are held in the Arctic shelf, but the release of CH4 to the overlying ocean and, subsequently, to the atmosphere has been believed to be restricted by impermeable subsea permafrost, which has sealed the upper sediment layers for thousands of years. Our studies demonstrate progressive degradation of subsea perma...
Article
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This Special Issue of Geosciences is a collection of twelve research and overview papers devoted to shallow Arctic permafrost as a natural reservoir that stores large amounts of bound gas, mainly methane [...]
Article
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Gas-emission craters discovered in northern West Siberia may arise under a specific combination of shallow and deep-seated permafrost conditions. A formation model for such craters is suggested based on cryological and geological data from the Yamal Peninsula, where shallow permafrost encloses thick ground ice and lenses of intra- and subpermafrost...
Article
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The gas permeability of sandy porous sediments is studied in freezing/thawing and pore gas hydrate formation/dissociation experiments using a specially designed system. The permeability of sandy soil to gas is controlled by phase changes of the pore water components (water, ice, or gas hydrate) depending on temperature and pressure. The gas permeab...
Article
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Natural gas hydrates (primarily methane hydrates) are considered to be an important and promising unconventional source of hydrocarbons. Most natural gas hydrate accumulations exist in pore space and are associated with reservoir rocks. Therefore, gas hydrate studies in porous media are of particular interest, as well as, the phase equilibria of po...
Article
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This article describes the results of an Arctic expedition studying the new giant gas blowout crater in the north of Western Siberia, in the central part of the Yamal Peninsula in 2020. It was named C17 in the geoinformation system “Arctic and the World Ocean” created by the Oil and Gas Research Institute of the Russian Academy of Sciences (OGRI RA...
Article
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The article presents the results of experimental modeling of the possibility of methane hydrate formation in the pore space of finely dispersed sediments at negative temperatures. During the experiments, it was shown that in frozen gas-rich clay, a significant accumulation of methane pore hydrate is possible even at sufficiently low temperatures (−...
Article
Full-text available
The soils freezing point is usually determined by both the direct method of slow cooling with the temperature monitoring during ice crystallization in a supercooled system, and indirect methods using other measured parameters of the soil system with further calculation. The water-potentiometric method for soils freezing point determination based on...
Article
Full-text available
The temperature beginning of soil freezing is currently determined not only by the direct method of slow cooling with the temperature monitoring during ice crystallization in a supercooled system, but also by indirect methods – by calculation with using other measured parameters of the soil system. The developed water-potentiometric method for dete...
Article
Full-text available
The paper presents results of the unfrozen water content determination by using the water-potentiometric method based on measurements of the pore water potential. Frozen soils with different particle size distribution, chemical and mineral composition, salinity and organic matter content (peat) have been used. The correlation of unfrozen water cont...
Article
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Seeps found offshore in the East Siberian Arctic Shelf may mark zones of degrading subsea permafrost and related destabilization of gas hydrates. Sonar surveys provide an effective tool for mapping seabed methane fluxes and monitoring subsea Arctic permafrost seepage. The paper presents an overview of existing approaches to sonar estimation of meth...
Article
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The active emission of gas (mainly methane) from terrestrial and subsea permafrost in the Russian Arctic has been confirmed by ample evidence. In this paper, a generalization and some systematization of gas manifestations recorded in the Russian Arctic is carried out. The published data on most typical gas emission cases have been summarized in a t...
Article
Full-text available
The article presents results of the experimental modeling of the potential methane hydrate formation in the pore space of finely dispersed sediments at negative temperatures. As demonstrated by the experimental results, accumulation of pore methane hydrate in ice-bearing clays saturated with gas is possible in significant amounts even at sufficient...
Article
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Gas accumulation and pressurized unfrozen rocks under lakes (sublake taliks) subject to freezing in shallow permafrost may lead to explosive gas emissions and the formation of craters. Gas inputs into taliks may have several sources: microbially-mediated recycling of organic matter, dissociation of intrapermafrost gas hydrates, and migration of sub...
Article
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Methane is a powerful greenhouse gas, and the abrupt degassing events that recently have formed large craters on the Russian Arctic Yamal and Gydan Peninsulas have caused major concern. Here we present field data on cover sediments and evolution of a gas-emission crater discovered in the Erkuta–Yakha River valley in the southern Yamal Peninsula in...
Article
Full-text available
The study of gas permeability variations in frozen sand samples exposed to subfreezing temperatures during hydrate formation included experimental modeling with the experiments run on a specially designed system, which enabled determination of gas permeability of dispersed soils in a context of freezing and hydrate saturation. The experimentally ob...
Article
Full-text available
The study of gas permeability variations in frozen sand samples exposed to subfreezing temperatures during hydrate formation included experimental modeling with the experiments run on a specially designed system, which enabled determination of gas permeability of dispersed soils in a context of freezing and hydrate saturation. The experimentally ob...
Article
Full-text available
Results of the experimental study of the gas composition and pressure effects on thermal conductivity and heat capacity of frozen and thawed sand saturated with different gases (nitrogen, methane, carbon dioxide, and a mixture of gases (50% CH4 + 50% CO2)) have been presented. According to results, the maximum gas pressure was set below the pressur...
Article
Full-text available
Results of the experimental study of effects of the composition and pressure of gas on thermal conductivity and heat capacity of frozen and thawed sand saturated with different gases (nitrogen, methane, carbon dioxide, and a mixture of gases (50 % CH4 + 50 % CO2)) have been presented. In the experiments, the maximum gas pressure was set below the p...
Article
Full-text available
In the framework of this work, studies on the Yamal crater formed as a result of a cryogenic eruption of a water-gas fluid were carried out. The structure and variations of the composition of the geochemical field along the section of the upper horizons of permafrost are considered on the basis of field work, including the drilling of boreholes nea...
Article
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Confi ned freezing of pore water in gas-saturated sediments under gas pressure associated with cryogenic gas concentration is studied experimentally. The behavior of pore water freezing temperature in pressurized sediments is modeled for diff erent saturating gases: nitrogen, methane, carbon dioxide, and a CH4 + CO2 (1:1) mixture. Natural sand and...
Article
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Large hydrate reservoirs in the Arctic regions could provide great potentials for recovery of methane and geological storage of CO2. In this study, injection of flue gas into permafrost gas hydrates reservoirs has been studied in order to evaluate its use in energy recovery and CO2 sequestration based on the premise that it could significantly lowe...
Article
Full-text available
Confined freezing of pore water in gas-saturated sediments under gas pressure associated with cryogenic gas concentration is studied experimentally. The behavior of pore water freezing temperature in pressurized sediments is modeled for different saturating gases: nitrogen, methane, carbon dioxide, and a CH4 + CO2 (1:1) mixture. Natural sand and si...
Article
Natural eruptions in shallow permafrost with formation of large craters reported lately from gas-producing regions of the Russian Arctic may result from pressure buildup in freezing closed zones of gas-saturated unfrozen soil (taliks). Under certain conditions, increasing pressure may lead to hydraulic fracture of the overlying permafrost, with ens...
Article
Full-text available
The formation of pore gas hydrates in frozen and thawing sand and silt sampled in permafrost areas has been studied in experiments using a special system. As demonstrated by the experimental results, gas hydrates form rapidly in gas-saturated sediments at constant negative temperatures from 0 to –8 °C. The accumulation kinetics of pore gas hydrates...
Article
Full-text available
At present, the Russian Arctic is the most promising and actively explored region. This is due to the discovery, exploration and commissioning of new oil and gas fields in this region. However, their development is complicated due to numerous factors and, above all, the difficult permafrost-geological situation associated with the presence of a thi...
Article
Full-text available
Destabilization of intrapermafrost gas hydrates is one of the possible mechanisms responsible for methane emission in the Arctic shelf. Intrapermafrost gas hydrates may be coeval to permafrost: they originated during regression and subsequent cooling and freezing of sediments, which created favorable conditions for hydrate stability. Local pressure...
Conference Paper
Turonian reservoirs of the Western Siberia are one of the most promising hydrocarbon sources of the above senomanian sediments. However, gas reserves, associated with the Turonian deposits, are difficult to recover, due to the peculiarity of their composition, occurrence conditions and the properties variability course by possible hydrate formation...
Conference Paper
The results of thermal modeling of the interaction of a gas production well with permafrost applied to Bovanenkovo gas-condensate field showed that for 30 years (well lifetime) the thawing halo of permafrost soils can reach 7-10 meters. However, for the interval equipped with vacuum thermal insulation of the lift pipe, there were no permafrost duri...
Article
Full-text available
This paper summarizes current understanding of the processes that determine the dynamics of the subsea permafrost–hydrate system existing in the largest, shallowest shelf in the Arctic Ocean; the East Siberian Arctic Shelf (ESAS). We review key environmental factors and mechanisms that determine formation, current dynamics, and thermal state of sub...
Article
Full-text available
Destabilization of intrapermafrost gas hydrate is one possible reason for methane emission on the Arctic shelf. The formation of these intrapermafrost gas hydrates could occur almost simultaneously with the permafrost sediments due to the occurrence of a hydrate stability zone after sea regression and the subsequent deep cooling and freezing of sed...
Article
Full-text available
The formation of pore gas hydrates in frozen and thawing sand and silt sampled in permafrost areas has been studied in experiments using a special system. As demonstrated by the experimental results, gas hydrates form rapidly in gas-saturated sediments at constant negative temperatures from 0 to –8 °C. The accumulation kinetics of pore gas hydrates...
Article
Full-text available
The geomechanical stability of the permafrost formations containing gas hydrates in the Arctic is extremely vulnerable to global warming and the drilling of wells for oil and gas exploration purposes. In this work the effect of gas hydrate and ice on the geomechanical properties of sediments was compared by triaxial compression tests for typical se...
Article
The climate system is changing globally, and there is substantial evidence that subsea permafrost and gas hydrate reservoirs are melting in high-latitude regions of the Earth, resulting in large volumes of CO2 (from organic carbon deposits) and CH4 (from gas hydrate reserves) venting into the atmosphere. Here, we propose the formation of flue gas h...
Article
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The paper presents the results of an experimental thermal conductivity study of frozen artificial and natural gas hydrate-bearing sediments at atmospheric pressure (0.1 MPa). Samples of hydrate-saturated sediments are highly stable and suitable for the determination of their physical properties, including thermal conductivity, due to the self-prese...
Article
Full-text available
Over the past few decades, development of innovative techniques for carbon capture and storage (CCS) from power plant flue gas has become imperative due to substantial increase in the global atmospheric concentration of greenhouse gases, particularly anthropogenic CO2. In this regard, it is of utmost importance to have accurate thermodynamic experi...
Article
Full-text available
Favorable thermobaric conditions of hydrate formation and the significant accumulation of methane, ice, and actual data on the presence of gas hydrates in permafrost suggest the possibility of their formation in the pore space of frozen soils at negative temperatures. In addition, today there are several geological models that involve the formation...
Article
Full-text available
Gases releasing from shallow permafrost above 150 m may contain methane produced by the dissociation of pore metastable gas hydrates, which can exist in permafrost due to self-preservation. In this study, special experiments were conducted to study the self-preservation kinetics. For this, sandy samples from gas-bearing permafrost horizons in West...
Article
Full-text available
Geological activity on icy planets and planetoids includes cryovolcanism. Until recently, most research on terrestrial permafrost has been engineering-oriented, and many related phenomena have received too little attention. Although fast processes in the Earth's cryosphere were known before, they have never been attributed to cryovolcanism. The dis...
Chapter
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Thermal conductivity of ice- and hydrate-bearing fine-grained porous sediments (soils) has multiple controls: mineralogy, particle size, and physical properties of soil matrix; type, saturation, thermal state, and salinity of pore fluids; and pressure and temperature. Experiments show that sediments generally increase in thermal conductivity upon f...
Article
Full-text available
Permeability and porosity of dispersive rocks in the permafrost well depends on a phase of a pore mosture, which subject to thermobaric and geochemical conditions can take the forms of ice, unfrozen water, gas hydrates (relict and stable). In the lower horizons of the cryolitozone (under the permafrost) a phase composition of pore moisture is usual...
Article
Full-text available
One of the recent trends of the northern gas-producing regions of Russia is the formation of large-diameter craters. The phenomenon is explained by pressure build-up in isolated freezing taliks, which resu lts in frozen rocks fracturing with the subsequent outbreak of taliks’ matter and formation of craters. For assessment of possible conditions fo...
Conference Paper
Full-text available
At present, on the north West Siberia (Yamal Peninsula) there are some unusual craters, associated with gas release from permafrost. One of the possible mechanism is the freezing of the gas-saturated talik and increasing gas pressure up to 1.5 - 2.0 MPa with a gas blowout and crater formation. In this connection the thermodynamic technique of freez...
Article
Full-text available
Special experiments have been carried out to assess gas permeability variations associated with dissociation of pore hydrate in frozen sand samples at negative temperatures. The experiments were run on an originally designed system using frozen samples artifi cially saturated with methane hydrate which either remained stable or dissociated upon pre...
Article
Full-text available
Capturing CO2 from power plant flue gas through hydrate formation is starting to be applied on an industrial scale. Several methods have been developed, and a large number of experiments have been conducted in order to investigate ways of increasing their efficiency. However, most of them suffer from a lack of detailed kinetic studies. In this Lett...