Use of alternative energy sources to improve the efficiency of natural gas hydrate technology for gas offshore deposits transportation

Pedchenko, Larysa; Niemchenko, K; Pedchenko, Nazar; Pedchenko, Mykhailo

doi:10.15407/mining12.02.122

Cited by 7 publications

(4 citation statements)

References 17 publications

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“…In the case, when there is an access of a sufficient number of gas molecules to the microzones with supercooled water with a low concentrated inhibitor, then the repeted formation of gas hydrate will occur. In addition, it is known that water, which was previously bound into gas hydrate, has the memory of preliminary structure [23,24]. Therefore, the repeated formation of gas hydrate will occur more intensely in these microzones.…”

Section: Substantiation Of the Experimental Results (Mechanism Of Gas Hydrate Recrystallization To Ice)mentioning

confidence: 99%

Research into phase transformations in reservoir systems models in the presence of thermodynamic hydrate formation inhibitors of high concentration

et al. 2021

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Gas hydrates have been and still remain a difficult problem in the oil and gas industry, solution of which requires considerable efforts and resources. In this work, the mechanism of phase transformations at negative temperatures in the formation of the solid phase is preliminarily studied using the reservoir system models consisting of a gas mixture and a solution of gas hydrate formation inhibitor of thermodynamic action with high concentration in distilled water. A system of three-dimensional lighting and image magnification is used to visually detect phase boundaries by creating optical effects. Thus, in the system “inhibitor solution – gas hydrate – gas” in the process of gas hydrate recrystallization in the conditions close to equilibrium, microzones of supercooled water may occur, which in the absence of gas molecules access is crystallized into ice. The result of such solid phase structure formation is its increased stability in nonequilibrium conditions for a relatively long period of time.

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Section: Substantiation Of the Experimental Results (Mechanism Of Gas Hydrate Recrystallization To Ice)mentioning

confidence: 99%

Research into phase transformations in reservoir systems models in the presence of thermodynamic hydrate formation inhibitors of high concentration

et al. 2021

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“…In this case, only the equilibrium conditions of the hydrate formation process will change [58,59]. It is easier and safer to store and transport methane in the state of gas hydrates to industrial and energy companies for its further use as an energy carrier, which is another advantage of gas hydrate technologies [60,61].…”

Section: Advantages Of Using Gas Hydrate Technologies For Obtaining A...mentioning

confidence: 99%

A new approach to producing a prospective energy resource based on coalmine methane

Sai,

Petlovanyi,

Malashkevych

2023

IOP Conf. Ser.: Earth Environ. Sci.

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The paper describes topical issues of a prospective method for coalmine methane utilization for obtaining an additional valuable energy resource for the regional development of coal-mining areas. It is noted that the development of the extraction of methane resources is very urgent and is of great economic importance for ensuring the energy independence of Ukraine. The experience and technologies of using methane and coalmine gas by global coal-mining companies are analyzed. Modern prospects and opportunities for using coal gas are studied. There is a need to transform the coalmine methane removal system and directions for maximizing the use of its resources in a wide range of concentrations in the composition of gas-air mixtures based on the development of innovative technologies to improve the efficiency and cost-effectiveness of functioning coal-mining enterprises. Attention is focused on the advantages of using gas hydrate technologies for obtaining additional energy resource under conditions of changing coalmine methane concentrations. The specifics of the process of mixed gas hydrate formation from gas mixtures of various geneses have been studied. It has been revealed that it is the coalmine gas-methane composition that determines and forms the basic condition for hydrate formation. The thermobaric conditions for the hydrate formation process at different methane concentrations in gas mixtures of degassing systems have been experimentally determined. The results obtained are the basis for further research on efficiency of creating gas hydrates from coalmine methane and determining its minimum permissible concentration in the gas mixture of degassing systems according to the technological and economic criteria of hydrate formation.

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“…Assessments of the economic efficiency of gas hydrate projects require the accumulation of information and clarifications [62]. This uncertainty is amplified due to the continuing search for both the optimal technologies of gas hydrate field development [63,64] and gas hydrate production for use in the transportation of raw hydrocarbons [65,66].…”

Section: Current Status Of Gas Hydrates Studymentioning

confidence: 99%

Research into Dissociation Zones of Gas Hydrate Deposits with a Heterogeneous Structure in the Black Sea

et al. 2021

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Ukraine is an energy-dependent country, with less that 50% of its energy consumption fulfilled by its own resources. Natural gas is of paramount importance, especially for industry and society. Therefore, there is an urgent need to search for alternative and potential energy sources, such as gas hydrate deposits in the Black Sea, which can reduce the consumption of imported gas. It is necessary to refine the process parameters of the dissociation of gas hydrate deposits with a heterogeneous structure. The analyzed known geological–geophysical data devoted to the study of the offshore area and the seabed give grounds to assert the existence of a significant amount of hydrate deposits in the Black Sea. An integrated methodological approach is applied, which consists of the development of algorithms for analytical and laboratory studies of gas volumes obtained during the dissociation of deposits with a heterogeneous structure. These data are used for the computer modelling of the dissociation zone in the Surfer-8.0 software package based on the data interpolation method, which uses three methods for calculating the volumes of modelling bodies. A 3D grid-visualization of the studied part of the gas hydrate deposit has been developed. The dissociation zone parameters of gas hydrate deposits with different shares of rock intercalation, that is, the minimum and maximum diameters, have been determined, and the potentially recoverable gas volumes have been assessed. The effective time of the process of gas hydrate deposit dissociation has been substantiated. The obtained research results of the dissociation process of gas hydrate deposits can be used in the development of new technological schemes for gas recovery from the deep-water Black Sea area.

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Use of alternative energy sources to improve the efficiency of natural gas hydrate technology for gas offshore deposits transportation

Cited by 7 publications

References 17 publications

Research into phase transformations in reservoir systems models in the presence of thermodynamic hydrate formation inhibitors of high concentration

Research into phase transformations in reservoir systems models in the presence of thermodynamic hydrate formation inhibitors of high concentration

A new approach to producing a prospective energy resource based on coalmine methane

Research into Dissociation Zones of Gas Hydrate Deposits with a Heterogeneous Structure in the Black Sea

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