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Journal articles on the topic 'Hydrates de gaz naturel – Additifs'

Author: Grafiati

Published: 6 July 2024

Last updated: 31 July 2025

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1

Li, Bo, You-Yun Lu, and Yuan-Le Li. "A Review of Natural Gas Hydrate Formation with Amino Acids." Journal of Marine Science and Engineering 10, no. 8 (2022): 1134. http://dx.doi.org/10.3390/jmse10081134.

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Natural gas is a kind of low-carbon energy source with abundant reserves globally and high calorific value. It is cleaner and more efficient than oil and coal. Enlarging the utilization of natural gas is also one of the important ways to reduce carbon emissions in the world. Solidified natural gas technology (SNG) stores natural gas in solid hydrates, which is a prospective, efficient, safe and environmental-friendly strategy of natural gas storage and transport. However, the slow growth rate and randomness of nucleation during natural gas hydrate formation in pure water hinder the industrial

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2

Chu, Yuekang. "Formation and Prevention of Natural Gas Hydrates." International Journal of Scientific Research and Management (IJSRM) 12, no. 12 (2024): 216–21. https://doi.org/10.18535/ijsrm/v12i12.c02.

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Natural gas hydrate is formed under certain temperatures and pressures, which makes it an unavailable clean energy source. However, in industrial production, clogging occurring due to hydrate generation can cause a series of safety accidents and economic losses. In order to solve the hazards of natural gas hydrates in drilling, this paper reviews the formation conditions of natural gas hydrates and the prevention and control measures. In order to inhibit the formation of hydrates, the use of traditional well control measures and the addition of thermodynamic inhibitors have high costs, large d

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3

Liu, Huaxin, Meijun Li, Hongfei Lai, Ying Fu, Zenggui Kuang, and Yunxin Fang. "Controlling Factors of Vertical Geochemical Variations in Hydrate-Rich Sediments at the Site GMGS5-W08 in the Qiongdongnan Basin, Northern South China Sea." Energies 17, no. 2 (2024): 412. http://dx.doi.org/10.3390/en17020412.

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Large amounts of natural gas hydrates have been discovered in the Qiongdongnan Basin (QDNB), South China Sea. The chemical and stable carbon isotopic composition shows that the hydrate-bound gas was a mixture of thermogenic and microbial gases. It is estimated that microbial gas accounts for 40.96% to 60.58%, showing a trend of decrease with the increase in burial depth. A significant amount of gas hydrates is thought to be stored in the mass transport deposits (MTDs), exhibiting vertical superposition characteristics. The stable carbon isotopic values of methane (δ13C1) in the MTD1, located n

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4

Graue, Arne, B. Kvamme, Bernie Baldwin, et al. "MRI Visualization of Spontaneous Methane Production From Hydrates in Sandstone Core Plugs When Exposed to CO2." SPE Journal 13, no. 02 (2008): 146–52. http://dx.doi.org/10.2118/118851-pa.

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Summary Magnetic resonance imaging (MRI) of core samples in laboratory experiments showed that CO2 storage in gas hydrates formed in porous rock resulted in the spontaneous production of methane with no associated water production. The exposure of methane hydrate in the pores to liquid CO2 resulted in methane production from the hydrate that suggested the exchange of methane molecules with CO2 molecules within the hydrate without the addition or subtraction of significant amounts of heat. Thermodynamic simulations based on Phase Field Theory were in agreement with these results and predicted s

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Khan, Muhammad Saad, Bhajan Lal, Hani Abulkhair, et al. "Formation Kinetics Evaluation for Designing Sustainable Carbon Dioxide-Based Hydrate Desalination via Tryptophan as a Biodegradable Hydrate Promotor." Sustainability 15, no. 1 (2023): 788. http://dx.doi.org/10.3390/su15010788.

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Desalination using hydrates is a developing field, and initial research promises a commercially feasible approach. The current study proposes the natural amino acid, namely tryptophan, as a biodegradable gas hydrate promotor for desalination applications to speed up the hydrate formation process. Its kinetic behavior and separation capabilities with CO2 hydrates were investigated. The studies were carried out with varying concentrations (0.5, 1, and 2 wt.%) of tryptophan at different experimental temperatures (274.15, 275.15, 276.15, and 277.15 K) at 3.5 and 4.0 MPa pressure and 1 wt.% brine c

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6

Jarrahian, Azad, and Ehsan Heidaryan. "Natural gas hydrate promotion capabilities of toluene sulfonic acid isomers." Polish Journal of Chemical Technology 16, no. 1 (2014): 97–102. http://dx.doi.org/10.2478/pjct-2014-0017.

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Abstract The purpose of this study was to investigate the natural gas hydrate promotion capabilities of the hydrotrope Toluene Sulfonic Acid (TSA) isomers as an additive. The capabilities of TSA isomers were measured with different concentrations. The optimum additive concentration for hydrate formation was determined for the given pressure, temperature, mixing condition, and cooling time. The natural gas hydrate promotability of para-TSA was found to be 20% and 35% more than meta-TSA and ortho-TSA respectively at the optimum concentration. Beyond the optimum TSA concentration, the hydrate for

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7

Chuvilin, Evgeny, and Dinara Davletshina. "Formation and Accumulation of Pore Methane Hydrates in Permafrost: Experimental Modeling." Geosciences 8, no. 12 (2018): 467. http://dx.doi.org/10.3390/geosciences8120467.

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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 of gas hydrate accumulations in permafrost. To confirm the literature data, the formation of gas hydrates in permafrost saturated with methane has been studied experimentally using natural artificially frozen in the laboratory sand and silt samples,

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8

Luan, Hengjie, Mingkang Liu, Qinglin Shan, Yujing Jiang, Peng Yan, and Xiaoyu Du. "Experimental Study on the Effect of Mixed Thermodynamic Inhibitors with Different Concentrations on Natural Gas Hydrate Synthesis." Energies 17, no. 9 (2024): 2078. http://dx.doi.org/10.3390/en17092078.

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Natural gas hydrate (NGH) is a potential future energy resource. More than 90% of NGH resources exist in the pore medium of seafloor sediments. During the development of deep-sea oil and gas fields, wellbore pipelines are often clogged due to the synthesis of gas hydrates, and the addition of thermodynamic inhibitors is a common solution to prevent hydrate synthesis. In this paper, the effects of two single inhibitors, sodium chloride and ethylene glycol, as well as hybrid inhibitors combining these two inhibitors on the synthesis of methane hydrates were investigated using the self-developed

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9

Dmytrenko, Victoriia, Oleksandr Lukin, and Vasyl Savyk. "The influence of the gas hydrates morphology on the rate of dissociation and the manifestation of self-preservation in non-equilibrium conditions." Technology audit and production reserves 3, no. 1(65) (2022): 39–43. http://dx.doi.org/10.15587/2706-5448.2022.261716.

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The object for the research was samples of artificially formed gas hydrate of different morphology. Gas hydrates are clathrate compounds of water molecules and hydrate-forming gases. They create significant problems for the oil and gas industry. At the same time, they contain enormous natural gas resources. The study of gas hydrates requires the production of quality samples in laboratory conditions and the availability of appropriate laboratory equipment. However, it is customary to use averaged physical indicators when performing calculations and in works on modeling gas-hydrate processes. A

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10

Portnyagin, A. S., I. K. Ivanova, L. P. Kalacheva, and V. V. Portnyagina. "Studying the Formation of Natural Gas Hydrates in a Porous Medium from a Polymer – Solution – Oil Mixture." Chemistry and Technology of Fuels and Oils 638, no. 4 (2023): 24–28. http://dx.doi.org/10.32935/0023-1169-2023-638-4-24-28.

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The article presents the results of studies of equilibrium conditions and kinetic characteristics of the processes of formation of natural gas hydrate in systems of porous medium - water - polymer - calcium chloride - oil under static conditions. It has been established that, formation of methane and natural gas hydrates mixture occurs in the systems under study. The presence of oil in the reaction system does not affect the equilibrium conditions of the gas hydrates formation within the error but reduces the hydrate formation rateand water-to hydrate convertion. The presence of the CaCl2 salt

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11

Goshovskyi, S. V., and Oleksii Zurian. "METHODS AND TECHNOLOGIES OF METHANE GAS EXTRACTION FROM AQUA GAS HYDRATE FORMATIONS." Мінеральні ресурси України, no. 4 (December 28, 2018): 26–31. http://dx.doi.org/10.31996/mru.2018.4.26-31.

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In the bowels of the Earth and in the oceans of the World Ocean, there are practically unlimited resources of natural gas in the solid hydrate state, available to most countries of the world community. The development of gas hydrate deposits is based on the process of dissociation (separation), in which the gas hydrates break down into gas and water. In these technologies, three methods for the development of gas hydrate deposits are proposed: pressure reduction, heating and inhibitor input. Based on the systematized data, the above methods are suggested to be attributed to traditional methods

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12

Kvamme, Bjørn. "Environmentally Friendly Production of Methane from Natural Gas Hydrate Using Carbon Dioxide." Sustainability 11, no. 7 (2019): 1964. http://dx.doi.org/10.3390/su11071964.

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Huge amounts of natural gas hydrate are trapped in an ice-like structure (hydrate). Most of these hydrates have been formed from biogenic degradation of organic waste in the upper crust and are almost pure methane hydrates. With up to 14 mol% methane, concentrated inside a water phase, this is an attractive energy source. Unlike conventional hydrocarbons, these hydrates are widely distributed around the world, and might in total amount to more than twice the energy in all known sources of conventional fossil fuels. A variety of methods for producing methane from hydrate-filled sediments have b

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13

Victoriia, Dmytrenko, Lukin Oleksandr, and Savyk Vasyl. "The influence of the gas hydrates morphology on the rate of dissociation and the manifestation of self-preservation in non-equilibrium conditions." Technology audit and production reserves 3, no. 1(65) (2022): 39–43. https://doi.org/10.15587/2706-5448.2022.261716.

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<em>The object for the research was samples of artificially formed gas hydrate of different morphology. Gas hydrates are clathrate compounds of water molecules and hydrate-forming gases. They create significant problems for the oil and gas industry.</em> <em>At the same time, they contain enormous natural gas resources.</em> <em>The study of gas hydrates requires the production of quality samples in laboratory conditions and the availability of appropriate laboratory equipment. However, it is customary to use averaged physical indicators when performing calculations and in works on m

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14

Borodin, Stanislav L., Nail G. Musakaev, and Denis S. Belskikh. "Mathematical Modeling of a Non-Isothermal Flow in a Porous Medium Considering Gas Hydrate Decomposition: A Review." Mathematics 10, no. 24 (2022): 4674. http://dx.doi.org/10.3390/math10244674.

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Deposits of natural gas hydrates are some of the most promising sources of hydrocarbons. According to studies, at the current level of natural gas consumption, the traditional reserves will last for about 50 years, and the gas hydrate deposits will last for at least 250 years. Therefore, interest in the study of gas hydrates is associated first of all with gas production from gas hydrate deposits. Additionally, gas hydrates are widely studied for solving practical problems, such as transportation and storage of natural gas, utilization of industrial gases and environmental and technological di

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15

Zaporozhets, E. P., and N. A. Shostak. "Mathematical modeling of some features of gas hydrates dissociation." Proceedings of the Voronezh State University of Engineering Technologies 80, no. 2 (2018): 313–22. http://dx.doi.org/10.20914/2310-1202-2018-2-313-322.

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In the modern oil and gas industry, specialists often have to solve multifaceted problems associated with processes of dissociation of technogenic and natural gas hydrates. Known methods of calculation and dissociation studies mainly describe this process with the supply to heat hydrate. However, when using the method of pressure reduction for dissociation, hydrate metastability states are manifested - self-preservation and conservation effects, discovered by Russian and foreign researchers. Available in the literature descriptions of the effects of metastability were obtained as a result of e

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16

Larysa, Pedchenko, and Pedchenko Mykhailo. "Increasing the thermal resistance of shell gas-support structures for use as gas hydrates storages." Technology audit and production reserves 3, no. 1(65) (2022): 27–33. https://doi.org/10.15587/2706-5448.2022.259738.

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<em>Currently, in the world and Ukraine there are difficulties with the provision of natural gas. However, one of the problems is its storage. So, the object of research is the process of storing natural gas in land storages in gas hydrate form. An alternative to traditional technologies can be the transportation and long-term storage of natural gas in the form of gas hydrates. However, the existing reinforced concrete and metal structures, in addition to a significant price, also cannot sufficiently provide effective thermal insulation of the gas hydrate and its tightness.</em> <em>The paper

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17

Su, Pibo, Jinqiang Liang, Huai Cheng, Yaoyao Lv, Wei Zhang, and Zuofei Zhu. "Uncertainty Analysis of Biogas Generation and Gas Hydrate Accumulations in the Baiyun Sag, South China Sea." Microorganisms 13, no. 1 (2024): 5. https://doi.org/10.3390/microorganisms13010005.

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In this study, we use petroleum systems modeling (PSM) to quantitatively simulate the uncertainty of biogenic gas generation modes and their impact on the spatial distribution and resource assessment of gas hydrates in the Baiyun Sag, South China Sea. The results are as follows: (1) Biogenic gas generation is significantly affected by thermal state and organic matter type. Low temperature is a primary reason for gas hydrate occurrence in shallower sediments when sufficient methane gas is present. This may be due to higher thermal conductivity of the overlying sediments, slower sediment burial

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18

Shahnazar, Sheida, Samira Bagheri, Amin TermehYousefi, Javad Mehrmashhadi, Mohd Sayuti Abd Karim, and Nahrizul Adib Kadri. "Structure, mechanism, and performance evaluation of natural gas hydrate kinetic inhibitors." Reviews in Inorganic Chemistry 38, no. 1 (2018): 1–19. http://dx.doi.org/10.1515/revic-2017-0013.

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AbstractIce-like crystal compounds, which are formed in low-temperature and high-pressure thermodynamic conditions and composed of a combination of water molecules and guest gas molecules, are called gas hydrates. Since its discovery and recognition as the responsible component for blockage of oil and gas transformation line, hydrate has been under extensive review by scientists. In particular, the inhibition techniques of hydrate crystals have been updated in order to reach the more economically and practically feasible methods. So far, kinetic hydrate inhibition has been considered as one of

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19

Di Profio, Pietro, Simone Arca, Raimondo Germani, and Gianfranco Savelli. "Novel Nanostructured Media for Gas Storage and Transport: Clathrate Hydrates of Methane and Hydrogen." Journal of Fuel Cell Science and Technology 4, no. 1 (2006): 49–55. http://dx.doi.org/10.1115/1.2393304.

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In the last years the development of fuel cell (FC) technology has highlighted the correlated problem of storage and transportation of gaseous fuels, particularly hydrogen and methane. In fact, forecasting a large scale application of the FC technology in the near future, the conventional technologies of storage and transportation of gaseous fuels will be inadequate to support an expectedly large request. Therefore, many studies are being devoted to the development of novel efficient technologies for gas storage and transport; one of those is methane and hydrogen storage in solid, water-based

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20

Shostak, N. A., and M. A. Samarin. "Method for determining equilibrium thermobaric parameters of the existence of liquefied gas hydrates." Himičeskaâ fizika i mezoskopiâ 27, no. 1 (2025): 8–16. https://doi.org/10.62669/17270227.2025.1.1.

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In comparison with gas hydrates, the issue of describing liquefied gas hydrates has received much less attention, which is due to the low content of condensed gases in natural gas mixtures. However, with the growth of technological requirements for the development of gas and gas-condensate fields, as well as for better collection and preparation of well products, it is important to describe the behavior of hydrates in various thermobaric conditions. This article proposes a new method for determining the equilibrium temperatures and pressures of the existence of condensate hydrates. The method

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21

Dou, Bin, Bin Bin Fan, and Lei Ren. "Research on Methane Hydrate Meta-Stable Property of Gas Hydrates for Application to Natural Gas Storage and Transportation." Advanced Materials Research 676 (March 2013): 97–102. http://dx.doi.org/10.4028/www.scientific.net/amr.676.97.

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Gas hydrates are group ice-like crystalline compounds, which form through a combination of water and suitably sized guest molecules under low temperature and high pressure conditions. The important properties of hydrate are very high gas to solid ratio, 1m3 of hydrate may contain up to 175m3 of gas (at standard condition). When the conditions change, the methane hydrate can dissociate to methane and water. Hydrate meta-stable (self-preservation) property has been reported by some researchers in recent years. If we can utilize the property economically in addition to its high-density gas contai

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22

Pedchenko, Larysa, and Mykhailo Pedchenko. "Increasing the thermal resistance of shell gas-support structures for use as gas hydrates storages." Technology audit and production reserves 3, no. 1(65) (2022): 27–33. http://dx.doi.org/10.15587/2706-5448.2022.259738.

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Currently, in the world and Ukraine there are difficulties with the provision of natural gas. However, one of the problems is its storage. So, the object of research is the process of storing natural gas in land storages in gas hydrate form. An alternative to traditional technologies can be the transportation and long-term storage of natural gas in the form of gas hydrates. However, the existing reinforced concrete and metal structures, in addition to a significant price, also cannot sufficiently provide effective thermal insulation of the gas hydrate and its tightness. The paper substantiates

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23

Tharimela, Raghava, Adolpho Augustin, Marcelo Ketzer, et al. "3D controlled-source electromagnetic imaging of gas hydrates: Insights from the Pelotas Basin offshore Brazil." Interpretation 7, no. 4 (2019): SH111—SH131. http://dx.doi.org/10.1190/int-2018-0212.1.

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Mapping of natural gas hydrate systems has been performed successfully in the past using the controlled-source electromagnetic (CSEM) method. This method relies on differentiating resistive highly saturated free gas or hydrate-bearing host sediment from a less resistive low-saturated gas or brine-bearing host sediments. Knowledge of the lateral extent and resistivity variations (and hence the saturation variations) within sediments that host hydrates is crucial to be able to accurately quantify the presence of saturated gas hydrates. A 3D CSEM survey (PUCRS14) was acquired in 2014 in the Pelot

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Shi, Bohui, Jiaqi Wang, Yifan Yu, Lin Ding, Yang Liu, and Haihao Wu. "Investigation on the Transition Criterion of Smooth Stratified Flow to Other Flow Patterns for Gas-Hydrate Slurry Flow." International Journal of Chemical Engineering 2017 (2017): 1–13. http://dx.doi.org/10.1155/2017/9846507.

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A stability criterion for gas-hydrate slurry stratified flow was developed. The model was based on one-dimensional gas-liquid two-fluid model and perturbation method, considering unstable factors including shear stress, gravity, and surface tension. In addition, mass transfer between gas and liquid phase caused by hydrate formation was taken into account by implementing an inward and outward natural gas hydrates growth shell model for water-in-oil emulsion. A series of gas-hydrate slurry flow experiments were carried out in a high-pressure (>10 MPa) horizontal flow loop. The transition crit

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25

Liu, Li, Guo Sheng Jiang, Fu Long Ning, Yi Bing Yu, Ling Zhang, and Yun Zhong Tu. "Well Logging in Gas Hydrate-Bearing Sediment: A Review." Advanced Materials Research 524-527 (May 2012): 1660–70. http://dx.doi.org/10.4028/www.scientific.net/amr.524-527.1660.

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In exploration for natural gas hydrates, drilling, coring and well logging are the most important access to make deep understanding of the nature of hydrate reservoirs, besides the seismic prospecting methods. Because of the harsh conditions for hydrate stability and the complex of occurrence formations, the drilling and coring generally have a great difficulty and high cost. Therefore, the well logging becomes the priority method. The resistivity and sonic logging method, which were applied as the earliest logging method in the evaluation of hydrate reserviors, have been continuously applied

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Wang, Xiao-Hui, Qiang Xu, Ya-Nan He, et al. "The Acoustic Properties of Sandy and Clayey Hydrate-Bearing Sediments." Energies 12, no. 10 (2019): 1825. http://dx.doi.org/10.3390/en12101825.

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Natural gas hydrates samples are rare and difficult to store and transport at in situ pressure and temperature conditions, resulting in difficulty to characterize natural hydrate-bearing sediments and to identify hydrate accumulation position and saturation at the field scale. A new apparatus was designed to study the acoustic properties of seafloor recovered cores with and without hydrate. To protect the natural frames of recovered cores and control hydrate distribution, the addition of water into cores was performed by injecting water vapor. The results show that hydrate saturation and types

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Guo, Dongdong, Yunhong Zhang, Ling Ji, et al. "Composite Effect of Nanoparticles and Conventional Additives on Hydrate Formation in Seawater-Based Drilling Fluids." Processes 13, no. 7 (2025): 2058. https://doi.org/10.3390/pr13072058.

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The design of high-performance drilling fluid systems is of vital importance for the safe and efficient exploitation of natural gas hydrates. Incorporating appropriate nanoparticles into drilling fluids can significantly enhance drilling fluid loss control, wellbore stability, and hydrate inhibition. However, the combined effects of nanoparticles and conventional additives on hydrate inhibition in drilling fluid systems remain poorly understood. In this study, the influence of nanoparticles on hydrate formation was first evaluated in a base mud, followed by an investigation of their combined e

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Huang, Ruifang, Yusheng Zhao, and Yiming Ma. "The Interaction of Talc, Montmorillonite, and Silica Sand with H2O Influences Methane Hydrate Formation." Energies 16, no. 17 (2023): 6174. http://dx.doi.org/10.3390/en16176174.

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Methane hydrates in natural geological settings are commonly distributed within sediments, with a variety of minerals (such as silica sand, talc, and montmorillonite). The mechanisms that control the influence of sediments on methane hydrate formation remain poorly understood. In this study, we performed experiments on methane hydrate formation in pure H2O with the addition of 3% sediments (montmorillonite, talc, and silica sand). A large-volume stirred reactor (80 mL) and a small-volume unstirred reactor (20 mL) were used. The results show that montmorillonite and talc severely inhibit methan

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Chirkova, Yulia F., Ulukbek Zh Mirzakimov, Matvei E. Semenov, Roman S. Pavelyev, and Mikhail A. Varfolomeev. "Promising Hydrate Formation Promoters Based on Sodium Sulfosuccinates of Polyols." Energies 16, no. 1 (2022): 359. http://dx.doi.org/10.3390/en16010359.

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The use of natural gas as an energy source is increasing significantly due to its low greenhouse gas emissions. However, the common methods of natural gas storage and transportation, such as liquefied or compressed natural gas, are limited in their applications because they require extreme conditions. Gas hydrate technology can be a promising alternative to conventional approaches, as artificially synthesized hydrates provide an economical, environmentally friendly, and safe medium to store energy. Nevertheless, the low rate of hydrate formation is a critical problem that hinders the industria

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Ganteda, Rama Rao, Sai Kiran Burla, Jagan Mohan Reddy Boggu, and Pinnelli S. R. Prasad. "Efficient Storage of Methane in Hydrate Form Using Soybean Powder." Methane 1, no. 3 (2022): 201–9. http://dx.doi.org/10.3390/methane1030016.

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Natural gas is a promising future source for the increasing energy demand. It is partially clean energy with fewer environmental impacts, and it is necessary to develop technologies to cater to the supply chain. Due to their inherent structural properties, gas hydrates or clathrate hydrates are promising materials for capturing and storing methane gas. In the present study, the experimental investigations were performed to assess the utilization of soybean powder (SBP) as a promoting additive compared to sodium dodecyl sulfate (SDS) for methane hydrate formation. The methane hydrate formation

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Ni, Weijun, Guohao Yang, Jie Dong, Yansong Pan, Gang Chen, and Xuefan Gu. "Research and Evaluation of Foam-Drainage Corrosion-Inhibition Hydrate Anti-Aggregation Integrated Agent." Processes 11, no. 9 (2023): 2745. http://dx.doi.org/10.3390/pr11092745.

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In natural gas exploitation, foam drainage, corrosion inhibition and hydrate inhibition of wellbore fluid are conventional operations. However, there is often a problem where multiple chemical agents cannot be effectively used together and can only be used separately, resulting in complex production processes. In this study, the final integrated formulation was determined: 0.1% sodium alpha-olefin sulfonate (AOST) + 0.3% dodecyl dimethyl betaine (BS-12) + 0.3% sodium lignosulfonate + 0.5% hydrazine hydrate. The minimum tension of the integrated agent could be reduced to 23.5 mN/m. The initial

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Zhang, Yue, Zhi Li, Xiaodeng Yang, and Tianduo Li. "Synthesis of Chitosan Derivatives and Their Inhibition Effects on Methane Hydrates." Energies 15, no. 7 (2022): 2675. http://dx.doi.org/10.3390/en15072675.

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In recent years, the study of natural polymer products such as methane hydrate inhibitors has attracted more and more attention in the scientific research field. In order to achieve environmentally friendly and economical methane hydrate inhibitors with high activity, four chitosan derivatives were successfully synthesized and their methane hydrate inhibition effects were compared with chitosan (CS) and carboxymethyl chitosan (CMCS). Under the conditions of 6 MPa, 1 °C and 400 rpm, the induction time of methane hydrate was prolonged by 7.3 times with the addition of 0.1 wt% CS. It was found th

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Mel’nikov, V. P., N. S. Molokitina, A. O. Drachuk, et al. "A NEW BIODEGRADABLE PROMOTER OF METHANE HYDRATE FORMATION." Доклады Российской академии наук. Химия, науки о материалах 512, no. 1 (2023): 107–13. http://dx.doi.org/10.31857/s2686953522600908.

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The course of active development of the Arctic zone of the Russian Federation by companies of the fuel and energy complex implies the development of new methods and approaches to storage and transportation of natural gas in order to reduce the negative impact on the ecosystems of cold regions while maintaining the economic feasibility of its use. This paper proposes a method for optimising the technology of transporting and storing natural gas in the form of gas hydrates using soya lecithin as a promoting additive. Experimental methods show that soya lecithin additive at a concentration of 0.5

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Kowalsky, Michael B., Seiji Nakagawa, and George J. Moridis. "Feasibility of Monitoring Gas-Hydrate Production With Time-Lapse Vertical Seismic Profiling." SPE Journal 15, no. 03 (2010): 634–45. http://dx.doi.org/10.2118/132508-pa.

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Summary Many studies involving the application of geophysical methods in the field of gas hydrates have focused on determining rock-physics relationships for hydrate-bearing sediments, with the goal being to delineate the boundaries of gas-hydrate accumulations and to estimate the quantities of gas hydrate that such accumulations contain using remote-sensing techniques. However, the potential for using time-lapse geophysical methods to monitor the evolution of hydrate accumulations during production and, thus, to manage production has not been investigated. In this work, we begin to examine th

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Wang, Zifei, Kangji Shi, Peng Gao, Lei Yang, and Yongchen Song. "Analysis of the Production Characteristics of Heterogeneous Reservoirs Assisted by Shallow Gas by Depressurization Path." Science Discovery 12, no. 1 (2024): 14–19. http://dx.doi.org/10.11648/j.sd.20241201.13.

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The problems of low gas production rate and low gas production restrict the commercial production of natural gas hydrate. The combined production of hydrate reservoirs and underlying shallow gas reservoirs is expected to make up for this shortcoming. Most natural gas hydrates in the formation exhibit vertical heterogeneous distribution characteristics; There is still little research on the mechanism of its impact on the characteristics of co harvesting. This work focuses on the interaction between vertical heterogeneous hydrate reservoirs and shallow gas layers, and analyzes the mechanism of t

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Gambelli, Alberto Maria, Federico Rossi, and Giovanni Gigliotti. "Usage of a Binary CO2/C3H8 (85/15 vol%) Mixture for Hydrate Production: The Role of the Memory Effect and Phase Boundary Conditions of the System." Energies 18, no. 6 (2025): 1522. https://doi.org/10.3390/en18061522.

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Since it was proposed, the replacement process, in natural gas hydrate reservoirs, has been considered as one of the most promising options to obtain an alternative and potentially carbon-neutral energy source. However, such a process shows high complexity, and its maximum efficiency cannot exceed 75% if carried out with pure carbon dioxide. The addition of minor quantities of other guest species in mixture with carbon dioxide allows higher efficiencies to be reached. This study deepens the production of hydrates with a binary mixture containing carbon dioxide and propane, with corresponding c

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Li, Yanghui, Tingting Luo, Xiang Sun, et al. "Strength Behaviors of Remolded Hydrate-Bearing Marine Sediments in Different Drilling Depths of the South China Sea." Energies 12, no. 2 (2019): 253. http://dx.doi.org/10.3390/en12020253.

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The mechanical behaviors of hydrate-bearing marine sediments (HBMS) drilled from the seafloor need to be understood in order to safely exploit natural gas from marine hydrate reservoirs. In this study, hydrates were prepared using ice powder and CH4 gas, and HBMS from the Shenhu area in the South China Sea were remolded using a mixed sample preparation method. A series of triaxial tests were conducted on the remolded HBMS to investigate the effects of soil particle gradation and the existence of hydrate on the mechanical properties of hydrate reservoirs. The results show that the stiffness and

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Miadonye, Adango, and Mumuni Amadu. "Effect of Methane Gas Hydrate Content of Marine Sediment on Ocean Wave-Induced Oscillatory Excess Pore Water Pressure and Geotechnical Implications." Fuels 6, no. 1 (2025): 4. https://doi.org/10.3390/fuels6010004.

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Methane gas hydrate-bearing sediments hold substantial natural gas reserves, and to understand their potential roles in the energy sector as the next generation of energy resources, considerable research is being conducted in industry and academia. Consequently, safe and economically feasible extraction methods are being vigorously researched, as are methods designed to estimate site-specific reserves. In addition, the presence of methane gas hydrates and their dissociation have been known to impact the geotechnical properties of submarine foundation soils and slopes. In this paper, we advance

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Shen, Shi, Lei Wang, Yang Ge, Xingyu Lu, Jiawei Chu, and Huiyong Liang. "Effect of Hydrate Saturation and Pore Pressure on the Safe Exploitation of Natural Gas Hydrate Resources." E3S Web of Conferences 520 (2024): 01027. http://dx.doi.org/10.1051/e3sconf/202452001027.

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A comprehensive study of the mechanical behaviors of hydrate-bearing sediments (HBSs) is the key to safely exploiting hydrate resources. The mechanical behaviors of HBSs are related to many variables, among which hydrate saturation (Sh) and pore pressure (PP) are vital factors. In addition, Sh and PP are related to the location of hydrates in the subsea layer, so it is of positive significance to investigate their comprehensive influence on the mechanical behavior of HBSs. In this work, a series of triaxial tests were conducted on the HBSs synthesized in the laboratory to explore the influence

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Wu, Peng, Shenghua Yang, Le Wang, Xiangge Song, and Yanghui Li. "Influence of Particle Size Distribution on the Physical Characteristics of Pore-Filling Hydrate-Bearing Sediment." Geofluids 2021 (June 19, 2021): 1–13. http://dx.doi.org/10.1155/2021/9967951.

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Nature gas hydrates (NGHs) are regarded as a potential alternative energy source due to their huge reserves and wide distribution. According to the geophysical surveys, the pore-filling hydrates occupy a large proportion of the global hydrate reserves, especially for the marine regions. Therefore, with a novel pore-scale 3D morphological modeling algorithm, this study systematically studied the effect of the particle size on the physical characteristics of the pore-filling hydrate-bearing sediment (HBS). The pore system evaluations and permeability simulations were performed by utilizing pore

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Li, Qingchao, Lingling Liu, Baohai Yu, Linian Guo, Sheng Shi, and Linchun Miao. "Borehole enlargement rate as a measure of borehole instability in hydrate reservoir and its relationship with drilling mud density." Journal of Petroleum Exploration and Production Technology 11, no. 3 (2021): 1185–98. http://dx.doi.org/10.1007/s13202-021-01097-2.

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AbstractBorehole collapse will pose a threat to the safety of equipment and personnel during drilling operation. In this paper, a finite element multi-field coupling model for investigating borehole collapse in hydrate reservoir was developed. In this model, fluid seepage, heat transfer, hydrate dissociation and borehole deformation are all considered. Based on which, effects of drilling fluid density on both of hydrate dissociation and borehole collapse are investigated. The investigation results show that disturbance of drilling fluid invasion to hydrate reservoir will lead to hydrate dissoc

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Yarakhmedov1, M. B., A. P. Semenov, and A. S. Stoporev. "Effect of Lower Alcohols on the Formation of Methane Hydrate at Temperatures below the Melting Point of Ice." Chemistry and Technology of Fuels and Oils 634, no. 6 (2022): 44–48. http://dx.doi.org/10.32935/0023-1169-2022-634-6-44-48.

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This work revealed that most water-soluble compounds have a dual nature (thermodynamic promotion or hydrate inhibition) depending on thermobaric conditions. Indeed, by lowering the melting point of ice, water-soluble organic compounds expandthe region of water-containing liquid phase existence below 0°C. This work considered typical thermodynamic hydrate inhibitors as alcohols (methanol, ethanol, and isopropanol). It turned out that even methanol does not exhibit inhibitory properties below the ice crystallization line, and it does not affect the equilibrium conditions of methane hydrate forma

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Nazar, Pedchenko. "Development of methods of operative determination of parameters of repeated hydrate formation in layer systems of gas hydrate deposits." Technology audit and production reserves 3, no. 1(65) (2022): 34–38. https://doi.org/10.15587/2706-5448.2022.259263.

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<em>The object of research is the methods of laboratory setting of the parameters of hydrate formation of well production and the design features of the equipment for its implementation. Methane hydrate is becoming a promising topic for a new energy resource. At the same time, hydrostatic formation is one of the most problematic areas in ensuring the transport of well products, and this primarily concerns the production of gas hydrate deposits. An analysis of the thermobaric parameters of the well production of gas hydrate deposits shows that when they are moved by technological lines, they ar

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Xu, Jianchun, Ziwei Bu, Hangyu Li, Xiaopu Wang, and Shuyang Liu. "Permeability Models of Hydrate-Bearing Sediments: A Comprehensive Review with Focus on Normalized Permeability." Energies 15, no. 13 (2022): 4524. http://dx.doi.org/10.3390/en15134524.

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Natural gas hydrates (NGHs) are regarded as a new energy resource with great potential and wide application prospects due to their tremendous reserves and low CO2 emission. Permeability, which governs the fluid flow and transport through hydrate-bearing sediments (HBSs), directly affects the fluid production from hydrate deposits. Therefore, permeability models play a significant role in the prediction and optimization of gas production from NGH reservoirs via numerical simulators. To quantitatively analyze and predict the long-term gas production performance of hydrate deposits under distinct

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ШАКИРОВА, М. В., Н. Л. СОКОЛОВА, Е. В. МАЛЬЦЕВА, Ю. А. ТЕЛЕГИН, and А. О. ХОЛМОГОРОВ. "The features of methane genesis of the gas hydrates in the Far Eastern Seas." Tihookeanskaia geografiia, no. 4(4) (December 25, 2020): 54–64. http://dx.doi.org/10.35735/tig.2020.4.4.006.

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Метан является одним из важных представителей органических веществ в воздушной оболочке Земли. Помимо усиления парникового эффекта увеличение содержания метана в атмосфере может влиять на сокращение концентрации озона в ней, а роль озонового слоя в жизни планеты важна. Одним из важнейших звеньев цикла метана и сопутствующих его потокам других газов являются газовые гидраты. Отношения стабильных изотопов углерода (δ13C) метана и его гомологов – объективные характеристики гидратообразующих газов и связанных с ними газогеохимических полей. Важнейшее значение в оценке изотопных эффектов природных

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ШАКИРОВА, М. В., Н. Л. СОКОЛОВА, Е. В. МАЛЬЦЕВА, Ю. А. ТЕЛЕГИН, and А. О. ХОЛМОГОРОВ. "The features of methane genesis of the gas hydrates in the Far Eastern Seas." Tihookeanskaia geografiia, no. 4(4) (December 25, 2020): 54–64. http://dx.doi.org/10.35735/tig.2020.4.4.006.

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Метан является одним из важных представителей органических веществ в воздушной оболочке Земли. Помимо усиления парникового эффекта увеличение содержания метана в атмосфере может влиять на сокращение концентрации озона в ней, а роль озонового слоя в жизни планеты важна. Одним из важнейших звеньев цикла метана и сопутствующих его потокам других газов являются газовые гидраты. Отношения стабильных изотопов углерода (δ13C) метана и его гомологов – объективные характеристики гидратообразующих газов и связанных с ними газогеохимических полей. Важнейшее значение в оценке изотопных эффектов природных

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Liu, Tao, and Xuewei Liu. "Identification of morphologies of gas hydrate distribution based on amplitude variation with angle analysis." GEOPHYSICS 83, no. 3 (2018): B143—B154. http://dx.doi.org/10.1190/geo2017-0072.1.

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There are two basic distribution morphologies of gas hydrates in nature: pore filling and fracture filling. Identification of gas hydrate morphologies is essential for improved resource evaluation and exploitation. Improper exploitation may cause seafloor instability, lead to atmospheric venting, and exacerbate the greenhouse effect. To identify gas hydrate morphologies, we combine rock-physics modeling and amplitude variation with angle (AVA) analysis to study the theoretical AVA patterns of the bottom simulating reflector (BSR) beneath the pore-filling and fracture-filling gas hydrate bearin

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Wang, Shu Li, Wei Jun Ma, Lin Zhang, and Shi Dong Zhou. "A New Additive Kinetics Model of Natural Gas Hydrate." Advanced Materials Research 512-515 (May 2012): 2103–9. http://dx.doi.org/10.4028/www.scientific.net/amr.512-515.2103.

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The paper developed the new compound accelerator contains liquid hydrocarbons and surfactants, using the hydrate generator to experiment. On the basis of the researches on the generating conditions, mechanism of gas hydrate and experimental phenomena, the new kinetics model considering the compound accelerator affecting is built. A program which can compute the model is designed by Visual B compiler language. The induction time in the conditions of different pressures, different solutions and different gases is respectively calculated. The calculation is good agreement with the experimental da

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Lv, X. F. F., J. Gong, W. Q. Q. Li, B. H. H. Shi, D. Yu, and H. H. H. Wu. "Experimental Study on Natural-Gas-Hydrate-Slurry Flow." SPE Journal 19, no. 02 (2013): 206–14. http://dx.doi.org/10.2118/158597-pa.

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Summary To better understand hydrate-slurry flow, a series of experiments was performed, including water, natural gas, and diesel oil, under 4-MPa system pressure and 1.25-m/s initial linear velocity. The experiments have been conducted in a high-pressure hydrate-flow loop newly constructed at China University of Petroleum (Beijing), and dedicated to flow-assurance studies. A focused-beam reflectance measurement (FBRM) probe is installed in this flow loop, which provides a qualitative chord length distribution (CLD) of the particles/droplets in the system. First, the influence of flow rate on

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Ping, Xiaolin, Guoqing Han, Jiqun Zhang, Hongliang Wang, Changchun Liu, and Jungang Liu. "Study on the Multiphase Flow Behavior in the Jet Pump Lifted Natural Gas Hydrate Wells with Combined Depressurization and Heat Injection Method." Journal of Physics: Conference Series 2834, no. 1 (2024): 012042. http://dx.doi.org/10.1088/1742-6596/2834/1/012042.

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Abstract Natural gas hydrate production tests have been carried out successfully with different exploitation methods and gas recovery drainage technologies. The purpose of this study is to elucidate the fluid flow behavior in the jet pump lifted natural gas hydrate wells and optimize hot water injection parameters for the jet pump drainage gas recovery technology. The mechanism of jet pump drainage recovery of natural gas hydrate wells was analyzed and its applicability to natural gas hydrate exploitation with combined depressurization and heat injection method was demonstrated. In addition, m

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