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Feasibility study of biodegradable coffee ground waste and watermelon rind as water-based drilling fluid additives Gas Sci. Eng. (IF 5.285) Pub Date : 2024-04-18 Chukwuemeka Madu, Foad Faraji, Mardin Abdalqadir, Sina Rezaei Gomari, Perk Lin Chong
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Gas mass transfer characteristics in shales: Insights from multiple flow mechanisms, effective viscosity, and poromechanics Gas Sci. Eng. (IF 5.285) Pub Date : 2024-04-15 Tao Zhang, Jianchun Guo, Fanhui Zeng, Jie Zeng, Cong Lu, Zhihong Zhao
Accurate characterization of gas transport behavior is indispensable for successful shale gas reservoir development. In this study, a fractal-theory-based apparent permeability (AP) model is developed to better characterize real gas mass transfer in shales. The proposed model involves multi-scale organic matter (OM) and inorganic matter (IOM) flow channels and incorporates poromechanics-related dynamic
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Effect of nano-SiO2 particles on THF hydrate induction time and its distribution Gas Sci. Eng. (IF 5.285) Pub Date : 2024-04-13 Chuanwen Sun, Shimin Liu, Shouding Li, Kai Wang, Xiao Li, Zhaobin Zhang
Clathrate hydrate has been studied for a few decades as a potential alternative energy source and gas storage medium. The direct engineering application of hydrate is still struggling due to the slow formation rate and the ambiguity of induction time. To understand the effect of nanoparticles on the hydrate nucleation induction time, we used different amounts and magnitude sizes of nano-SiO particles
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Low temperature hydrogen production from H2S with metal tin by cyclic two-step method Gas Sci. Eng. (IF 5.285) Pub Date : 2024-04-12 Yuangang Duan, Shan Yu, Jiale Ye, Zeai Huang, Ying Zhou
Hydrogen sulfide (HS) is not only a highly toxic and corrosive gas commonly present in the natural gas reservoir, but also valuable resource rich in hydrogen and sulfur. The Claus process is commonly used in industry to handle HS, but it has the disadvantages of generation of SO and waste of hydrogen resources. Alternatively, cyclic two-step decomposition of HS can generate H at low temperatures, which
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Development status of supercritical carbon dioxide thickeners in oil and gas production: A review and prospects Gas Sci. Eng. (IF 5.285) Pub Date : 2024-04-10 Nianyin Li, Haiyan Zhang, Xiaoqiang Ren, Jiayu Wang, Jiajie Yu, Chen Jiang, Hong Zhang, Yue Li
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The effect of methylene blue on stearic acid-aged quartz/CO2/brine wettability: Implications for CO2 geo-storage Gas Sci. Eng. (IF 5.285) Pub Date : 2024-04-07 Fatemah Alhammad, Mujahid Ali, Nurudeen Peter Yekeen, Muhammad Ali, Hussein Hoteit, Stefan Iglauer, Alireza Keshavarz
Carbon dioxide sequestration in geological formations has been proposed as a promising solution to reach net zero carbon emissions but the success of underground CO storage in sandstone formations depends on the brine/CO wettability of sandstone. Research evidence showed that natural geological formation is hydrophobic even in the presence of minute concentration of inherent organic acids. This study
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An encoder-decoder ConvLSTM surrogate model for simulating geological CO2 sequestration with dynamic well controls Gas Sci. Eng. (IF 5.285) Pub Date : 2024-04-06 Zhao Feng, Zeeshan Tariq, Xianda Shen, Bicheng Yan, Xuhai Tang, Fengshou Zhang
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On the stress-dependent tight-rock permeability under anisotropic stress conditions Gas Sci. Eng. (IF 5.285) Pub Date : 2024-04-06 Hui-Hai Liu, Jilin Zhang, Gary Eppler, Mohammed Boudjatit
Permeability is a key parameter for characterizing an unconventional tight-rock reservoir and predicting hydrocarbon production from the reservoir. Because of the technical difficulty in accurately measuring extremely low tight-rock permeability, the permeability measurements have been commonly made in laboratory under hydrostatic (or isotropic stress) conditions. For unconventional reservoirs, stress
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GTFE-Net-BiLSTM-AM: An intelligent feature recognition method for natural gas pipelines Gas Sci. Eng. (IF 5.285) Pub Date : 2024-04-05 Lin Wang, Cheng Hu, Tingxia Ma, Zhongfeng Yang, Wannian Guo, Zhihao Mao, Junyu Guo, He Li
The recognition of pipeline features contributes to its safe management by preventing severe consequences such as leakage resulting from bending deformation and denting under external pressure. However, extracting features of such a facility is complex and challenging when machine learning techniques are applied to feature recognition. Hence, this paper proposes a feature recognition technique for
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Study on the shale fracture geometry influence on nonlinear gas seepage behavior Gas Sci. Eng. (IF 5.285) Pub Date : 2024-04-04 Peng Zhou, Haichun Ma, Jiazhong Qian, Xianfa Wei, Yaping Deng
Shale gas has garnered significant global attention as a novel energy source. Due to its reliance on fractures within rock for production, the study of gas seepage characteristics within fractures is of paramount importance. Many scholars have conducted extensive research on the nonlinear seepage behavior of gas in fractures. However, the different geometric parameters (contact area, mechanical aperture
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Optimizing fracturing techniques for enhanced hydrate dissociation in low-permeability reservoirs: Insights from numerical simulation Gas Sci. Eng. (IF 5.285) Pub Date : 2024-04-04 Zhaobin Zhang, Tao Xu, Shouding Li, Jianming He, Xiao Li, Yuxuan Li, Cheng Lu, Xuwen Qin
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Coal cleat network stimulation through a combination of acidizing and liquid nitrogen fracturing Gas Sci. Eng. (IF 5.285) Pub Date : 2024-04-04 Mohsen Farrokhrouz, Hamed Akhondzadeh, Yongfei Yang, Faisal Ur Rahman Awan, Stefan Iglauer, Maxim Lebedev, Alireza Keshavarz
Gas extraction from Coal Bed Methane has proved challenging mainly due to the low permeability of coals. This study investigated a combination of 2 stimulation techniques, Liquid Nitrogen (LN) fracturing and acidizing, to increase pore structure and cleat network connectivity in coals. Microcomputed Tomography (μ-CT) scanning results suggested that a combination of those 2 applications, in either sequence
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Influence of plasma breakdown on pores and fractures in bituminous coal: A new characterization method of breakdown energy Gas Sci. Eng. (IF 5.285) Pub Date : 2024-04-02 Youping Xu, Zhen Ni, Baiquan Lin
Plasma technology has a potential application prospect in the field of coal seam permeability enhancement. However, the relationship between plasma breakdown energy and the improvement effect of coal pores and fractures is lack of in-depth research. This study proposed a novel method for characterizing the plasma breakdown energy, and three testing techniques, namely, particle size distribution, mercury
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Flow prediction of heterogeneous nanoporous media based on physical information neural network Gas Sci. Eng. (IF 5.285) Pub Date : 2024-03-30 Liang Zhou, Hai Sun, Dongyan Fan, Lei Zhang, Gloire Imani, Shuaishi Fu, Yongfei Yang, Kai Zhang, Jun Yao
The simulation and prediction of fluid flow in porous media play a profoundly significant role in today's scientific and engineering domains, particularly in gaining a deeper understanding of phenomena such as the migration and fluid flow in underground rock formations and the enhancement of oil recovery rates. The flow of fluids in nanoscale porous media requires consideration of the effects of microscale
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Investigation of ground movements induced by underground gas storages via unsupervised ML methodology applied to InSAR data Gas Sci. Eng. (IF 5.285) Pub Date : 2024-03-28 Alberto Manuel Garcia Navarro, Vera Rocca, Alfonso Capozzoli, Roberto Chiosa, Francesca Verga
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Investigation of semi-clathrate formation kinetics for post-combustion CO2 capture in the presence of amino acids Gas Sci. Eng. (IF 5.285) Pub Date : 2024-03-28 Adarsh Babu, Syam Kuzhikkadan Viswanadhan, Hari Prakash Veluswamy
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Performance evaluation of methane hydrate inhibitor (NaCl) integrated polymer gels for extremely low temperature hydraulic fracturing applications Gas Sci. Eng. (IF 5.285) Pub Date : 2024-03-28 Isaac Wilson, Hitendra Patel, Hari Sreenivasan, Shanker Krishna
Gas hydrates (GH) are an abundantly available natural resource that has trapped huge amounts of methane gas through millions of years where its quantity is estimated to be twice that of all other types of hydrocarbon sources put together. The efforts to produce from these reserves resulted in inferior yield compared to conventional counterparts due to the limited conductivity of the sediment and freezing
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Hydraulic fracture initiation and propagation in deep coalbed methane reservoirs considering weak plane: CT scan testing Gas Sci. Eng. (IF 5.285) Pub Date : 2024-03-28 Qingshan Ren, Cun Zhang, Guangjie Wu, Hongwei Zhang, Sen Gao, Zhuang Sun, Yirui Gao
Hydraulic fracturing technology in coal reservoirs helps increase coalbed methane (CBM) production, and the development of hydraulic fractures (HFs) is influenced by in situ stress and original fractures. Therefore, in this study, triaxial HF tests and computed tomography (CT) were used to determine HF initiation and propagation in coal, considering weak structural planes and in situ stress. The experimental
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Optimizing natural gas pipeline risk assessment using hybrid fuzzy bayesian networks and expert elicitation for effective decision-making strategies Gas Sci. Eng. (IF 5.285) Pub Date : 2024-03-28 Yasir Mahmood, Jessica Chen, Nita Yodo, Ying Huang
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A data-driven strategy for pre-fracturing design of pump rate in deep shale gas fracturing Gas Sci. Eng. (IF 5.285) Pub Date : 2024-03-27 Lei Hou, Jianhua Ren, Lei Zhang, Xiaobing Bian, Hai Sun, Yiyan Cheng, Wendong Wang
The deep shale formation (>3500 m) reserves rich oil and gas resources but is difficult to exploit due to the high risk and low efficiency of hydraulic fracturing, for instance, the high level of wellhead pressures (∼100 MPa) and difficulties in proppant injection. The sand screen-out occurs frequently in deep shale fracturing, during which the pump schedule is usually designed referring to neighbor
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WITHDRAWN: Corrigendum to ‘Permeability enhancement of coal-bearing propped fractures using blockage removal agent treatments in coalbed methane reservoirs’ [Gas Science and Engineering 124 (2024) 205259] Gas Sci. Eng. (IF 5.285) Pub Date : 2024-03-26 Xiaonan Sun, Shengyong Hu, Xi Wu, Zhaoying Chen, Yulong Zhang, Xitu Zhang, Jingjing Zhang
This article has been withdrawn at the request of the author(s) and/or editor. The Publisher apologizes for any inconvenience this may cause.
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Altering shale permeability by cold shock Gas Sci. Eng. (IF 5.285) Pub Date : 2024-03-25 B. Aruah, A. Sakhaee-Pour, D.G. Hatzignatiou, F.N. Sadooni, H.A. Al-Kuwari
The matrix permeability of shale is on the order of nanodarcy (nD), and hydrocarbon recovery from it is economical only after hydraulic fracturing. Another fracturing technique, which is often overlooked, is cryogenic fracturing. This study determines the effects of cold shock on shale permeability by focusing on the sub-100-nm pore throats that control access to a significant fraction of the pore
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Improved saturation-pressure relationship and multiphase pseudo-pressure calculations for retrograde gas reservoir production under boundary-dominated flow Gas Sci. Eng. (IF 5.285) Pub Date : 2024-03-25 Kien Tran, Bright Odike, Jonathan Garcez, Luis F. Ayala H
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The role of thermal cycling in micro-cracking development and flow alteration: Advanced insights from CT and lab studies Gas Sci. Eng. (IF 5.285) Pub Date : 2024-03-24 R.D.G. Fiona Harshini, Ranjith Pathegama Gamage, W.G. Pabasara Kumari
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Adsorption mechanism study of sour natural gas and sulfur in high-sulfur carbonate rock gas reservoirs Gas Sci. Eng. (IF 5.285) Pub Date : 2024-03-24 Chaoping Mo, Guangdong Zhang, Yong Tang, Zexuan Chen
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Water content in CO2–CH4 mixtures: New saturation setup and measurements using a quartz-crystal microbalance. Gas Sci. Eng. (IF 5.285) Pub Date : 2024-03-23 Thales Cainã dos Santos Barbalho, Larissa F. Torres, Frederico Wanderley Tavares, Papa Matar Ndiaye
This study presents experimental data on water content in CO, methane, and their mixtures. A new saturation process was developed using a PVT cell connected to a variable-volume cylinder filled with deionized water. Dry gas with a known composition was injected into the cylinder, and the temperature and pressure conditions were adjusted accordingly. The water content of the saturated gas was then analyzed
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Investigating the influence of Joule-Thomson cooling on hydrate reformation near the wellbore Gas Sci. Eng. (IF 5.285) Pub Date : 2024-03-23 Bing Li, Youhong Sun, Shuhui Jiang, Yifeng Shen, Yun Qi, Guobiao Zhang
Hydrate reformation, caused by the Joule-Thomson effect (JTE) during depressurization, poses a major obstacle to efficient gas production. This study examines the impact of the JTE on hydrate reformation near the wellbore during depressurization, focusing on the influences of gas-to-water ratio, depressurization range, and permeability. The results indicate that JTE significantly contributes to a gradual
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CO2 capture through gas hydrate formation in the presence of polyethyleneimine-surface-grafted clay Gas Sci. Eng. (IF 5.285) Pub Date : 2024-03-21 Mahsa Jafari Khamirani, Mohsen Mohammadi, Mohammad Dinari, Mohammad Reza Ehsani, Mohammad Shahbazian, Hamid Ganji
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Risk assessment on the impact of Non-Darcy flow on unconventional well performance. Gas Sci. Eng. (IF 5.285) Pub Date : 2024-03-20 Harun Ates, Shannon L. Eichmann, Ravimadhav Vaidya, Anuj Gupta, Rabah Mesdour
Nano-pores in unconventional reservoirs can cause deviations from Darcy's law where permeability becomes a strong function of pore size and pore pressure. As pores become smaller, the interaction of gas molecules with the pore walls becomes increasingly dominant compared to interactions between gas molecules. This increases gas mobility leading permeabilities measured in the lab not to be accurate
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Simulation of CO2 dissolution reactions in saline aquifers using lattice Boltzmann method Gas Sci. Eng. (IF 5.285) Pub Date : 2024-03-19 Qiuheng Xie, Wendong Wang, Sahar Bakhshian, Han Wang, Xincheng Guo, Yuliang Su
CO dissolution reactions in saline aquifers during geologic carbon sequestration (GCS) involve multiple physicochemical processes and pose a challenge for both experimental and numerical techniques to capture reactive transport features and complex porous structures. Benefited from advanced models in the lattice Boltzmann (LB) community, namely, multiphase flow LB model and multicomponent transport
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Decoding wettability in coal-water-CO2 system for enhanced sequestration security Gas Sci. Eng. (IF 5.285) Pub Date : 2024-03-19 Chao Cui, Yanbin Yao, Dameng Liu, Xiaoxiao Sun
The injection of CO into deep unminable coal seam is a most promising carbon storage method that can simultaneously achieve the dual objectives of mitigating CO emission and enhancing coalbed methane recovery. In this context, the wettability of the coal-water-CO system plays an important role in the CO injection rate, storage capacity, and sequestration security. However, the factors affecting wettability
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Experimental study on the impact of effective stress and cyclic loading on permeability of methane hydrate clayey sediments Gas Sci. Eng. (IF 5.285) Pub Date : 2024-03-18 Yanghui Li, Zhaosheng Wei, Kai Zhang, Lei Wang, Shihui Ma, Zaixing Liu, Zhenkun Zhao, Peng Wu, Zhaoran Wu
Permeability evolution directly determine gas production and its efficiency of gas hydrates in the South China Sea. Due to existence of submarine overlying rocks and change of soil internal mechanics during the hydrate exploitation, permeability evolution is significantly affected. Therefore, in this paper, influence of effective stress on the porosity and permeability of sediment with different hydrate
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SPH numerical simulation of SC-CO2 directional fracturing and emulsion explosives for rock breaking Gas Sci. Eng. (IF 5.285) Pub Date : 2024-03-17 Bin Zhu, Nan Jiang, Yingkang Yao, Xuedong Luo
SC-CO (Supercritical carbon dioxide) directional fracturing is a promising alternative to explosive blasting in complex environments. This study aims to establish an equivalent method for directional fracturing using traditional explosives, promoting broader adoption of this technology. We conduct a comparative experiment analyzing explosive and SC-CO rock breaking, developing the SPH (Smoothed Particle
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Classification of natural gas hydrate resources: Review, application and prospect Gas Sci. Eng. (IF 5.285) Pub Date : 2024-03-14 Na Wei, Jun Pei, Haitao Li, Shouwei Zhou, Jinzhou Zhao, Bjørn Kvamme, Richard Banks Coffin, Liehui Zhang, Yao Zhang, Jin Xue
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Control of fracture toughness of kerogen on artificially-matured shale samples: An energy-based nanoindentation analysis Gas Sci. Eng. (IF 5.285) Pub Date : 2024-03-12 Pengyu Zhang, Dongxiao Zhang, Junliang Zhao
Understanding controls on mechanical properties of organic-rich shale is essential in exploration and successful production from hydrocarbon reservoirs. In previous works, most researchers have focused on the influence of thermal maturity and organic type on elastic and viscoelastic properties of organic matter. However, fracture toughness, an important parameter in engineering design, has been less
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Numerical investigation of gas emission and extraction under the action of coal-oxygen recombination in longwall gobs Gas Sci. Eng. (IF 5.285) Pub Date : 2024-03-12 Fengjie Zhang, Wei Liu, Yueping Qin, Dongyang Han, Mingyan Guo, Xiangyu Chu
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WITHDRAWN: A Critical Review on Compressed Air Energy Storage in Underground Geological Media: Advances and Future Outlook Gas Sci. Eng. (IF 5.285) Pub Date : 2024-03-11 Grant Charles Mwakipunda, Melckzedeck Michael Mgimba, Mbega Ramadhani Ngata, Mbula Ngoy Nadege, Edwin E. Nyakilla, Long Yu
This article has been withdrawn at the request of the author(s) and/or editor. The Publisher apologizes for any inconvenience this may cause.
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A dual-reciprocity boundary element method based transient seepage model with nonlinear distributed point source dual-porosity gas reservoir Gas Sci. Eng. (IF 5.285) Pub Date : 2024-03-11 Qianchen Cui, Yulong Zhao, Bin Zhu, Boning Zhang, Haoran Hu
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Predicting carbonate rock dissolution using multi-scale residual neural networks with prior knowledge Gas Sci. Eng. (IF 5.285) Pub Date : 2024-03-10 Yongfei Yang, Chao Liang, Fugui Liu, Yingwen Li, Lei Zhang, Hai Sun, Junjie Zhong, Kai Zhang, Jun Yao
The factors that affect carbonate dissolution are complex, and it is crucial to acquire efficient and accurate knowledge of carbonate dissolution characteristics for CO capture and storage (CCS) projects. In current research, the most precise outcomes can be achieved through experimental or simulation techniques, but they are frequently computationally demanding and time-consuming. Data-driven machine
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Experimental investigation of microscale mechanical alterations in shale induced by fracturing fluid contact Gas Sci. Eng. (IF 5.285) Pub Date : 2024-03-08 Hai Huang, Wentong Zhang, Huaqiang Shi, Jun Ni, Li Ding, Bing Yang, Yong Zheng, Xinru Li
Understanding the changes in the mechanical properties of shale exposed to fracturing fluids is crucial for optimizing parameters in hydraulic fracturing. However, the dynamic alterations in mechanical properties still need to be disclosed due to the high heterogeneity of shale, particularly at the microscale. This paper aims to in-situ unravel the microscale changes in the dynamic mechanical properties
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Wellbore instability in naturally fractured formations: Experimental study and 3D numerical investigation Gas Sci. Eng. (IF 5.285) Pub Date : 2024-03-07 Xiaorong Li, Henglin Yang, Yaoran Wei, Yongcun Feng, Hao Yang, Wei Yan, Li Fu
Wellbore instability due to natural fractures is a significant issue impeding drilling operations in shale formations. However, most of the existing literature on wellbore stability analysis focuses on the coupled effects of fluid flow and deformation, and the impact of three-dimensional natural fracture characteristics on wellbore instability is not yet closely examined. This paper carried out a series
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Permeability enhancement of coal-bearing propped fractures using blockage removal agent treatments in coalbed methane reservoirs Gas Sci. Eng. (IF 5.285) Pub Date : 2024-03-07 Xiaonan Sun, Shengyong Hu, Xi Wu, Zhaoying Chen, Yulong Zhang, Xitu Zhang, Jingjing Zhang
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The pore-structure characteristics of foraminiferal shells and their relations with natural gas hydrate formation in the marine sediments Gas Sci. Eng. (IF 5.285) Pub Date : 2024-03-07 Yongchao Zhang, Lele Liu, Jing Li, Qiang Chen, Chengfeng Li, Jianye Sun, Changling Liu
Many marine hydrate reservoirs exhibit significant foraminifera abundance. These foraminifera alter the original properties of the sediments, potentially affecting the formation and accumulation of hydrates. This present study analyzed the pore-structure characteristics of foraminifera-containing sediments from the South China Sea and their influences on the hydrate formation process by using microscopic
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A new process for high-efficiency crude helium extraction and purification from natural gas Gas Sci. Eng. (IF 5.285) Pub Date : 2024-03-07 Xia Wu, Pingyang Jia, Wenlong Jia, Changjun Li
Helium is a precious gas that is widely used in various industrial fields. It is mainly extracted from natural gas reservoirs. However, the volume fraction of helium in natural gas is usually lower than 0.3%, which makes the extraction process complicated and expensive. Current methods of extracting helium from natural gas have some problems, such as complicated processes, high energy consumption and
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A high-precision experimental measurement system and method for the parahydrogen concentration and the Ortho-Para hydrogen catalyst's catalytic performance Gas Sci. Eng. (IF 5.285) Pub Date : 2024-03-06 Han Zhou, Zhengyu Li, Qi Wu, Linghui Gong
An experimental system that combines the measurement of parahydrogen concentration with the assessment of ortho-para hydrogen catalyst's catalytic performance was created for this investigation. The concentration of parahydrogen was detected by a thermal conductivity detector integrated into the gas chromatograph. The catalyst sample and the generator of standard gas were integrated into one experimental
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Effect of initial pore water content and salinity on the resistivity of methane hydrate-bearing fine sediments Gas Sci. Eng. (IF 5.285) Pub Date : 2024-03-06 Jinan Guan, Wenchao Bo, Shujia Wang, Yian Liang, Dongliang Li, Lihua Wan, Deqing Liang
Methane hydrates are widely distributed in the soft silty-clayey soils of continental margin sediments. The resistivity method is generally used to detect their distribution state and monitor their kinetic reaction process. However, there are some major details to be elaborated on as to the occurrence state and the evolution of key characteristic parameters. Based on the kinetic reaction experiment
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Monitoring fluid migration in a CO2 storage reservoir by distributed fiber optic strain sensing: A laboratory study Gas Sci. Eng. (IF 5.285) Pub Date : 2024-03-05 Jintao Xu, Chunlai Li, Menglan Shi, Xin Wang, Lanlan Jiang, Mingjun Yang, Yongchen Song
To ensure the safety of carbon dioxide (CO) geological storage, it is important to effectively monitor the pore pressure, reservoir deformation and fluid plume migration, which poses new challenges to monitoring techniques and tools. In this paper, an innovative monitoring method is presented based on distributed fiber optic strain sensing (DFOSS) to detect the strain response distribution induced
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High-precision monitoring and point location optimization method of natural gas micro-leakage in the well site of salt cavern gas storage Gas Sci. Eng. (IF 5.285) Pub Date : 2024-03-03 Xianjian Zou Prof., Tongtao Wang, Jiasong Chen, Youqiang Liao, Hao Hu, Huan Song, Chunhe Yang
The operation equipment in the well site of salt cavern gas storage is complicated. The potential leakage sources, such as wellhead, valve group and pipelines, are widely distributed, so the probability of micro-leakage events in the well site is very large under the long-term gas injection and production conditions. Aiming at the characteristics of well site layout and the existing problems of present
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Novel material to enhance the integrity of CCUS cement sheath: Exploration and application of calcium aluminate cement Gas Sci. Eng. (IF 5.285) Pub Date : 2024-03-03 Peng Gong, Huacai Fu, Dan He, Yuanpeng Wu, Kaiyuan Mei, Chunmei Zhang, Xin He, Tao Liu, Shangdong Li, Xiaowei Cheng
Carbon dioxide (CO) emissions are being reduced using the technique known as CCUS (Carbon Capture, Utilization, and Storage). At present, cementing cement paste based on ordinary silicate cement (OPC) and compounded with CO corrosion-resistant materials are often used in CCUS wells. CAC cement is characterised by low alkaline hydration content and its study in CCUS wells has rarely been reported. Therefore
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Research on coal crushing behavior under supercritical CO2 transient high-pressure fracturing Gas Sci. Eng. (IF 5.285) Pub Date : 2024-03-01 Yunzhuo Li, Huaijun Ji, Shaobin Hu, Xu Liu, Chenglong Zhang, Chu Han
CO fracturing enhances gas permeability by creating a complex network of fractures in coal seams. Crushing serves as the foundation of fracture development, and studying the coal crushing behavior under supercritical CO transient high-pressure fracturing is of great significance to understand fracture evolution and guide precise fracturing. This study utilized a self-built experimental platform for
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Experimental investigation of wellbore integrity during geological carbon sequestration: Thermal- and pressure-cycling experiments Gas Sci. Eng. (IF 5.285) Pub Date : 2024-02-29 Taofik H. Nassan, Martin Kirch, Carsten Freese, Hakan Alkan, Dirk Baganz, Mohd Amro
The long-term safety and integrity of CO storage in geological formations requires understanding of the interactions along the injection well between CO and casing, cement, and rock, which may lead to potential leakage pathways and compromise the storage security.
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Recent developments in gas separation membranes enhancing the performance of oxygen and nitrogen separation: A comprehensive review Gas Sci. Eng. (IF 5.285) Pub Date : 2024-02-28 Randeep Singh, Babul Prasad, Young-Ho Ahn
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A hybrid numerical model for coupled hydro-mechanical analysis during CO2 injection into heterogeneous unconventional reservoirs Gas Sci. Eng. (IF 5.285) Pub Date : 2024-02-25 Min Chen, Jianhua Geng, Luanxiao Zhao
This paper presents a hybrid numerical model for simulating compressible multiphase multicomponent transport in deformable, heterogeneous unconventional reservoirs. A fully implicit theoretical framework for coupled hydromechanical behaviour is established, in which the flash calculation is avoided. To preserve the local mass conversation, an element based finite volume method is used to spatially
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Estimation on strength parameters of sediments with hydrate layered distribution based on triaxial shearing tests Gas Sci. Eng. (IF 5.285) Pub Date : 2024-02-24 Lin Dong, Nengyou Wu, Fang Liu, Zhiwen Sun, Minhui Qi, Gaowei Hu, Yanlong Li
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Impact of CO2 hydrates on injectivity during CO2 storage in depleted gas fields: A literature review Gas Sci. Eng. (IF 5.285) Pub Date : 2024-02-24 Mahnaz Aghajanloo, Lifei Yan, Steffen Berg, Denis Voskov, Rouhi Farajzadeh
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Hybrid modeling approach for natural gas desulfurization process: Coupling mechanism and data modeling via compact variable identification Gas Sci. Eng. (IF 5.285) Pub Date : 2024-02-23 Wei Jiang, Zhuoxiang Li, Xi Kang, Lei Luo, Yinjie Zhou, Qisong Liu, Ke Liu, Xu Ji, Ge He
The accurate process modelling in natural gas industry is beneficial for enterprises to increase potential profit and realize sustainable production. The integration of industrial data and first-principles computation is effective in hybrid process modelling. However, how to enhance their accuracy, robustness, and interpretability remains a challenge. Herein, a general framework integrating artificial
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Assessing the effect of intermediate principal geostress on the caprock integrity for underground gas storage Gas Sci. Eng. (IF 5.285) Pub Date : 2024-02-22 Zhechao Wang, Xianxian Lyu, Weichuan Shi, Xia-Ting Feng, Liping Qiao, Rui Kong
It is critical to evaluate the integrity of caprock for underground gas storage under 3D anisotropic geostress conditions to improve the operation performance. The constitutive model, named as Triple-Mean-Normal-Stress model (TMNS), is embedded into a FEM code to investigate the integrity of caprock for the storage. The results obtained using Mohr-Coulomb, Mogi-Coulomb and TMNS models were compared
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Revealing the correlation between the performance of silica-based DAC adsorbents and their pore natures Gas Sci. Eng. (IF 5.285) Pub Date : 2024-02-22 Yiran Zhang, Shu Zhao, Linjia Li, Jiaqi Feng, Wei Qiu, Zhidong Wei, Xinling Li, Zhen Huang, He Lin
Direct air capture (DAC) technology is a potential carbon negative process, which can effectively reduce the emission of carbon dioxide (CO) in the atmosphere. Amine-functionalized porous materials are promising because of their high ratio of accessible amino groups and fast adsorption/desorption kinetics. This work reveals the correlation between the specific surface area, pore radius, and pore volume
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Confinement effect in nanopores of shale and coal reservoirs: A review on experimental characterization methods Gas Sci. Eng. (IF 5.285) Pub Date : 2024-02-22 Minghan Li, Mengdi Sun, Erfan Mohammadian, Yeping Ji, Tomasz P. Blach, Mehdi Ostadhassan, Jianjiang Wen, Chunming Wu, Zhejun Pan
The confinement effect in nanopores significantly impacts the phase behavior of fluids in unconventional reservoirs and controls the occurrence and transport of fluids. As a result, the phase behavior, thermodynamic properties and phase equilibrium of bulk gases, in particular, could significantly change due to the surface-molecules interactions. On the one hand, due to the heterogeneous and anisotropic
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Investigation on damage-permeability model of dual-porosity coal under thermal-mechanical coupling effect Gas Sci. Eng. (IF 5.285) Pub Date : 2024-02-22 Pingping Ye, Bobo Li, Chonghong Ren, Haosheng Song, Jiale Fu, Xuehai Wu
Understanding the permeability characteristics of coal under mining disturbance is crucial for ensuring coal mine safety and efficient gas extraction. Coal is a dual porosity medium consisting of matrix and fracture, and there are some differences in mechanics and permeability between matrix pores and fracture. However, research on the damage and gas seepage characteristics of dual-porosity coal is