-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
The emission and migration of gas in the longwall gobs are closely linked to the temperature field formed by the oxidation and exothermic behavior of coal. This work conducted gas adsorption and desorption experiments on coal particles and obtained the relationship between gas desorption rate and temperature. Additionally, the coupling relationship between multi-physical fields, including the air flow
-
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.
-
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
As a result of advancements in gas reservoir development technologies and a deeper understanding of seepage theory, numerous nonlinear seepage problems have emerged. Consequently, conventional analytical solution models are no longer applicable. Moreover, existing semi-analytical and numerical solution models suffer from issues like high computational complexity and limited flexibility, significantly
-
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
-
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
-
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
-
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
The generation and transport of coal powder has caused great harm to coal reservoir channeling conductivity, affecting the capacity of coalbed methane wells, causing the failure of engineering equipment and great distress to production, while current unblocking methods have many shortcomings. Dispersants, foam stabilizers, and inorganic salt electrolytes were selected in this study as the main components
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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
-
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.
-
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
Membrane-based separation of oxygen (O) and nitrogen (N) has emerged as an essential technological advancement with far-reaching implications across a multitude of industries. This comprehensive review explores the dynamic landscape of progress and challenges associated with this innovative approach to gas separation. The introductory section discusses deeply the rationale for employing membranes in
-
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
-
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
Proper models for predicting strength parameters of reservoirs are vital to the numerical simulation and risk analysis during gas hydrate exploration. However, unlike homogeneous hydrate reservoirs, strength parameters of interlayered sediments depend on hydrate distribution modes, which remains unclear. Herein, a series of triaxial shearing tests on sediments with hydrate layered distribution are
-
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
Carbon dioxide capture and storage in subsurface geological formations is a potential solution to limit anthropogenic CO emissions and combat global warming. Depleted gas fields offer significant CO storage volumes; however, injection of CO into these reservoirs poses some potential challenges for the injectivity, containment and well/facility integrity due to low temperatures caused by isenthalpic
-
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
-
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
-
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
-
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
-
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
-
Gas transport model and numerical solution in roof rock based on the theory of free gas diffusion Gas Sci. Eng. (IF 5.285) Pub Date : 2024-02-20 Yueping Qin, Jianing Fan, Hao Xu, Yaowen Li, Fan Wu, Wenhao Li
Accurately identifying the source of coalbed methane is of great practical significance in preventing gas concentration overruns and improving extraction efficiency. At present, it is widely believed that underground gas mainly comes from coal desorption, and the mechanism of gas flow inside the coal seam is explored in depth, while the gas released inside the rock is often neglected, and there is
-
Geochemical effects of carbonated water on reservoir and caprock minerals for carbon capture and storage Gas Sci. Eng. (IF 5.285) Pub Date : 2024-02-20 Mahmood Fani, Skule Strand, Tina Puntervold, Aleksandr Mamonov, Iván Darío Piñerez Torrijos, Md Ashraful Islam Khan
CO can be safely stored in geological formations, such as deep saline aquifers and depleted oil or gas reservoirs. However, knowledge about caprock and storing bed integrity is essential for safe storage in sedimentary porous rocks. In this study typical carbonate and sandstone minerals present in the reservoir and caprocks have been exposed to carbonated water above supercritical conditions of CO
-
Investigation of decomposition and partial oxidation of mixed acid gas and methane for syngas production Gas Sci. Eng. (IF 5.285) Pub Date : 2024-02-17 Songling Guo, Fan Zhou, Xun Tao, Wei Zeng, Yuying Wang, Yunfei Gao, Lu Ding, Fuchen Wang
Reaction processes of decomposition and partial oxidation of a mixture of acid gas (HS and CO) and methane (CH) could enable the efficient production of valuable syngas resource (H and CO). In this work, the decomposition and partial oxidation of HS–CH–CO system was experimentally studied in a tube furnace. Effects of temperature, CH and CO addition, equivalence ratio and residence time were studied
-
Investigation of permeability and growth habits in hydrate-bearing porous media considering pore irregularity Gas Sci. Eng. (IF 5.285) Pub Date : 2024-02-15 Zelin Xu, Gang Li, Xiaosen Li, Xinwang Li, Tao Lv, Pengfei Shen
The permeability of hydrate-bearing sediments critically affects gas production rate and efficiency. Reported permeability from artificial and natural cores is widely scattered owing to porous media particle size, porosity and hydrate saturation (), but pore irregularity was ignored. Therefore, analyzing the effects of pore irregularity on growth habits and permeability is crucial. In this study, we
-
Effects of inertia on fluid flow in fractured rock masses: A comprehensive review Gas Sci. Eng. (IF 5.285) Pub Date : 2024-02-15 Heraji Hansika, M.S.A. Perera, S.K. Matthai
Fluid flow in fractured rock masses is important for many engineering applications. As fluid moves through the fractures, non-negligible pressure losses occur even at a moderate flow rate where the flow velocity changes. Centrifugal forces arise where fluid flows around bends such as at fracture intersections. These velocity changes consume energy, compromising the linear relationship between flow
-
Preventing clogging of debrining tubing in a gas storage salt cavern during construction Gas Sci. Eng. (IF 5.285) Pub Date : 2024-02-14 Tingting Jiang, Dongling Cao, Dongzhou Xie, Youqiang Liao, Tao He, Duocai Wang
Insoluble sediments may block the debrining inner tubing (DIT) in a salt cavern during construction. Most previous studies of this problem have simplified the sediment particles to spheres, which leads to significant errors in the predicted moving critical velocity of these sediment particles. In this paper, the morphological and hydraulic characteristics of sediments are quantitatively analyzed by
-
Natural gas hydrate dissolution accelerated by water flowing: Kinetics and implications Gas Sci. Eng. (IF 5.285) Pub Date : 2024-02-10 Changhong Yu, Wantian Zhou, Baojiang Sun, Hanbing Bian, Litao Chen
Natural gas hydrate (NGH) dissolution may play a critical role in geological evolution and methane-induced climate change. However, the characteristics of hydrate dissolution in sediments remain poorly constrained. In this work, methane hydrate dissolution kinetics was quantitatively investigated by continuously passing methane-free water through hydrate-bearing sediments (HBS). The results showed
-
Investigation on natural gas leakage and diffusion characteristics based on CFD Gas Sci. Eng. (IF 5.285) Pub Date : 2024-02-10 Liwen Wu, Liang Qiao, Junming Fan, Jiongming Wen, Yi Zhang, Ben Jar
The transportation of hazardous gases such as natural gas and hydrogen through buried pipelines is widely considered the most economically safe method. In recent years, due to the extension of service time and material aging, gas leakage incidents have become more common during transportation, leading to significant hazards such as fires and explosions. This paper aims to study the leakage and diffusion
-
WITHDRAWN: Corrigendum to “Investigation on the kinetics of carbon dioxide hydrate formation using flow loop testing” [J. Nat. Gas Sci. Eng. 49C, December 2023, 2357] Gas Sci. Eng. (IF 5.285) Pub Date : 2024-02-08 Shidong Zhou, Hongyu Yan, Di Su, Seetharaman Navaneetha Kannan, Yuandao Chi
This article has been withdrawn at the request of the author(s) and/or editor. The Publisher apologizes for any inconvenience this may cause.
-
Recent advancements in carbonic anhydrase for CO2 capture: A mini review Gas Sci. Eng. (IF 5.285) Pub Date : 2024-02-08 Peijing Shao, Jiexu Ye, Yao Shen, Shihan Zhang, Jingkai Zhao
In the context of the new development of “carbon peak and carbon neutrality” in the world, the development of carbon capture technology is particularly important. Carbonic anhydrase (CA), renowned for its unique hydration catalytic activity, has garnered increasing attention in carbon capture research due to its exceptional catalytic efficiency and environmental friendliness. CA can enhance CO absorption
-
Techno-economic assessment of retrofitting indirect-heated calcium looping using coal and biomass as fuels into an existing cement plant for CO2 capture Gas Sci. Eng. (IF 5.285) Pub Date : 2024-02-08 Junjun Yin, Chao'en Li, Gabriel Paicu, Shi Su
The indirect-heated calcium carbonate looping (IH-CCL) process is an advanced carbon capture technology. It eliminates the need of an energy-intensive air separation unit that is required in the conventional oxy-fired calcium carbonate looping process, thereby potentially leading to lower energy consumption and cost. The IH-CCL process has not been well studied for application in the existing cement
-
Physics-enhanced machine-learning-based prediction of fluid properties for gas injection – Focus on CO2 injection Gas Sci. Eng. (IF 5.285) Pub Date : 2024-02-02 Kassem Ghorayeb, Kristian Mogensen, Nour El Droubi, Chakib Kada Kloucha, Hussein Mustapha
Gas injection (GI) pressure-volume-temperature (PVT) laboratory data play an important role in evaluating the performance and efficiency of enhanced oil recovery (EOR) processes, including carbon dioxide (CO2) injection. Although typically there is a large conventional PVT laboratory data set corresponding to hydrocarbon reservoirs, GI laboratory studies are relatively scarce. Performing EOR laboratory
-
Assessment of chemical enhancement and energy consumption of natural gas dehydration processes Gas Sci. Eng. (IF 5.285) Pub Date : 2024-01-30 Usama Nour Eldemerdash, Mohamed Abdrabou, Shakinaz Taha El-Sheltawy, Amr Abdelghany
Water vapors are found in high concentrations during natural gas production and processing. Energy consumption is known to be a drawback of the glycol dehydration process. Toxic and greenhouse gas emissions are another drawback from the environmental point of view. This paper served to propose a solution to the two problems together by using an emissions stream from the regenerator distillation tower
-
Experimental study of decompression wave characteristics and steel pipe applicability of supercritical CO2 pipeline Gas Sci. Eng. (IF 5.285) Pub Date : 2023-12-26 Lei Chen, Yanwei Hu, Kai Yang, Xingqing Yan, Shuai Yu, Jianliang Yu, Shaoyun Chen
High-strength pipeline steel is the optimal choice for continuously transporting large amounts of carbon dioxide (CO) in the future Carbon capture, utilization and storage (CCUS) industrial chain, and supercritical CO (S–CO) is the ideal phase state from an emitter to an onshore storage site. In CCUS projects, it is very indispensable to carry out the suitability of high steel-grade pipelines to ensure
-
Establishment and application of propped hydraulic fracture conductivity theoretical model based on fracturing efficiency index Gas Sci. Eng. (IF 5.285) Pub Date : 2023-12-25 Zhiyuan Liu, Haifeng Zhao, Dongchenhao Wang, Pu Yuan, Yalong He
Hydraulic fracturing technology is a key technology for the development of unconventional oil and gas reservoirs, and the conductivity of hydraulic fractures has a great impact on their production. The paper introduces the "fracturing efficiency index" as means of characterising the dynamic relationship between hydraulic fracture expansion and proppant filling. It also suggests a way to figure out
-
Experimental investigation of salt precipitation behavior and its impact on injectivity under variable injection operating conditions Gas Sci. Eng. (IF 5.285) Pub Date : 2023-12-25 Di He, Zhe Wang, Heping Yuan, Mincheng Zhang, Zhaobin Hong, Ruina Xu, Peixue Jiang, Shuixuan Chen
-
Investigation into contributions of fracture geometry characterization and interference to productivity of multi-fractured vertical gas well Gas Sci. Eng. (IF 5.285) Pub Date : 2023-12-24 Jia Deng, Jiujiu He, Lan Zhang, Hongqing Song, Li Gao
Vertically fractured wells have been widely used to develop tight gas reservoirs. Characterizing the geometry of fractures created by hydraulic fracturing is a key factor influencing the productivity of such wells. Appropriately modeling the shapes of actual fractures is thus important for accurately predicting the well productivity. Past research in the area has tended to simplify fractures into straight
-
Modelling underground hydrogen storage: A state-of-the-art review of fundamental approaches and findings Gas Sci. Eng. (IF 5.285) Pub Date : 2023-12-16 Motaz Saeed, Prashant Jadhawar
This review presents a state-of-the-art of geochemical, geomechanical, and hydrodynamic modelling studies in the Underground Hydrogen Storage (UHS) domain. Geochemical modelling assessed the reactivity of hydrogen and res pective fluctuations in hydrogen losses using kinetic reaction rates, rock mineralogy, brine salinity, and the integration of hydrogen redox reactions. Existing geomechanics studies
-
Blasingame production decline curve analysis for fractured tight sand gas wells based on embedded discrete fracture model Gas Sci. Eng. (IF 5.285) Pub Date : 2023-12-14 Xianshan Liu, Shaoyang Geng, Peng Hu, Yao Li, Runhua Zhu, Shudong Liu, Qun Ma, Chengyong Li
Blasingame production decline curve analysis (PDCA) is crucial for extracting natural gas from fractured tight sandstone reservoirs (FTSRs). The natural gas flow in FTSRs is complex due to high-velocity non-Darcy (hvnD) flow, threshold pressure gradient (TPG), and stress sensitivity of reservoirs. These factors pose a challenge in solving nonlinear equations. In this paper, we establish a mathematical
-
Implementing pore size distribution into saturation height function modelling of reservoir rock types: A case study on a carbonate gas reservoir Gas Sci. Eng. (IF 5.285) Pub Date : 2023-12-08 Elham Tohidi, Mahsa Hesan, Amir Azad, Mansour Abbasi, Saeid Sadeghnejad
-
A numerical study of complex fractures propagation path in naturally fractured gas shale: Reorientation, deflection and convergence Gas Sci. Eng. (IF 5.285) Pub Date : 2023-12-03 Xuanhe Tang, Haiyan Zhu, Peng Zhao, Bo Zeng, Meng Zhao, Maurice B. Dusseault, John D. McLennan
Shale gas reservoir is characterized as the naturally fractured formation, which is benefit for complex hydraulic fracture network generation. The propagation path is crucial to determine the reservoir stimulation result, and evaluate the quality of complex hydraulic fracture network. To investigate the propagation path of complex hydraulic fracture in gas shale, the hybrid combined discrete fracture
-
Comparison between downdip and updip groundwater flow on early CO2 migration in dipping storage aquifers Gas Sci. Eng. (IF 5.285) Pub Date : 2023-12-01 Mawda Awag, Eric Mackay, Saeed Ghanbari
The impact of the aquifer dip angle and groundwater flow have been investigated in the field of carbon dioxide (CO) storage efficiency and security. However, no consideration has been given to the significance of the direction of groundwater flow in aquifers on the CO plume migration and the storage performance. In this study, we analyse the effect of the direction of groundwater flow on CO plume migration
-
Gas transport model in pore heterogeneous bedded salt rock: Implications for tightness evaluation of salt cavern gas storage Gas Sci. Eng. (IF 5.285) Pub Date : 2023-11-30 Tongtao Wang, Youqiang Liao, Chunhe Yang, Dongzhou Xie, Wei Chen, Duocai Wang, Wenquan Wang, Chaoyang Zhang, Tao He
To address the gas flow behaviors in bedded salt rock, an apparent permeability model considering Knudsen diffusion, pore surface diffusion, and pore heterogeneity was presented. The evolutions of gas permeability and gas flow behaviors with pressure were hinted by a gas seepage experiment carried out for model verification. The results show that the new apparent permeability model could accurately
-
The throttling characteristics of supercritical carbon dioxide in the flowback process of CO2 fracturing Gas Sci. Eng. (IF 5.285) Pub Date : 2023-11-30 Mingzheng Qiao, Zefeng Jing, Ran Zhou, Cheng Chen, Xupeng Zou, Yong Li, Qian Zou
Carbon dioxide fracturing is used to develop oil and gas resources with low permeability and also achieve partly carbon sequestration. Nevertheless, during the process of fracturing flowback, supercritical CO easily undergoes a throttling phenomenon within narrow channels, leading to a rapid temperature decrease. This causes the formation of dry ice, which subsequently blocks the flowback channel.
-
Thermal behavior of minerals in shale and its influence on evolution of gas-flow channels under thermal shock Gas Sci. Eng. (IF 5.285) Pub Date : 2023-11-29 Changbao Jiang, Ling Xu, Yufei Chen, Wei Liu, Botao Wang, Ping Liu, Bozhi Deng
Thermal shock-induced damage can significantly enhance the connectivity of the rock's fracture network. Thermal Enhanced Recovery (TER) technology holds promising potential for application in shale gas production. Nevertheless, there is still a lack of direct experimental studies focusing on the evolution of shale's gas-flow channels and the mechanism of thermal fracturing in shale under the influence