Article
Energy & Fuels
Muhammad Hammad Rasool, Maqsood Ahmad, Numair Ahmed Siddiqui, Aisha Zahid Junejo
Summary: Designing an effective drilling mud is crucial for the drilling process. This study investigates the use of natural deep eutectic solvents (NADES) as a drilling mud additive and demonstrates its ability to improve rheological properties, inhibit hydrate formation, and suppress shale swelling. The NADES-based mud shows promising potential in enhancing drilling mud performance and reducing environmental impact compared to traditional additives.
Article
Chemistry, Physical
Moumita Maiti, Ravi Ranjan, Ekta Chaturvedi, Ajoy Kumar Bhaumik, Ajay Mandal
Summary: In this study, a specially designed nanoparticle-enhanced water-based drilling fluid was used to improve drilling efficiency in gas hydrate reservoirs, showing significant inhibition effects on hydrate formation mainly due to the enhanced performance of polymers and nanoparticles in the water-based drilling fluid.
JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY
(2021)
Article
Energy & Fuels
Moumita Maiti, Ajoy Kumar Bhaumik, Ajay Mandal
Summary: This study investigates the influence of low temperature and high pressure on polymer and nanoparticle-based drilling fluids, showing significant improvement in rheological properties and fluid loss control. The intermolecular interaction within the fluid structure in the presence of nanoparticles enhances the viscoelastic properties, leading to reduced plastic viscosity, yield point, and apparent viscosity of the drilling fluid. Additionally, the experimentation reveals minimal effects of pressure and temperature on the rheology of samples, making them suitable for applications in hydrate and deepwater drilling.
Article
Materials Science, Paper & Wood
Xinliang Li, Kai Wang, Liyuan Xian, Yaoli Su
Summary: This study investigated the effectiveness of carboxylated cellulose nanocrystals (CNCs) as environmentally friendly additives for water-based drilling fluids (WBDFs), and found that CNCs showed superior rheological, filtration, and inhibitive properties, as well as good environmental friendliness.
Article
Thermodynamics
Lin Dong, Yizhao Wan, Yanlong Li, Hualin Liao, Changling Liu, Nengyou Wu, Yuri Leonenko
Summary: This study developed a 3-D coupled thermal-hydro-chemical model to investigate the drilling fluid invasion process and dynamic responses of gas hydrate reservoirs. The invasion characteristics mainly depend on drilling fluid pressure and permeability, while temperature affects hydrate dissociation. Fluid-loss velocity increases slowly due to the increase in permeability induced by hydrate dissociation after an initial sharp decrease in invasion.
Article
Energy & Fuels
Yong He, Xuebing Zhou, Lingli Shi, Zhen Long, Jingsheng Lu, Deqing Liang
Summary: This study compared the effects of nano-silica and typical hydrate inhibitors in deep water drilling fluids. The results showed that nano-silica performed well in terms of hydrate nucleation time and could be considered as a potential synergist of hydrate inhibitors.
JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING
(2022)
Article
Geochemistry & Geophysics
Pengcheng Wu, Chengxu Zhong, Zhengtao Li, Zhen Zhang, Zhiyuan Wang, Weian Huang
Summary: The physicochemical mechanism of wellbore instability in complex strata was revealed through experiments and research, leading to the proposal of an enhanced plugging drilling fluid system, which greatly improves its plugging ability and performance in other aspects.
Article
Energy & Fuels
Xian-Bin Huang, Jin-Sheng Sun, Yi Huang, Bang-Chuan Yan, Xiao-Dong Dong, Fan Liu, Ren Wang
Summary: This paper analyzed the application potential of Laponite in high-performance water-based drilling fluids (HPWBFs) and found that it has good shale inhibition and plugging effects, as well as helps to enhance lubrication properties.
Article
Thermodynamics
Xin Zhao, Qi Geng, Zhen Zhang, Zhengsong Qiu, Qingchao Fang, Zhiyuan Wang, Chuanliang Yan, Yongle Ma, Yang Li
Summary: In this study, the use of encapsulated phase change materials (PCMs) to regulate the temperature of drilling fluids and inhibit hydrate decomposition was proposed. The PCM microcapsules were found to effectively reduce the heating/cooling rate and borehole enlargement rate, and were compatible with drilling fluids.
Article
Engineering, Environmental
Mukaila A. Ibrahim, Tawfik A. Saleh
Summary: The newly designed AC-D/PVP composite material shows potential value in efficiently inhibiting shale hydration in drilling operations, maintaining stability at high temperatures, and effectively inhibiting shale swelling.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Energy & Fuels
Zhen Li, Erik Spangenberg, Judith M. Schicks, Thomas Kempka
Summary: The Mackenzie Delta is a permafrost-bearing region in the Canadian Arctic with high sub-permafrost gas hydrate reserves. The gas hydrates in the region are dominated by thermogenic methane migrated from deep hydrocarbon reservoirs. A numerical model simulation validates the hypothesis that dissolved methane from deeper reservoirs forms the gas hydrate accumulations in the delta. The simulation also reveals the impact of global temperature increase and Arctic Amplification effect on permafrost temperatures.
Editorial Material
Environmental Sciences
Rebecca Finger-Higgens
Summary: Due to rising air temperatures and autumn rains, some Arctic lakes are drying, leading to permafrost thawing and water drainage.
NATURE CLIMATE CHANGE
(2022)
Article
Geosciences, Multidisciplinary
Vasily Bogoyavlensky, Aleksei Kishankov, Aleksei Kazanin, Gennady Kazanin
Summary: This article presents a comprehensive analysis of the causes of intensive gas emission over a large area of the Central Laptev shelf. The study reveals anomalous objects potentially connected with gas saturation and defines the boundary between frozen and thawed sediments for the first time. The connection between gas seeps and deep-seated faults is substantiated, and a potential gas hydrate distribution zone is observed on the continental slope.
MARINE AND PETROLEUM GEOLOGY
(2022)
Article
Energy & Fuels
Hafiz Mudaser Ahmad, Mobeen Murtaza, Afeez Gbadamosi, Muhammad Shahzad Kamal, Syed Muhammad Shakil Hussain, Mohamed Mahmoud, Shirish Patil
Summary: Water-based drilling fluids are extensively used in the oilfield industry for efficient drilling. This study developed a novel drilling formulation by incorporating a magnetic surfactant into the base mud formulation. Various tests were conducted to analyze the performance of the new formulation. The experimental results showed improved thermal stability, altered shear stress, superior shale inhibition, increased clay particle size, reduced clay swelling rate, and affected electrokinetic behavior due to the magnetic surfactant. The findings suggest the potential of magnetic surfactant as an effective additive in water-based drilling fluids.
Article
Thermodynamics
Lin Dong, Nengyou Wu, Yuri Leonenko, Yizhao Wan, Hualin Liao, Gaowei Hu, Yanlong Li
Summary: Evaluation of interactions among multiple physical fields in natural gas hydrate reservoirs is crucial for risk management during drilling fluid invasion. A coupled thermal-hydraulic-mechanical model is established to characterize stress states and invasion-induced deformation, reflecting the effect of borehole shapes and drilling operations. The results reveal that drilling fluid invasion causes stress and strain concentrations around the wellbore, and stress states depend on the borehole shapes and invasion degree. Coupling effects of invasion and phase transition under various stresses can lead to unavoidable deformation and stress changes. Therefore, coupled analysis of geomechanical behaviors is indispensable for risk control in drilling hydrate reservoirs.
Article
Energy & Fuels
Zhengsong Qiu, Jia Li, Hanyi Zhong, Xin Zhao, Weian Huang
Summary: A fully coupled poroelastic model was established to investigate the effect of fracture interference in the wellbore strengthening process, and sensitivity analysis was conducted by capturing the change of different parameters. The results showed that the distortion of the fracture trajectory and the closure extent of fracture surface can be controlled more easily by adjusting the injection rate and spacing.
ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS
(2021)
Article
Engineering, Petroleum
Xin Zhao, Zhengsong Qiu, Jian Gao, Xiaoxia Ren, Jia Li, Weian Huang
Summary: By selecting different types of nanoparticle suspensions, the migration of quartz and kaolinite fines in quartz sand porous medium can be effectively controlled, with Al2O3 showing the best performance. Through the establishment of a mathematical model and observation using atomic force microscopy, the microscopic mechanism of nanoparticle control over fines migration was revealed.
Article
Chemistry, Multidisciplinary
Guowei Zhou, Zhengsong Qiu, Hanyi Zhong, Xin Zhao, Xiangzheng Kong
Summary: The study investigates the use of wild jujube pit powder (WJPP) to enhance the performance of drilling fluid, analyzing the properties of WJPP and the drilling fluid system containing WJPP through various methods. WJPP can increase viscosity, reduce filtration loss, enhance shear thinning, and thixotropy of the drilling fluid system.
Article
Chemistry, Multidisciplinary
Yubin Zhang, Zhengsong Qiu, Jiaxing Mu, Yongle Ma, Xin Zhao, Hanyi Zhong, Weian Huang, Pengfei Guo
Summary: The paper introduced a method using phase-change microcapsules to inhibit the decomposition of reservoir hydrates by intelligently controlling the drilling fluid temperature. The microcapsules, with an encapsulation efficiency of 62.6%, showed good thermal conductivity and reliability, as well as compatibility with drilling fluids.
Article
Engineering, Environmental
Yubin Zhang, Zhengsong Qiu, Hanyi Zhong, Jiaxing Mu, Yongle Ma, Xin Zhao, Weian Huang
Summary: The study focused on synthesizing modified n-alkanes and incorporating nano-Cu to enhance thermal conductivity, resulting in a composite phase change material (PCM) with improved hydrate inhibition properties. Structural characterization of the PCM was conducted using various analytical techniques, demonstrating its potential for intelligent temperature control and reduced risk in drilling hydrate reservoirs.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Energy & Fuels
Jia Li, Zhengsong Qiu, Hanyi Zhong, Xin Zhao, Zhengkai Liu, Weian Huang
Summary: The accumulation of mud cake can slow down the rise of pore pressure and broaden the safe mud weight window by increasing the effective stress of compression. The addition of Xanthan can enhance the pressure isolation effect of mud cake by improving the coalescence stability of fine-grained particles and plugging the pore with hydration membrane. The viscoelastic granular plugging material has the best sealing efficiency with the deformation property.
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2022)
Article
Thermodynamics
Xin Zhao, Qingchao Fang, Zhengsong Qiu, Shiyou Mi, Zhiyuan Wang, Qi Geng, Yubin Zhang
Summary: The research found that in oil-free gas-water systems, traditional anti-agglomerants had no effect on agglomeration, while kinetic inhibitors could slow down hydrate formation but not inhibit agglomeration. An amphiphilic amide compound DCA effectively prevented hydrate agglomeration and blockage by reducing the cohesion force between hydrate particles and changing the surface characteristics of the particles, preventing liquid bridges from forming and inhibiting adhesion and agglomeration.
Article
Engineering, Marine
Qingchao Fang, Xin Zhao, Sunbo Li, Zhengsong Qiu, Zhiyuan Wang, Qi Geng
Summary: In this study, the effect of Tween and Span series surfactants with different HLB values on the cohesive force between cyclopentane hydrate particles was investigated. The results showed that the cohesive force decreased with decreasing HLB for both Tween and Span surfactants. The cohesive force increased with increasing concentration of Tween surfactants, while it decreased with increasing concentration of Span surfactants. The mechanism behind these effects was attributed to the aggregation of low-HLB surfactant molecules at the oil-water or gas-water interface, which increased the surface roughness and hydrophobicity of the hydrate particles, thus inhibiting the formation of liquid bridges between particles.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2022)
Article
Chemistry, Physical
Shi Yuan, Xin Zhao, Rongchao Cheng, Yuanzhi Qu, Jiawen Xue, Yiang Li, Jinsheng Sun, Jiafang Xu
Summary: This study used molecular dynamics simulations to investigate the adsorption mechanism of the clay-swelling inhibitor NETS on the surface of montmorillonite. The results showed that the adsorption ability of NETS on the montmorillonite surface was significantly influenced by the molecular conformation and temperature. Increasing temperature weakened the interaction between NETS and montmorillonite, resulting in reduced adsorption stability.
Article
Thermodynamics
Xin Zhao, Qi Geng, Zhen Zhang, Zhengsong Qiu, Qingchao Fang, Zhiyuan Wang, Chuanliang Yan, Yongle Ma, Yang Li
Summary: In this study, the use of encapsulated phase change materials (PCMs) to regulate the temperature of drilling fluids and inhibit hydrate decomposition was proposed. The PCM microcapsules were found to effectively reduce the heating/cooling rate and borehole enlargement rate, and were compatible with drilling fluids.
Article
Energy & Fuels
Di Wang, Zhengsong Qiu, Hanyi Zhong, Xin Zhao, Jian Su, Lijun Fan
Summary: This study established a method for measuring the specific surface area of barite in drilling fluid based on low field nuclear magnetic resonance (NMR) relaxation to investigate its occurrence state. The results obtained through particle size calculation and low field NMR showed that the specific surface area can reflect the aggregation state of barite in liquid phase. By conducting organic carbon adsorption and rheological tests, the adsorption law of barite to different drilling fluid additives was obtained. This research can solve the problem of additive addition in drilling fluid and optimize its performance.
PETROLEUM SCIENCE AND TECHNOLOGY
(2022)
Review
Energy & Fuels
Abdolreza Farhadian, Azam Shadloo, Xin Zhao, Roman S. Pavelyev, Kiana Peyvandi, Zhengsong Qiu, Mikhail A. Varfolomeev
Summary: Gas hydrate formation is a serious challenge for the oil and gas industry, causing safety, environmental, and economic problems. Current kinetic hydrate inhibitors (KHIs) are not biodegradable, cheap, and eco-friendly. This report reviews efforts to develop KHIs with higher biodegradability and emphasizes the need for cheaper and greener options.
Article
Polymer Science
Qingchao Fang, Xin Zhao, Hao Sun, Zhiwei Wang, Zhengsong Qiu, Kai Shan, Xiaoxia Ren
Summary: This study analyzed the characteristics and formation-damage mechanism of the carbonate reservoir formation in the MS Oilfield in the Middle East, and proposed technical measures for preventing formation damage. The results showed that the drill-in fluid can mitigate formation damage without the treatment of gel breakers, improving operating efficiency and safety.
