- Hydraulic Fracturing and Reservoir Analysis
- Reservoir Engineering and Simulation Methods
- Drilling and Well Engineering
- Oil and Gas Production Techniques
- Enhanced Oil Recovery Techniques
- Hydrocarbon exploration and reservoir analysis
- Polymer Surface Interaction Studies
- Marine Biology and Environmental Chemistry
- Microplastics and Plastic Pollution
- Surfactants and Colloidal Systems
- Coal Properties and Utilization
- Engineering Diagnostics and Reliability
- CO2 Sequestration and Geologic Interactions
- Proteins in Food Systems
- Pickering emulsions and particle stabilization
- Fuel Cells and Related Materials
- Geoscience and Mining Technology
- Advanced Sensor Technologies Research
- Advancements in Solid Oxide Fuel Cells
- Hydrogen Storage and Materials
- Nanoparticles: synthesis and applications
- Metaheuristic Optimization Algorithms Research
- Offshore Engineering and Technologies
- Mineral Processing and Grinding
- Customer churn and segmentation
Dong-A University
2011-2025
Abu Dhabi National Oil (United Arab Emirates)
2022
Korea Gas Corporation (South Korea)
2020
Yonsei University
2008-2012
Los Alamos National Laboratory
2011
Hanyang University
2004-2005
Chungnam National University
2004
Korea Research Institute of Standards and Science
2004
Liquid organic hydrogen carrier (LOHC) technology enables the safe, easy, and cost-effective storage transportation of large quantities using inexpensive mass-produced compounds. The LOHC materials play a crucial role in capacity, reaction kinetics, temperature, reversibility. However, development optimization is limited due to for bulk logistics. Herein, we propose molecular engineering approach overcome limitations commercial dibenzyltoluene (DBT)-based systems, considered one most...
Due to the rapid development of shale gas, a system has been established that can utilize considerable amount data using database system. As result, many studies various machine learning techniques were carried out predict productivity gas reservoirs. In this study, comprehensive analysis is performed for method based on data-driven approaches evaluates wells by parameters such as hydraulic fracturing and well completion in Eagle Ford field. Two are used improve performance prediction model...
Oil-in-water emulsions are used in a variety of applications, but they often unstable and can break down over time due to different mechanisms such as flocculation coalescence, well gravitational separation, like creaming sedimentation, which occur either independently or concurrently. This study investigated the utilize chitin nanocrystals (ChiNCs) stabilizers for O/W is derived from green renewable material. ChiNCs were produced by acid hydrolysis powder. The ChiNC's TEM results showed...
Abstract CO2 sequestration in deep saline aquifers is vital to reduce the global carbon footprint. However, this effort can be hampered due salt precipitation during injection, which clogs flow pathways leading a significant reduction injectivity. While freshwater has traditionally been employed as primary solution dissolve precipitated salt, tends re-precipitate upon reinjection post-treatment, exacerbating injectivity damage. The project was divided into two stages: (1) simulating...
Reservoir modeling to predict shale reservoir productivity is considerably uncertain and time consuming. Since we need simulate the physical phenomenon of multi-stage hydraulic fracturing. To overcome these limitations, this paper presents an alternative proxy model based on data-driven deep learning model. Furthermore, study not only proposes development process a model, but also verifies using field data for 1239 horizontal wells from Montney formation in Alberta, Canada. A neural network...
This study focuses on reducing the weight of stack applied to unit cell during structuring process a solid oxide fuel (SOFC) stack. By using porous Ag coating layer as current collector, separator plates and connectors are eliminated manufacturing cost can thereby be reduced. Additionally, performance stability significantly improved by contact resistance between cells. The used in this optimized adjusting thickness ratio graphene paste, which affects dispersibility porosity. makes it...
Abstract The proposed method is a model using data-driven modeling. As many databases are available, we propose new alternatives to production analysis exploratory data (EDA) and deep neural network (DNN) techniques. It an economical time-saving workflow that can replace alternate the traditional physics-based In this study, field used about 1239 wells from Montney shale formation in Alberta, Canada. Through EDA, verified correlation between each variable of datasets distribution, 1143 were...
An investigation was carried out about the gold nanotube synthesis via a galvanic replacement reaction. The progress of investigated using electron microscopy and UV‐Vis spectroscopy. In addition, reaction rates formation in early stage were studied. chlorine ion concentration linearly increased with precursor but deviated from stoichiometric amounts. This deviation probably due to AgCl precipitates formed by ions dissolved silver ions. promoted temperature nonlinearly proportional...
This research presents the selection of an appropriate decline curve analysis (DCA) methodology according to transient production performance a multi-fractured horizontal well in unconventional gas field by using cumulative incline rate (IQp) The IQp introduced this is change per unit time divided production. was confirmed for use as indicator that could generalise and quantify through data. values eight four DCA methods were applied data generated reservoir simulation. Duong method...
A model for considering the scattering effect of an inhomogeneous building facade as effective reflection coefficient a homogeneous surface in ray tracing method is proposed. Hence, computational complexity that considers facades can be preserved conventional method.
The LANL/AES normal-conducting radio-frequency injector has been tested at cw cathode gradients up to $10\text{ }\text{ }\mathrm{MV}/\mathrm{m}$. Field-emission electrons from a roughened copper are accelerated beam energy as high 2.5 MeV and impinge on stainless steel target. energies of the resulting bremsstrahlung photons measured varying levels cavity rf power corresponding different accelerating gradients. At low power, spectra exhibit well-defined end-point positions where number...
Recent studies on seismic wave excitation have revealed that mesoscopic wave-induced fluid flow (WIFF) is a process attenuates the compressional (P) waves in reservoir rocks at frequency bands. Fluid and Biot's slow diffusion (pressure) are produced when P-waves create fluid-pressure gradients mesoscopic-scale heterogeneities. Pore pressure continuity can be sustained by converting energy into diffuse away from interfaces or boundaries. Biot’s fail to comply with square-law approach because...
We present approximation algorithms with O(n^3) processing time for the minimum vertex and edge guard problems in simple polygons. It is improved from previous O(n^4) of Ghosh. For polygon, there are visibility regions, thus any algorithm set covering problem ratio log(n) can be used n sequence. prove that all points polygons guaranteed by O(n^2) sinks vertices edges : comes to bound.