A5101584140- Hydrocarbon exploration and reservoir analysis
- Enhanced Oil Recovery Techniques
- Thermochemical Biomass Conversion Processes
- Hydraulic Fracturing and Reservoir Analysis
- Geotechnical and Geomechanical Engineering
- Mining and Gasification Technologies
- Catalytic Processes in Materials Science
- Catalysis and Oxidation Reactions
- Advanced Photocatalysis Techniques
- Rock Mechanics and Modeling
- Zeolite Catalysis and Synthesis
- Drilling and Well Engineering
- Spectroscopy and Chemometric Analyses
- Catalysis for Biomass Conversion
- Geomechanics and Mining Engineering
- Thermal and Kinetic Analysis
- Coal Properties and Utilization
- Petroleum Processing and Analysis
- NMR spectroscopy and applications
- Surface Modification and Superhydrophobicity
- Advanced Chemical Sensor Technologies
- Hydrology and Watershed Management Studies
- Iron and Steelmaking Processes
- CO2 Sequestration and Geologic Interactions
- Biodiesel Production and Applications
Zhengzhou University
2025
Beijing Normal University
2025
Ministry of Education of the People's Republic of China
2021-2024
Research Institute of Petroleum Exploration and Development
2015-2024
Xi'an Shiyou University
2020-2024
North China Electric Power University
2019-2024
Hefei University of Technology
2023
China National Petroleum Corporation (China)
2020-2023
Tsinghua University
2017-2023
Boston University
2015-2018
The changed status of copper species and active Cu sites NH3-SCR over the Cu/SAPO-34 zeolites synthesized by three different methods has been investigated in this work. combination EPR, H2-TPR SEM results demonstrate that synthesis do not affect types species, but distribution. dominant is CuO-clusters for precipitation sample, it isolated Cu2+ ion-exchange sample. While, one-pot catalyst, both surface CuO are present comparable amount. Additionally, hydrothermal treatment can also change...
Evapotranspiration (ET) is a critical process in the interaction between terrestrial climate system and vegetation. In recent years, ET has undergone significant changes Jiziwan region of Yellow River Basin, primarily due to implementation ecological restoration programs dual impacts change. As result, hydrological cycle processes have been profoundly affected, making it crucial accurately capture trends its components, as well identify key drivers these changes. this study, we first...
Biomass is one of the promising alternative materials to solve energy and environmental crisis. Fast pyrolysis most economical commercially realizable technologies convert biomass useable fuels chemicals. To improve liquid products, co-pyrolysis with polypropylene (PP) over a mesoporous catalyst MCM-41 was studied in this paper. Thermogravimetry–Fourier transform infrared spectroscopy (TG–FTIR) pyrolysis–gas chromatography–mass spectrometry (Py–GC–MS) were used as main analysis methods study...
Abstract Background: Aging and long-term exposure to fine particulate matter (PM2.5) are associated with a higher risk of non-alcoholic fatty liver disease (NAFLD), but evidence on their combined effect is limited. We thus evaluated the joint effects accelerated biological aging PM2.5 incident NAFLD in UK cohort. Methods: included 296,917 Biobank participants without at baseline. Annual mean concentration was using land use regression model. Biological age assessed Klemera-Doubal method...
The fracturing fluid residing in a reservoir undergoes spontaneous imbibition. Here, to explore the mechanism of imbibition and oil displacement, experiments on under different influencing factors were conducted core sample from Ordos Basin Chang 8 formation. Combined with nuclear magnetic resonance technology, we quantitatively evaluated degree production pores during displacement process. Experimental results show that salinity, interfacial tension, crude viscosity are negatively...
Hydrogels that possess adequate toughness in bulk and at soft interface are highly desirable. We report a fully physically crosslinked dual Amylopectin (Amy, the first network)/poly(N-hydroxyethyl acrylamide) (PHEAA, second network) hydrogel, where both networks were hydrogen bonding (H-bonding) crosslinked, with super tunable adhesion hydrogel-soft tissue interface. Through adjustment of bond density, strong tough hydrogels prepared exhibited different levels strength three adhesive failure...
CO2 injection is an effective way to improve oil recovery for tight sandstone reservoirs. In this study, the cores collected from Chang 6 Member of Yanchang Formation in Ordos Basin underwent continuous flooding, and huff puff displacement measurements were under five various pressures, 4, 8, 12, 16, 20 MPa respectively; combined with classification pores cores, differences producing degree varying scale discussed detail. Under reaches up 73.29%, while features a higher degree, it almost...
This study aims to investigate the impact of CO2 huff-n-puff after flooding on recovery efficiency in tight sandstone reservoirs. The experimental methodology involved selection three representative cores with different permeability levels emulate class I, II, and III To examine immiscible, nearly miscible, miscible conditions for reservoir samples, a physical simulation flow system integrated nuclear magnetic resonance technology was employed. performed followed by experiments at five...
The microscopic pore structure of tight sandstone reservoir significantly influences the characteris-tics CO2 flooding after water flooding. research was conducted using various techniques such as casting thin sections, high pressure mercury injection, scanning electron microscopy, Nu-clear magnetic resonance (NMR) testing, and a self-designed high-temperatures high-pressures visualization displacement system. Three type cores with different structures were selected for experiments...
The microscopic pore structure of tight sandstone reservoirs significantly influences the characteristics CO2 flooding after water flooding. This research was conducted using various techniques such as casting thin sections, high-pressure mercury injection, scanning electron microscopy, nuclear magnetic resonance (NMR) testing, and a self-designed high-temperature visualization displacement system. Three types cores with different structures were selected for experiments experiments,...
Abstract A reasonable displacement method is essential to improve the oil efficiency of tight reservoirs. In this study, three different methods were utilized on core samples obtained from Yanchang Formation Chang 8 and 9 reservoirs: spontaneous imbibition displacement, various water flooding rate after imbibitions; furthermore, utilization degree residual in pores was discussed. The imbibitions approximately 26.91% 29.56% for samples, respectively. With an increasing rate, features inverse...
CO2 injection has been accepted as a suitable method for enhancing shale hydrocarbon recovery well achieving storage in reservoirs. In this study, flue gas is proposed better resource recovery. The objective of work conducted to investigate how introduced and affect the adsorption behavior CH4 C2H6, which are two main components gas, on shale, critical understanding fundamental mechanism work, isotherms first measured evaluate relative capacity CO2, CH4, C2H6 typical samples. low-field...