A5079745679- Enhanced Oil Recovery Techniques
- Hydrocarbon exploration and reservoir analysis
- Petroleum Processing and Analysis
- Hydraulic Fracturing and Reservoir Analysis
- Pickering emulsions and particle stabilization
- Drilling and Well Engineering
- Surfactants and Colloidal Systems
- Reservoir Engineering and Simulation Methods
- Oil and Gas Production Techniques
- Geological Modeling and Analysis
- Advanced Polymer Synthesis and Characterization
- Hydrogels: synthesis, properties, applications
- Calcium Carbonate Crystallization and Inhibition
- Grouting, Rheology, and Soil Mechanics
- Machine Fault Diagnosis Techniques
- Advanced machining processes and optimization
- Industrial Vision Systems and Defect Detection
- Proteins in Food Systems
- Erosion and Abrasive Machining
- Fault Detection and Control Systems
- Catalysis for Biomass Conversion
- Polymer composites and self-healing
- Biofuel production and bioconversion
- Advanced Cellulose Research Studies
- Polymer Nanocomposites and Properties
China University of Petroleum, East China
2015-2024
China University of Petroleum, Beijing
2005-2024
Lanzhou Veterinary Research Institute
2021-2023
Chinese Academy of Agricultural Sciences
2021-2023
Lanzhou University
2023
Hunan University
2022
Tianjin University of Science and Technology
2011-2013
Tianjin University of Technology
2011
Hainan Medical University
2010
Hengshui University
2009
Chemical flooding is a promising technique for enhanced heavy-oil recovery, especially reservoirs where thermal methods are not feasible. This paper discusses results of laboratory investigation, including sandpack experiments and micromodel studies, assessing the suitability effectiveness alkaline alkaline–surfactant (AS) recovery. The flood show that tertiary oil recovery AS lower than those alkaline-only flooding, although interfacial tension between heavy system can be reduced to...
In this study, the microscopic displacement mechanisms of alkaline flooding for enhanced heavy-oil recovery are investigated using a micromodel. It has been observed that exhibits better sweep efficiency than waterflooding, and serious viscous fingering is significantly reduced. The main solution penetrates in crude oil water drops are, subsequently, formed inside phase, which can improve mobility ratio and, thus, lead to improvement efficiency. higher concentration, more easily phase....
The betaine-type amphoteric surfactant exhibits excellent ability in reducing oil–water interfacial tension for many kinds of crude oil, but less attention is paid to its adsorption behavior on oil reservoir rock. In this paper, a high-performance liquid chromatography (HPLC) method established measure the betaine quartz sand. mobile phase consists methanol and water (methanol/water = 90:10 or 85:15 by volume). column temperature 40 °C; flow rate 1 mL/min; sample volume 20 mL. On basis...
To investigate mechanisms of alkaline flooding for heavy oil, we designed three systems, including NaOH, diethylamine, and compound alkali (a mixture NaBO2 Na2CO3; NaBO2/Na2CO3 = 2:1 by weight) evaluated their performances Binnan oil sandpack tests. Results indicated that the displacement efficiency depended upon concentration type alkali. Displacement increased with increase basicity. It was relative to emulsion generated solutions a certain degree but independent interfacial tension...
The effects of the oil acid number, alkaline concentration and type, brine salinity, test temperature on flooding for heavy are investigated in this study. results indicate that tertiary recovery is positively affected by which a prominent factor flooding. Another important fluid. best displacement efficiency can be achieved only when reaches certain value. However, honeycomb blocks with poor mobility may form too high. In comparison to Na2CO3, NaOH performs better Zhuangxi 106 oil....
The SiO 2 nanoparticles exhibit stronger aggregate tendency in the negatively charged polymer solutions, therefore enhancing viscosity of solutions and mechanical properties their gels.
Betaine surfactants with lipophilic groups of different lengths were synthesized in this research and the dynamic interfacial tension (IFT) between solutions these three kinds crude oil from Shengli Oilfield are measured. The results indicated that, for Gudao Gudong heavy oil, cetyl dimethyl hydroxyl sulfobetaine (SBET-16) was most efficient lowering IFT case no alkalis, while Shengtuo carboxymethyl betaine (CBET-16) best. SBET-16 concentration 0.003–0.1% 0.005–0.1% can reduce oil/water to...
As a temperature-resistant and salt-resistant polymer, acrylamide 2-acrylamide-2-methylpropane sulfonic acid (abbreviated as AM-AMPS) copolymer is currently widely used in drilling, water control oil production stabilization, enhanced recovery other fields, but its stability under high temperature has been less studied. The degradation process of the AM-AMPS solution was studied by measuring viscosity, degree hydrolysis, weight-average molecular weight at different temperatures aging time....
Accurately determining the relationship between water saturation and recovery factor, as well elucidating underlying action mechanisms, is of critical importance for selection drive development approaches in tight reservoirs maximizing ultimate factor. In this study, commencing with various a comprehensive exploration along influencing carried out. This achieved by integrating displacement imbibition experiments molecular dynamics simulations. The experimental results indicate that...