A5100436749- Drilling and Well Engineering
- Grouting, Rheology, and Soil Mechanics
- Hydraulic Fracturing and Reservoir Analysis
- Tunneling and Rock Mechanics
- Oil and Gas Production Techniques
- Geophysics and Gravity Measurements
- Landslides and related hazards
- Geotechnical Engineering and Analysis
- Manufacturing Process and Optimization
- Reservoir Engineering and Simulation Methods
- Metallurgy and Material Forming
- Soil and Unsaturated Flow
- Simulation and Modeling Applications
- Enhanced Oil Recovery Techniques
- GNSS positioning and interference
- Flood Risk Assessment and Management
- Innovative concrete reinforcement materials
- Industrial Technology and Control Systems
- Granular flow and fluidized beds
- Safety and Risk Management
- Hydrology and Watershed Management Studies
- Wireless Sensor Networks and IoT
- Landfill Environmental Impact Studies
- Infrastructure Resilience and Vulnerability Analysis
- Concrete and Cement Materials Research
Xi'an Shiyou University
2012-2023
Southwest Petroleum University
2015-2022
Sinopec (China)
2022
Guizhou Institute of Technology
2022
State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation
2018-2022
Yunnan Environmental Protection Bureau
2020-2021
Harbin Engineering University
2021
Shanghai Institute of Measurement and Testing Technology
2018
University of Science and Technology Beijing
2015
University of Jinan
2014
In the context of climate change, enhanced human activities and ecological changes, danger level for mountain floods has increased significantly, posing direct or potential hazards to local residents. To determine current status, focus trends in flood research, this study, we visualize number publications citations, countries institutions engaged co-citations key literature, keyword categories research areas, using timeline analysis burst detection based on bibliometric software CiteSpace...
Grouting mechanism is one of the important factors on grouting effects practical projects. At present, vast majority Newton fluid penetration mechanisms are considering that viscosity during whole process was constant, so theoretical diffusion radius calculated by them far greater than actual measurements in engineering. Carrying out analysis and experimental research, rheological equation seepage motion for time-dependent behavior parameters were established; then, deduced. What more, they...
This paper try to analyze the rheological behavior during wax injection, and build a mathematical model simulate injection process. By using Moldflow, pattern with different ingate configurations optimize modeling product design. study helps improve design quality, shorten development cycles, lower down overall cost enhanced competition in market.
Melamine, sodium chloroacetate and hydroxide were used as raw materials to synthesize a kind of neutral quaternary ammonium salt (NQAS) potential clay swelling inhibitor water-based drilling fluid additive, the reaction conditions screened based on linear expansion rate bentonite. The inhibitive properties NQASs investigated by various methods, including montmorillonite (MMT) test, mud ball immersing particle distribution measurement, thermogravimetric analysis scanning electron microscopy...
Time and water‐to‐cement ratio have significant influences on rheology of cement grouts. In order to study effects time Bingham grouts, taking grouts widely used in practical engineering (cement with 0.75–1.25) as research object, some rheological experiments five 0.8, 0.9, 1.0, 1.1, 1.25 were carried out at six moments 0, 5, 10, 20, 30, 60 minutes, respectively. Combining theoretical discussion numerical analysis, influence coupling properties was discussed. Results show that the level α =...
The continuous exploration and development of oil wells increases the risk leakage from abandoned brings challenges to traditional plugging abandonment technology. In order overcome above problems, a thermite technology is proposed in this field. uses aluminothermic reaction melt original or set material for sealing. natural convection under different confinement conditions directly affects heat flux transfer process. study melting effect on sandstone, based conduction theory, model...
Based on the special rheological model of foam fluid, mathematical models cuttings transport for stable drilling in vertical/near vertical sections, transitional section, and inclined/horizontal sections are established this paper. The effects various flow parameters bed thickness annulus analyzed. results show that inclination, velocity, rate, eccentricity key factors affecting transport. a gradually decreases with inclination decrease highly deviated/horizontal sections. When is reduced to...
Aggregate, the main ingredient of concrete, has a great effect on mechanical property and durability concrete. Sulfoaluminate cement lots special properties such as high early-age compressive strength, fast hydration setting rate, with slight swelling. But aggregate gradation Fuller distribution sulfoaluminate concrete was seldom studied. Hence, in this paper, experimental investigations gradations according to were presented. aggregates beneficial close packing aggregates, density changed...
Abstract During the drilling process of RMR system, when gas reservoir is drilled, bottom hole pressure and formation are in an unbalanced state, fluid invades under action difference, further causing complex situation such as overflow kick. In order to effectively control during ensure safety, a calculation model system influx condition established based on gas-liquid two-phase flow theory. Three regulation methods increasing outlet pump subsea at same time, reducing while remains...
Many problems have occurred in using an 11-roll leveler 2250 cross cutting line due to the increasing maximum strength of hot rolled coil.To determine cause these problems, a model calculate leveling capacity quickly is constructed leveler's structural parameters and force-energy parameters, then contrastive analysis made between calculated results design capacity.The influence coefficient speed on also investigated.
At present, the average drilling depth on land in China is over 3000 m. Drilling fluid with low viscosity, high yield value, ratio of dynamic shear force and temperature resistance are very critical for deep ultra-deep wells. Low viscosity can generate less frictional during circulation, thus reducing circulation energy consumption pressure loss. same time, require value to effectively remove rock chips maintain well wall stability. stability under pressure, be discharged from borehole more...