A5091789364- Drilling and Well Engineering
- Reservoir Engineering and Simulation Methods
- Hydraulic Fracturing and Reservoir Analysis
- Oil and Gas Production Techniques
- Hydrocarbon exploration and reservoir analysis
- Fluid Dynamics and Mixing
- Methane Hydrates and Related Phenomena
- Risk and Safety Analysis
- Enhanced Oil Recovery Techniques
- Atmospheric and Environmental Gas Dynamics
- Occupational Health and Safety Research
- Offshore Engineering and Technologies
- Seismic Imaging and Inversion Techniques
- Engineering Diagnostics and Reliability
- Asymmetric Hydrogenation and Catalysis
- Flow Measurement and Analysis
- Groundwater flow and contamination studies
- Coal Properties and Utilization
- Advanced Algorithms and Applications
- Petroleum Processing and Analysis
- Heat Transfer and Boiling Studies
- Smart Grid and Power Systems
- Metallurgical Processes and Thermodynamics
- Catalysis for Biomass Conversion
- Advanced Sensor and Control Systems
China University of Petroleum, East China
2014-2025
China University of Petroleum, Beijing
2010-2015
China University of Geosciences (Beijing)
2012
Research Institute of Petroleum Exploration and Development
2012
State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation
2009
Chengdu University of Technology
2009
During drilling in ultra-deep wells of petroleum engineering, the challenges associated with dynamics gas and fluid large annular spaces diameters exceeding 190 mm, which significantly impacts pressure variations, flow stability, operational safety. To explore these complex behaviors, numerical simulations were conducted based on Computational Fluid Dynamics. A total 105 performed to analyze behavior under various combinations air water velocities. Superficial liquid velocities ranged from...
A method to generate fractures with rough surfaces was proposed according the fractal interpolation theory. Considering particle-particle, particle-wall and particle-fluid interactions, a proppant-fracturing fluid two-phase flow model based on computational dynamics (CFD)-discrete element (DEM) coupling established. The simulation results were verified relevant experimental data. It proved that can match transport accumulation of proppants in well. Several cases numerical simulations carried...
The risk of well control is high when displacement gas kick occurs in the deep fractured reservoir, and improper handling can easily lead to blowout, which will seriously affect drilling. Using Fluent software, a simulation model was constructed depict interaction horizontal with vertical fractures. process simulated under formation temperature pressure conditions. An analysis conducted assess impact fracture width, quantity, as viscosity density drilling fluid on gas-liquid displacement. It...
Abstract In the process of ultra-deepwater drilling, safe density window is narrow, and there are issues with large temperature differences alternating high low temperatures, making wellbore pressure control challenging highly prone to complex lost circulation incidents. To achieve efficient accurate identification timely monitoring incidents essential. address current insufficient real-time performance accuracy in for this paper proposes a multi-parameter method based on support vector...
During shallow hydrate reservoir drilling in deepwater, hydrates the and cuttings decompose under specific temperatures pressures. This process impacts temperature of wellbore as well concentration cuttings, leading to intricate gas-liquid-solid multiphase dynamics wellbore. These can cause significant errors predicted pressure, which may lead blowout accidents. paper examines effects decomposition on field, considering migration both reservoir. A flow model was developed for deepwater...
Based on the classification and flow behaviors of two phase in wellbore annuli, hydraulic models for slug annular annuli vertical or inclined wells were established, regime transition criteria also obtained. behavior research multiphase liquid film zone was used as control volume, effect tubing film, casing droplets gas core area mass momentum transfers considered. The conservation equations flows Then evaluation criterion pattern transitions including dispersed to flow, bubble flow. model...
The most prominent aspect of multiphase flow is the variation in physical distribution phases conduit known as pattern. Several different patterns can exist under conditions which have significant effects on liquid holdup, pressure gradient and heat transfer. Gas–liquid two-phase an annulus be found a variety practical situations. In high rate oil gas production, it may beneficial to fluids vertically through configuration between well tubing casing. annuli are from pipe flow. There both...
Summary Gas-oil two-phase flow usually occurs during gas influx into the wellbore annulus of deepwater drilling with oil-based fluid or gas-oil production from annulus. A pattern transition often is used in well control parameter design. Related studies primarily have focused on gas-water flow, which significantly different gas-viscosity oil flow. We conducted experiments a facility that included section was 13 000 mm long, 60-mm inner pipe and 100-mm outer range viscosities 16 to 39 mPa∙s...
The feasibility of gas kick early detection outside the riser was analyzed based on gas-liquid multiphase flow theory. Then an experimental platform for Doppler ultrasonic wave established and propagation experiments in two-phase gas-water (sucrose solutions) were conducted. time frequency domains signals during analyzed. results show that: (1) No matter pump or off, detected average signal voltage increased first then decreased with increase void fraction, had a quadratic function relation...
Abstract With the deepening of exploration and development onshore offshore oilfields, cluster wells infill are more popular. It will greatly increase possibility well collision during drilling would have great harm to production oilfield. The normal detecting technique anti-collision is based on measured trajectory data judgment abnormality drilling. error uncertainty downhole situation result a high risk collision. Based drill bit vibration, new technology proposed. Firstly, acceleration...
During offshore deepwater drilling, the strata with abnormal pressure are often encountered and gas invasion overflow occur easily. If they cannot be detected controlled in time, blowout may happen even get out of control, which will cause considerable economic loss irreparable casualties damage marine ecologic environment seriously. How to monitor early during drilling is a global research hot, focus difficulty at present. In order provide theoretical guidance for monitoring riser this...
To date, researchers are still using the method used for conventional gas wells to calculate wellbore flowing pressure of condensate wells, while calculating accuracy cannot meet demands performance analysis and production management. From phase behavior transition in process, combined with temperature distribution change, calculation model is established based on gas-liquid equilibrium solved four-point implicit difference scheme. The calculated result agrees well actual situation can solve...
Abstract For low permeability reservoirs with threshold pressure gradient, the dynamic of water coning is different from that in conventional gas reservoir. If prediction methods are applied to calculate time, errors occur and cannot reflect real situation coning. This paper considers impact modifies process flow through mathematical deduction, this gets breakthrough time formula low-perm reservoir bottom water. Through calculation cases, preliminarily analyzes effect gradient on time. With...