A5101645285- Drilling and Well Engineering
- Hydraulic Fracturing and Reservoir Analysis
- Rock Mechanics and Modeling
- Tunneling and Rock Mechanics
- Metallurgy and Material Forming
- CO2 Sequestration and Geologic Interactions
- Hydrocarbon exploration and reservoir analysis
- Oil and Gas Production Techniques
- Industrial Technology and Control Systems
- Advanced ceramic materials synthesis
- Evaluation and Optimization Models
- Seismic Imaging and Inversion Techniques
- Enhanced Oil Recovery Techniques
- Extenics and Innovation Methods
- Geotechnical Engineering and Underground Structures
- Environmental Quality and Pollution
- Regional Economic and Spatial Analysis
- Methane Hydrates and Related Phenomena
- Metal Alloys Wear and Properties
- Recycling and utilization of industrial and municipal waste in materials production
- Nuclear materials and radiation effects
- Concrete and Cement Materials Research
- Manufacturing Process and Optimization
- Sustainable Industrial Ecology
- Geothermal Energy Systems and Applications
China University of Petroleum, Beijing
2017-2025
Dalian University of Technology
2024
Peng Cheng Laboratory
2024
Anhui University of Science and Technology
2020-2023
Chinese Academy of Social Sciences
2015
Beijing Foreign Studies University
2014
Nanchang Hangkong University
2008-2013
Aero Institute
2011
South China University of Technology
2011
Délégation Centre Limousin Poitou-Charentes
2011
Improving the rock-breaking efficiency of hard rock formation has always been concern in drilling. Compound impact drilling technology is a new method to achieve efficient crushing by exerting axial and torsional impacts on bit. In this study, investigate dynamic process mechanism under compound impact, numerical model was developed based cohesive elements. Dynamic tests sandstone were conducted verify effectiveness method. Then, simulated using proposed model. Finally, effects parameters...
The sustained casing pressure (SCP) caused by the sealing failure of cement sheaths has become one main threats to safe and efficient production high-temperature high-pressure (HTHP) gas wells. An actual HTHP well was used as an example, temperature calculation models were established. Then, temperature–pressure coupling finite element casing-cement sheath-formation assembly for whole established, factors affecting integrity examined. Finally, maximum wellhead annular based on constraints...
Pressure fluctuations caused by sand-plugging during the fracturing process can hinder displacement of fluid and reduce effectiveness reservoir stimulation. Existing wellbore multiphase flow models struggle to account for transient distribution states particles various sizes, limiting our understanding pressure behavior post-sand-plugging. This paper introduces a one-dimensional solver based on Euler-moment method. model considers rates aggregation fragmentation solid particles, initial...
Low-permeability reservoir has low matrix permeability and small pore throat. Conventional enhanced oil recovery methods are difficult to effectively displace crude in low-permeability reservoirs. In this work, a new nano-imbibition displacement agent (NIAG) was developed by compounding nanoparticle (NI) surfactant (APEG). The dispersion stability, interfacial tension wettability were evaluated. Core imbibition experiments carried out study the effect of cores. results show that average...
Casing deformation is evident during the development of shale oil and gas wells in Sichuan Junggar Basins China. Their casing characteristics, distribution law points, main controlling factors were analyzed. According to analysis results, shear cause China has characteristics “a dense heel end a sparse toe end”. Faults account for 75% fault slip caused by multi-stage fracturing primary factor responsible. The calculation model that takes into fluid invasion was established, dynamic variation...
Abstract Continuous gas leakage paths of cement sheath during hydraulic fracturing were investigated in this study. The finite‐element models a casing–cement‐sheath–formation assembly for the whole wellbore established, integrity single‐stage was analyzed firstly, and factors affecting examined. Furthermore, cyclic compression test conducted. Then, results accumulative plastic strain under intermediate casing shoe multistage analyzed. Finally, mechanism dilatancy stone tests show that radial...
Casing shear deformation caused by fault slip is a serious problem that restricts shale gas development. As yet, there no effective method for controlling casing deformation. In this study, cement sheath with hollow glass microspheres was used to prevent and mitigate slip. An equivalent outer-diameter model established. This analyzes the mechanism which controlled under condition of The in were broken owing strong forces internal volume released, reduced distance across casing. prevented or...
This study focused on the sealing failure mechanism and control method for a cement sheath during hydraulic fracturing. Taking shale gas well as an example, whole wellbore numerical models of casing-cement sheath-formation assembly were established, modes at different depths clarified, methods proposed based calculation results. The following conclusions drawn. (1) maximum radial/tangential stress increased/decreased with increase in depth, above intermediate casing shoe posed risk...