Qian Zhao

• Impulse Stimulation of acoustic waves or elastic waves for coal cleats is an effective method to improve the permeability of coal which can enhance the production of oil and gas in unconventional reservoirs. The aim of the project is to develop theoretical models from simple to complicated to study the basic mechanism of the effect of impulse waves in small-scale structures(eg Pores, cleats, the interfaces between different materials ).
• CT scan is applied during the project and CT scan slices of coal samples are used as a field data to verify the feasibility of the numerical simulation methods.
• Numerical simulation: apply and extend the existing finite difference based computational model, code, advanced infrastructure at the University of Queensland including super-computing and visualization facilities (Centre of Geosciences Computing, GeoComp) and the field experience and data from the industry partners.
• The detailed analysis for the effects of different physical attributes of ultrasonic wave on permeability enhancement of coal seam gas reservoirs. The detailed analysis for the effects of structures, geometry, composition, material attributes of coal on permeability enhancement.
• CT image processing, physical property evaluation and numerical simulation model building.
• Research achievements:

(1) Zhao, Q., Xing, H

Simulation of Effects of Incident Angles and Frequencies of Ultrasonic Waves on Wave Energy Propagation and Variation of Cleat Width Induced by Ultrasonic Waves

Pure and Applied Geophysics

178, 1281-1296 (2021)

Https://doi.org/10.1007/s00024-021-02705-22

Qian Zhao, Huilin Xing, Fan Yang

(2) Numerical simulation of coal cleat effects on ultrasonic wave induced mechanical vibration and wave energy propagation

(Poster Presentation & Conference Journal) 2019 INTERNATIONAL CONGRESS ON ULTRASONICS BRUGES, BELGIUM 3-6 September 2019

(3)Qian Zhao, Huilin Xing

Numerical simulation of coal cleat effects on ultrasonic wave induced mechanical vibration enhancing permeability

(Oral Presentation & Conference Journal) The SEG San Antonio 2019 Conference, San Antonio, Texas, USA 15-20 September 2019.

• Study and utilize the flow of seismic data processing
• Analyze the seismic data, the data is maritime data or land seismic date, and the complex and varied environment make the multi-cable seismic data noise characteristics obvious
• Analyze the types of noise including swell, linear noise, gun self-excited noise, outlier noise, external interference, large ship noise and multiple-wave suppression
• Use the relevant modules in GeoEast software
• Study and solve noise suppression problem
• Study and solve multiple wave suppression
• Establishment of accurate speed model
• Research achievements: Second Price of The Seventh "Oriental Cup" National Exploration Geophysics Competition for College Students (National Final)
• Self-motivated, with a strong sense of personal responsibility.
• Worked effectively in fast-paced environments.

• Research on the theory, method and application of forward modelling and inversion of seismic data
• Acquired myself more capable to know more geophysical methods
• Acquired the basic law of high-order finite difference forward modeling and inversions;
• Study basic methods of 3D seismic interpretation, prestack and poststack inversion, and seismic attribution analysis; 3
• Be competent with software including seismic interpretation and inversion software such as Geoeast, Image, Landmark, Paradigm and Recon, geological mapping software such as Coreldraw, Geomap and modeling software like Petrel, etc.;
• Provide the oil and gas fields with geological studies, well deployment plans, development solutions, production plans, etc;
• Study methods of denoising in seismic data processing, including the marine seismic data and land seismic data processing.
• Optimized workflow by organizing tools and materials for easy access during shifts, minimizing downtime between tasks.
• Maintained a safe working environment by adhering to safety protocols and keeping workspaces clean and organized.

• Studied the basic research method of geophysics;
• Acquired myself more capable to solve problems in mathematical methods;
• Acquired myself more capable to collect geological data and design coalmine construction;
• Used software Fortran 90 and wrote programs to analyze and solve problems of high-order finite difference forward modelling;
• Adopted the high-order finite difference method to study numerical simulation of acoustic waves
• Apply the results of project to improve the accuracy of data processing in oil and gas exploration
• Research achievements: School-level Excellent Graduation Design Paper of Undergraduates.
• Demonstrated strong organizational and time management skills while managing multiple projects.
• Self-motivated, with a strong sense of personal responsibility.
• Worked effectively in fast-paced environments.
• Skilled at working independently and collaboratively in a team environment.

• Method study of high-order finite difference forward modelling (Bachelor Thesis);
• Acquired myself more capable to solve problems in mathematical methods;
• Acquired myself more capable to collect geological data and design coalmine construction;
• Used software Fortran 90 and wrote programs to analyze and solve problems of high-order finite difference forward modelling;
• Adopted the high-order finite difference method to study numerical simulation of acoustic waves
• Apply the results of project to improve the accuracy of data processing in oil and gas exploration
• Research achievements: School-level Excellent Graduation Design Paper of Undergraduates.

• Study and apply the basic theories of different geophysical exploration methods, including gravity, magnetic, electrical exploration
• Test Systematic and accurate testing and research on physical properties such as resistivity, density and magnetic susceptibility of various formations around the area before geophysical work
• Draw a map to show exploration results to prospectors in a more intuitive and understandable way. For example, plane contour maps, longitudinal section maps, and three-dimensional maps are commonly used geophysical survey maps that can easily reflect the nature and geological structure of underground rock formations.
• Collaborated with educators to design field trip itineraries that aligned with curriculum goals.