Wellbore Stability and Integrity

Dr. Meng is a postdoctoral researcher at Los Alamos National Laboratory. His research interests include wellbore stability and integrity, poroelasticity modeling, carbon sequestration, and machine learning. He holds a Ph.D. degree in Petroleum Engineering from The University of Tulsa, and bachelor and master degree in Petroleum Engineering from China University of Petroleum. He has authored and co-authored over 30 technical papers, filed 1 US patent, and delivered more than 10 presentations at international conferences or universities. He also serves as associate editor for Journal of Petroleum Science and Engineering, and a guest editor for Geofluids in 2020/2021, and a technical editor/reviewer for 28 prestigious journals. Dr. Gao is currently an assistant professor at Southwest Petroleum University, China. He is a selected affiliate member of EMI Poromechanics Committee, ASCE. He was a research fellow at National University of Singapore. He holds a Ph.D. in petroleum engineering from the China University of Petroleum (Beijing). His research interests focus on Poromechanics, such as the wellbore stability analysis and Mandel-Cryer effect considering coupled thermo-hydro-mechanical-chemical processes for saturated or unsaturated porous media, and sand production prediction using the poro-plastic theory. He has authored and co-authored over 20 technical papers. Dr. Zhang is a postdoctoral researcher at Missouri University of Science and Technology, where he obtained his PhD and master degrees in Petroleum Engineering. He earned his bachelor degree in Petroleum Engineering from China University of Petroleum (Beijing). He is a geomechanics researcher focusing on: (1) Full lifecycle evaluation of wellbore integrity under downhole conditions for oil & gas, CO2 sequestration, and geothermal wells. (2) Large-scale mechanical earth modeling. He has participated in 5 industry-related projects in wellbore integrity and geomechanics, authored and co-authored over 20 technical papers, and served as a guest editor for Advances in Geo-Energy Research since 2021. Dr. Zhang is a geoscience advisor in SINOPEC TECH Houston. He Was Sr. Advisor at Hess and Staff Petrophysical Engineer at Royal Dutch Shell, Geomechanics Manager at Halliburton/KSI, USA. He has authored ~100 papers and 3 books with 3900+ citations. An author of highly cited papers in Petroleum Geomechanics, Pore Pressure and Wellbore Stability. His specialties include pore pressure & fracture gradient prediction; borehole stability, wellbore strengthening; in-situ stress, geomechanics & FEM modeling, HF rock mechanics. He is also: •Author of a new book “Applied Petroleum Geomechanics”, published by Elsevier •25+ year world-wide experience in geomechanics/rock mechanics and pore pressure prediction. •Associate Editor of Elsevier’s Journal of Petroleum Science and Engineering •Foreign Member of Russian Academy of Natural Sciences. •President of China University of Geosciences Alumni Association - Southern USA, 2011-2014.

Part 1: Analytical modelling on wellbore stability
1. Introduction of wellbore stability
2. Fundamental poroelastic theory
3. Poroelastic modelling of wellbore stability
4. Thermoporoleasitc modelling of wellbore stability
5. Thermochemoporoleasitc modelling of wellbore stability
6. Dual porosity single and dual permeability model
7. Dynamic model
8. Two-phase flow of wellbore stability
9. Application of poroelasticity in geothermal wellbore stability

Part 2: Numerical modelling on wellbore stability
10. Finite element modelling of wellbore stability
11. DEM modelling of wellbore stability
12. Comparison between analytical and numerical solution

Part 3: Wellbore integrity
13. Introduction of wellbore integrity
14. Oil well cement hardening and failure
15. Thermoelastic modelling
16. Porothermoelastic modelling
17. Finite element modelling of wellbore integrity
18. Case failure analysis and mitigation
19. Application of wellbore integrity model for CO2 storage