Computational Geomechanics Using FLAC, FLAC3D, and UDEC

Short Title: FLAC – UDEC Geomechanics

The main objective of this course is demonstrating the implementation of numerical modeling and geomechanics simulation in reservoir engineering. The course focuses on the practical applications of numerical modeling for simulation and analysis of geomechanics problems such as wellbore stability, geothermal analysis, flow analysis, and hydraulic fracturing. Several topics including elasticity and plasticity of the rock medium, constitutive models, stress distribution, and permeability considerations will be discussed. The simulation procedure of isotropic and transversely isotropic medium and faults and discontinuities will be presented. Commercial programs for geomechanics modeling will be introduced, and finite difference, finite element, and distinct element methods for numerical modeling will be described. Different software tools including FLAC, FLAC3D, and UDEC will be considered for conducting simulations. 

COURSE SCHEDULE
Course start date: 8 October, 2021
Course end date: 26 October, 2021
Exam return due (only for participants seeking certificate): 31 October, 2021
Live question and answer sessions:
• October 9, 11 to 12 pm Central Time (Chicago)
• October 16, 11 to 12 pm Central Time (Chicago)
• October 23, 11 to 12 pm Central Time (Chicago)

 COURSE OUTLINE
• Introduction to numerical modeling in geomechanics
• Introduction to finite element, finite difference, and distinct element modeling using FLAC, FLAC3D, UDEC, and 3DEC
• Constitutive models used for conventional and unconventional reservoirs
• Practical application of two-dimensional stress/strain wellbore stability analysis using FLAC
• Practical application of three-dimensional stress/strain wellbore stability analysis using FLAC3D
• Three-dimensional modeling and analysis of inclined wellbores using FLAC3D
• Wellbore stability analysis under drilling mud pressure using FLAC
• Flow analysis and permeability considerations
• Practical application of hydraulic fracturing and fluid injection into porous medium using UDEC
• Discontinuity and faults modeling in underground reservoirs
• Geothermal analysis of underground reservoirs using FLAC

COURSE HIGHLIGHTS
• Duration: Three weeks
• Full access to 18 hours of lecture videos
• Full access to lecture notes
• Solved practical examples
• 1 month FLAC and FLAC3D full licenses
• Live question and answer sessions
• Three months extended access to course materials and videos
• Lifetime membership of LinkedIn private computational geomechanics group
• Certificate and 20 PDH credits
• Max. capacity: 12 participants

FEES
General: $1,200
Students: $900*
*Please email the scan of your student ID and course title to [email protected] to receive your student discount coupon.

TOOLS USED
FLAC: 2D Finite Difference Analysis
FLAC3D: 3D Finite Difference Analysis
UDEC: 2D Distinct Element Analysis

CERTIFICATE
Mohr Academy Certificate will be awarded to the participants upon successful completion of the course requirements and passing the course exam. The certificate includes 20 PDH credits (Professional Development Hours).

Course Developer & Instructor

SIAVASH ZAMIRAN, Ph.D., P.E.
Geotechnical Engineer

Dr. Zamiran is a geotechnical and geomechanics engineer with over ten years of industry and academic experience in different geotechnical and petroleum engineering disciplines. Currently, Dr. Zamiran is a Senior Project Engineer at MEA Inc. and an adjunct professor at Missouri University of Science and Technology. He has held multiple short courses and workshops in the area of computational geotechnics and geomechanics including courses in different institutions such as California Institute of Technology, University of North Dakota, Southern Illinois University, and Missouri University of Science and Technology. His areas of expertise includes computational geotechnics and geomechanics, wellbore stability, reservoir geomechanics, geotechnical earthquake engineering, and buried pipeline geohazard investigations. 
Dr. Zamiran is currently a member of ASCE Geo-Institute Computational Geotechnics Committee. He is the winner of national ASCE Edmund Friedman Award in 2019 and ASCE St. Louis Young Engineer Award in 2018.  

Course Sponsor

Our course sponsor, Itasca Consulting Group Inc., will provide temporary licenses of FLAC and FLAC3D for participants during the course

What our participants say about the Computational Geomechanics course…

“Anyone with solid background knowledge, looking for practical experience in continuum and discontinuum geomechanical modelling, will find the course a very robust and hands-on introduction to three of Itasca’s well-known numerical simulators. Working for a state mining regulator, I had so far relied on theoretical knowledge and common sense when it came to assessing study results obtained with the help of one of the programs. Thanks to Dr. Zamiran’s thorough lectures, the opportunity to ask questions and the chance to experiment with basic models of my own, I now have a much better understanding of the practical workflows, options and pit-falls in such undertakings. The course will be particularly useful to anyone planning to professionally use one of the programs in the near future.”

Geomechanics Engineer, Hanover, Germany

“I am a reservoir engineer dealing with the technical operational aspects of underground gas storage. It was really helpful to learn about the usage of the widely used numerical software packages in the industry and how they can handle praxis-oriented geomechanical problems on a theoretical basis. During the course, I learned how to investigate in the future my technical questions on my own with the help of technical descriptions of applied programs. Many thanks to our instructor and course trainer. With his help now I am ready to continue my technical education in the field of geomechanical modeling by the application of industry-leading numerical simulators.”

Senior reservoir engineer, Dusseldorf, Germany

“As a beginner in FLAC3D & UDEC, I found the course content and the examples explained very helpful. The course material and the recorded lectures were made accessible at all times during the course. Dr. Zamiran   was very kind to offer individual Zoom sessions to answer questions and help with the software. I strongly recommend the course if you are using FLAC, FLAC3D, or UDEC in your research or projects.”

Ph.D. Student of Petroleum Engineering, Colorado School of Mines, Colorado, USA

FULL COURSE OUTLINE
 
Section 1. Introduction to Numerical Modeling in Geomechanics
• Application of Numerical Modeling
• Idealized Field Conditions in Numerical Modeling
• 1D, 2D, and 3D Modeling
• Numerical Modeling Procedure
 
Section 2. Numerical Methods and Tools
• Numerical Methods in Geomechanics
• Finite Element Method
• Finite Difference Method
• Discrete Element Method
• Limit Equilibrium Method
• Hybrid Methods
• Element vs. Grid
• Discontinuous vs. Continuous Models
• Itasca Modeling Tools
• FLAC and FLAC3D Introduction
• UDEC and 3DEC Introduction
• PFC2D and PFC3D Introduction
• Constitutive Relationships
• Elastic Model
• Mohr-Coulomb Failure Criteria
• Other Constitutive Models
 
Section 3. Finite Difference Modeling Using FLAC 
• FLAC User Interface
• FLAC Finite Difference Grids
• Bad Geometry in Model Development
• Grid vs. Gridpoint
• Boundary Conditions
• Initial Conditions
• Applied Conditions
• Sign Conventions and Unit Systems
• Basic Commands in FLAC
• Example 3.1: Wellbore Stability Analysis in FLAC
 
Section 4. Finite Difference Modeling Using FLAC3D 
• Introduction to FLAC3D Modeling
• Grid Generation in FLAC3D
• Example 4.1: Simple Geometry Generation
• Example 4.2: Vertical Wellbore Stability Analysis, Isotropic Condition
• Anisotropy Modeling
• Example 4.3: Vertical Wellbore Stability Analysis, Anisotropic Condition
• Example 4.4: Inclined Wellbore Stability Analysis, Anisotropic
• Example 4.5: T-Section Tunnel Modeling Using Graphic User Interface
 
Section 5. Flow Analysis and Permeability Considerations
• Flow Analysis in FLAC and FLAC3D
• Example 5.1: Flow-Mechanical Wellbore Stability Analysis in FLAC
• FLAC3D Equivalent Codes for Flow Analysis
• Example 5.2: Flow-Mechanical Wellbore Stability Analysis in FLAC3D
 
Section 6. Distinct Element Modeling Using UDEC
• UDEC Introduction and Applications
• Block and Joint in UDEC
• Polygon Generation
• Example 6.1: Hydraulic Fracturing in a Naturally Fractured Reservoir 
• Example 6.2: Hydraulic Fracturing in a Prescribed Crack
 
Section 7. Geothermal Analysis
• Introduction to Geothermal Analysis
• Introduction to FISH Programing Language
• Example 7.1: Geothermal Analysis of a Wellbore in a Permafrost Formation in FLAC
 
Course Exam
(Only for participants requesting certificate and course Professional Development Hours)

 

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