Injection Well - Theory and Practice
A 2-Day Course

Course Description

Worldwide, on a daily basis, thousands of wellbores are used for injection of carbon dioxide, gas, water, steam, and other fluids deep into different geological zones of interest. On the first day of this course, injection well design and fluid mechanics of injected fluid in the well tubing and near wellbore zone are presented. Of particular interest is the relationship between fluid flow rate and pressure, specifically in the injected strata. The fluid injectivity is constrained by plugging (positive skin factor) and induced fractures (negative skin factor). For assessment, Hall, Hearn, Theis, pressure superposition methods, and area of review are presented. In day two, injection well testing and interpretation as relating to obtaining values of skin factor, injectivity index, and reservoir pressure are discussed.

Who Should Attend

This course is intended for the following audience:

Geologists
Reservoir engineers
Environmental engineers
Production engineers
Personnel involved with carbon dioxide injection, waterflooding, steam injection, and disposal well operation

Course Level

This course is an intermediate level course

Instructor

Dr. Mason M. Medizade – President and CEO, Petrolects, LLC

Dr. Mason Medizade has more than twenty five years of experience in the oil and gas industry, worldwide. His oilfield experience spans from reservoir engineering, drilling, and completion, to enhanced oil recovery and petroleum production. Specifically, he has done engineering work related to real time production monitoring, production enhancement, drilling fluids, reserve estimation, filtration, sand control, surface facility design, and EOR and reservoir management. He has been involved in consulting, research and teaching in renewable and non-renewable energy sources since 1984. Dr. Medizade’s recent oilfield work involves real time flow monitoring for which he has obtained a US patent. Dr. Medizade is president and CEO of Petrolects, LLC.

Dr. Medizade is also a faculty member in the mechanical engineering department at California Polytechnic State University in San Luis Obispo,

where he focuses on petroleum engineering, wind energy, thermodynamics, and fluid mechanics. Professor Medizade has taught numerous short courses in petroleum engineering to clients such as Petroleum Development of Oman (PDO), California Division of Oil and Gas, Petroleum Technology Transfer Council (PTTC), Texaco, Pertamina, and others. Dr. Medizade is an active member of the Society of Petroleum Engineers (SPE) and many other professional societies. He has authored numerous technical papers. His recent SPE paper discusses cyclic steam injection monitoring in diatomite. He has won numerous awards and certificates for his teaching and research work, including professorship from UNOCAL. He holds Ph.D. and M.S. degrees in petroleum engineering from University of Southern California (USC), and a B.Sc. degree in chemical engineering from Abadan Institute of Technology (AIT) in Abadan, Iran.

Course Content

Day 1

Well lay-out design
Well completion, casing, and cement
Fluid flow in injection wellbore
Fluid flow into reservoir
- Flow regimes
- Vertical well
- Horizontal well
- Water injection
- Carbon dioxide injection
- Gas injection
- Steam injection
- Injectivity index
- Skin factor
Injection assessment tools pressure and flow rate relationships
- Hall method
- Hearn method
- Theis method
- Method of superposition
- Pressure profile around injection well
- Potentiometric model
- Area of review

Day 2

Injection well testing and analysis
- Injection test
- Fall off test
- Two rate test
- Multirate test
- Step rate test
Use of DOE Black Oil Simulator
- BOAST model
- Case histories
- Simulation runs

Course Materials

The following course materials will be provided by Petrolects:

Course workbook

For more information on pricing and availability

Injection Well - Theory and Practice A 2-Day Course