Petrolects Training

Special Topics in Petroleum Production Enhancement
A 2-day Course

Course Description:

The key factor to economic life of any oilfield is ability of the operator to maintain and enhance oil production. These factors have more relevance for consideration in the US because of the share of oil production from marginal wells being about 25% of total production. This two day course discusses in details the near wellbore factors, sand-face factor, and the production tubing factor. After a brief introduction on petroleum production methods, effects and causes of pore and throat size reductions in the vicinity of the wellbore are discussed. The effects and causes related to roles of relative permeability are presented. Day one will end with discussions of diagnostic tools available such as production logging and well testing. In day 2 of this course, production logging and well testing will be discussed further as assessment tools. Single and two phase flow of compressible and incompressible flow in vertical, slanted, and horizontal pipes and methods of production enhancements are presented and discussed. Class example problems will be in the form of spread-sheet. It is recommended that participants bring a lap-top with them.

Course Level:

This course is an intermediate level course.

Who Should Attend?

This course is intended for the following audience:

  • Production engineers
  • Facility engineers
  • Production and facility personnel
  • Production, facility, and petroleum managers
  • Service company personnel
  • Independent contractors and consultants


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

  • Introduction to petroleum production
    • Fluid flow near wellbore
    • Example problems using spreadsheets
  • Understanding near-wellbore effects
    • Physical reduction in pore and pore throat size
      • Scale formation due to pressure and temperature reduction
      • Precipitation due to reaction
      • Sludge formation
      • Fine migration
      • Scale formation due to fluid mixing
      • Asphaltene deposition
      • Perforation plugging
      • Solids invasion
      • Clay swelling
      • Adsorption and precipitation of large molecules
      • Wax formation
      • Stress-induced permeability change
    • Relative permeability reduction
      • Condensate banking
      • Water coning
      • Wettability change
      • Emulsion formation
      • Fluid saturation change and fluid blocking
      • Gas breakout
    • Skin effects and assessments
      • Hawkins formula
      • Different forms of skin
      • Skin factor due to damage
      • Skin factor due to partial completion and well geometry
      • Skin factor due to perforation
      • Skin factor in horizontal wells
    • Example problems using spreadsheets

Day 2

  • Pressure drop of single and two-phase flow in vertical, horizontal, and slanted pipe systems
    • Single-phase flow, incompressible, and Newtonian
    • Single-phase flow, compressible, and Newtonian
    • Two-phase flow
  • Diagnosis methods: production logging and well testing
    • Excessive water
    • Excessive gas
    • Low productivity
    • Injection wells
    • Well test methods
      • Build up
      • Drawdown
      • Fall-off
  • Methods of production enhancement
    • Chemical stimulation
    • Solvent stimulation
    • Hot oil stimulation
    • Acid stimulation
    • Fracture stimulation
    • Acid-fracture stimulation
  • Examples using spreadsheets

Course Materials:

The following course materials will be provided by Petrolects:

  • Course workbook, including example problems done on spreadsheet
This short course is provided with endorsement from the Petroleum Technology Transfer Council.
Copyright © 2013 by Petrolects, LLC.
All rights reserved.