17 - Russian Logs

Ancient- Style Logs run in former Soviet Union countries and China | Estimated Time : 40 mins

   Watch Promo


This course is an extension of Lecture 16 to include the ancient-style logs run in former Soviet Union countries and China from around 1932 to the present day. If you plan to explore or develop properties in these locations, you need to know the log types and analysis methods that can be used to define the play. You will learn the specialized skills used to translate the curve names and log presentations into more familiar terms as used in the West. Analysis techniques that are commonly used here can then be applied in the same manner as we would use for ancient logs (logs run prior to 1960). Examples and case histories illustrate the topic.


Petrophysicists, log analysts, geophysicists, geologists, reservoir engineers, and university / tech school students who wish to understand the wealth of useful information buried in ancient logs, especially those hidden away unused in existing well files.


  • Provides understanding of Russian-style logs (1932 - present)
  • Shows how to use these logs to explore in former Soviet Union countries
  • Gives calculations needed to perform Western-style analysis of these logs


  • Introduction To Russian-Style Logs
  • Electrical Survey (BKZ)
  • Normal Curve (Potential, PZ)
  • Lateral Curve (Gradient, GZ)
  • Russian Core Analysis
  • Gamma Ray Log (GK)
  • Neutron Log (NGK)
  • Density Log (GGK)
  • Sonic Log (AK)
  • Shale Volume, Porosity, Water Saturation
  • Case Histories
  • Exercise 17



Crain's Integrated Petrophysics, Lectures 1 to 13 and 16 OR equivalent background.

Basic understanding of geology and well logging.

Your Instructor

Ross Crain
Ross Crain

Mr Crain is a Professional Engineer with over 35 years of experience in reservoir description, petrophysical analysis, and management. He has been a specialist in the integration of well log analysis and petrophysics with geophysical, geological, engineering, and simulation phases of oil and gas exploration and exploitation, with widespread Canadian and Overseas experience. He has an Engineering degree from McGill University in Montreal and is a registered engineer in Alberta.

He wrote “The Log Analysis Handbook”, and he offers seminars, mentoring, or petrophysical consulting to oil companies, government agencies, and to consulting service companies around the world. Projects have spanned conventional and unconventional reservoirs in more than 40 countries.

Ross is credited with the invention of the first desktop log analysis system (LOG/MATE) in 1976, 5 years before IBM invented the PC. He continues to advise and train people on software design, implementation, and training. For his consulting practice, he uses his own proprietary software (META/LOG), and is familiar with most commercial systems.

He has won Best Paper Awards from CWLS and CSEG and has authored more than 30 technical papers. Mr Crain was installed as an Honorary Member of the Canadian Well Logging Society for his contributions to the science of well log analysis.

Ross's current interest is development of practical solutions for petrophysical analysis of all forms of unconventional reservoirs, determination of accurate mechanical properties of rocks for stimulation design, mentoring of both novices and experienced petrophysicists.

Class Curriculum

  Welcome to the course
Available in days
days after you enroll
  Russian Logs: Electrical Survey (BKZ) Normal (Potential PZ), Lateral (Gradient GZ)
Available in days
days after you enroll
  Russian Core Analysis
Available in days
days after you enroll
  Gamma Ray (GK), Neutron (NGK), Density (GGK), Sonic (AK)
Available in days
days after you enroll
  Reading Material
Available in days
days after you enroll
Available in days
days after you enroll
  Course Feedback
Available in days
days after you enroll
  Completion Certificate
Available in days
days after you enroll

Frequently Asked Questions

When does the course start and finish?
The course starts now and never ends! It is a completely self-paced online course - you decide when you start and when you finish.
How long do I have access to the course?
How does 12-month unlimited access sound? After purchase, you have unlimited 12 months to access to this course as often as you'd like - across any and all devices you own.
What if I am unhappy with the course?
We would never want you to be unhappy! If you are unsatisfied with your purchase, contact us in the first 30 days and we will give you a full refund.

Get started now!