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9 - Porosity

Alternate Porosity Models Based on Individual Log Curves | Estimated Time : 1 hr

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COURSE SUMMARY

This quantitative course continues coverage of basic petrophysical analysis with a review of alternate porosity models based on individual log curves. While the shale corrected density neutron complex lithology porosity model is much preferred, there will be occasions when another model may be required, due to lack of data or bad hole conditions. You will learn how to determine mineral, water, and shale properties required for these models, and how to handle gas corrections. A comprehensive quantitative example and case history illustrate the methods.

WHO SHOULD TAKE THIS C0URSE

Managers, geologists, log analysts, geophysicists, reservoir engineers, completion engineers, stimulation engineers, and university / tech school students who wish to become proficient in petrophysical analysis or who need to manage or make use of petrophysical results will benefit from this course.

BENEFITS

  • Provides understanding of the "single-log" porosity models, based on sonic, density, or neutron logs
  • Provides step-by-step procedures for calculations
  • Gives "computer-ready" mathematics
  • Provides exercises and worked examples for further study

LECTURE CONTENTS

  • Shale corrected sonic log model
  • Shale corrected density log model
  • Shale corrected neutron log model
  • Nuclear magnetic resonance porosity
  • Maximum porosity model
  • Water resistivity from DST or water catalog data
  • Exercise 2
  • Case History

ESTIMATED TIME: 1 hr

PREREQUISITES

Crain's Integrated Petrophysics, Lectures 1 to 8 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
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  Course Companion
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  Alternate RW Models
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  Visual Analysis for Exercise #2
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  Report of Exercise 2 & Quiz 9
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  Quiz
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  Course Feedback
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  Completion Certificate
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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.

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