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14 - Rock Properties

Estimation of the Mechanical Properties of Rocks | Estimated Time : 1 hr 30 mins

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COURSE SUMMARY

This quantitative course covers the estimation of the mechanical properties of rocks, sometimes called elastic properties or elastic constants, from well log data. These properties are of vital importance in hydraulic fracture (stimulation) design and may influence horizontal well placement. You will learn the specialized skills needed to generate and quality control dynamic elastic properties, such as Shear Modulus, Poisson’s Ratio, and Young’s Modulus, using available well log and lab data. Examples and case histories illustrate the topic.

WHO SHOULD TAKE THIS C0URSE

Petrophysicists, log analysts, geophysicists, geologists, reservoir engineers, completion engineers, stimulation engineers, and university / tech school students who wish to understand the use of well log data in support of stimulation design.

BENEFITS

  • Provides understanding of the various elastic properties of rocks
  • Provides step-by-step procedures for calculations
  • Gives "computer-ready" mathematics
  • Provides exercises and worked examples for further study

LECTURE CONTENTS

  • Mechanical Properties Basics
  • Elastic Constants Theory
  • Log Editing Basics
  • Calculating Mechanical Properties Of Rocks
  • Shear Modulus N
  • Poisson's Ratio PR
  • Bulk Modulus Kb
  • Bulk Compressibility Cb
  • Biot’s Constant Alpha
  • Young's Modulus Y
  • Modulus of Compressibility Kc
  • Pore Compressibility Kp or Kf
  • Calibrating Dynamic to Static Constants
  • Case Histories
  • Exercise 14

ESTIMATED TIME : 1 hr 30 mins

PREREQUISITES

Crain's Integrated Petrophysics, Lectures 1 to 13 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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  Biot-Gassmann Equations
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  Example Logs
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  Reading Material
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  Quiz
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  Exercises
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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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