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24-Pet-B1 Natural Gas Engineering: May 2014

Nivaar worked solution (AI-drafted; not reviewed by a licensed engineer)

  1. Question 1 Resistivity of a Log and Invasion Profiles
  2. Question 2 Factors Affecting Log Quality
  3. Question 3 Sources of Spontaneous Potential
  4. Question 4 Porosity-Log Response in Gas-Bearing Formations
  5. Question 5 Limitations of the Hingle Plot
  6. Question 6 Caliper-Derived Borehole Shape and Spectral Gamma Ray
  7. Question 7 SNP Environmental Correction, Order of Magnitude
  8. Question 8 SP/GR Lithology and Fluid-Resistivity Comparison
  9. Question 9 Water-Saturation Cutoff and Minimum Productive Resistivity
  10. Question 10 Humble's Correlation and Hydrocarbon Saturation vs. Depth
  11. Question 11 Recoverable Oil from ISF/Sonic and CNL/FDC Logs
  12. Question 12 Static SP — Ideal and Non-Ideal Shale Membrane

Start with Question 1 →

National Exams, 98-Pet-B1, Well Logging and Formation Evaluation — May 2014, 3 hours, closed book (calculators permitted), 12 questions, all marked, 100 marks total.

Reference texts: Bassiouni, Theory, Measurement, and Interpretation of Well Logs (SPE Textbook Series Vol. 4); Asquith & Krygowski, Basic Well Log Analysis, 2nd ed. (AAPG); Ellis & Singer, Well Logging for Earth Scientists, 2nd ed.; Schlumberger, Log Interpretation Charts / Log Interpretation Principles and Applications.