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24-Pet-B2 Oil and Gas Evaluation and Economics: May 2015

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

  1. Question 1 Terminology
  2. Question 2 Average Gas Velocity in a Flow Line
  3. Question 3 Gas Transmission Pipeline Diameter Sizing
  4. Question 4 Harmonic Decline from a ln(q)–Gp Crossplot
  5. Question 5 Well Pressure via Real Gas Pseudopressure — Two-Rate Superposition
  6. Question 6 Two Flow Tests — True Skin and Non-Darcy Factor
  7. Question 7 Deliverability from a Back-Pressure Test

Start with Question 1 →

National Exams May 2015, 98-Pet-B2, Natural Gas Engineering — 3 hours, closed book (non-communicating calculator permitted), 7 questions of 20 marks each. NOTES item 5 states only the first five questions in the answer book are marked; all 7 are solved.

Reference texts: Katz et al., Handbook of Natural Gas Engineering; Lee & Wattenbarger, Gas Reservoir Engineering (SPE Textbook Series Vol. 5); Ahmed, Reservoir Engineering Handbook, 5th ed.; Mohitpour et al., Pipeline Design and Construction, 3rd ed. (ASME Press); McCain, The Properties of Petroleum Fluids, 3rd ed.