CPG Advanced Professional Practice 3 — Questions and Answers
Question 1: A CPG working as an independent consultant is hired simultaneously by two companies evaluating competing bids on the same acreage. What is the correct professional response?
- Accept both engagements and keep each client's data separate
- Disclose the conflict to both clients and withdraw from one or both engagements (Correct answer)
- Complete both evaluations using only publicly available data
- Notify only the higher-paying client of the dual engagement
Correct answer: Disclose the conflict to both clients and withdraw from one or both engagements
Simultaneous representation of competing interests on the same property constitutes a conflict of interest requiring full disclosure and likely withdrawal.
Question 2: Which of the following best describes 'analogue data' as used in petroleum resource estimation?
- Seismic data collected using analog (non-digital) equipment
- Production and geological data from developed fields with similar characteristics used to calibrate estimates for undeveloped prospects (Correct answer)
- Geochemical analogs from laboratory experiments
- Historical well logs digitized from paper records
Correct answer: Production and geological data from developed fields with similar characteristics used to calibrate estimates for undeveloped prospects
Analogue data refers to performance data from producing fields with comparable geology used to support recovery factor and production profile estimates.
Question 3: Under AAPG's professional conduct standards, a member discovers a colleague has submitted a fictitious well log in a published study. The member should FIRST:
- Publicly refute the colleague's work on social media
- Contact the colleague privately to allow correction before escalating to AAPG Ethics Committee (Correct answer)
- Notify the publishing journal directly without contacting the colleague
- Take no action unless the study affects their own work
Correct answer: Contact the colleague privately to allow correction before escalating to AAPG Ethics Committee
AAPG ethics guidance recommends addressing misconduct by first contacting the individual, allowing opportunity for self-correction before formal reporting.
Question 4: A deterministic reserve estimate and a probabilistic estimate of the same accumulation yield different results. Which statement is MOST accurate?
- Deterministic methods are always more conservative and should be preferred
- Probabilistic methods are only valid for offshore fields
- Both methods are acceptable; differences arise from how uncertainty is handled, and results should be reconciled (Correct answer)
- Regulators require deterministic estimates for all SEC filings
Correct answer: Both methods are acceptable; differences arise from how uncertainty is handled, and results should be reconciled
SPE-PRMS accepts both approaches; differences typically reflect how uncertainty ranges are treated, and reconciliation between methods is a professional best practice.
Question 5: What is the primary purpose of a 'material balance' analysis in reservoir engineering as used by petroleum geologists?
- To balance exploration spending against production revenue
- To estimate original hydrocarbons in place using pressure, volume, and production data as a dynamic check (Correct answer)
- To verify that drilling costs match budget allocations
- To balance carbon emissions from field operations
Correct answer: To estimate original hydrocarbons in place using pressure, volume, and production data as a dynamic check
Material balance uses pressure-production-volume relationships to dynamically estimate original oil or gas in place and validate static geological models.
Question 6: When must a petroleum geologist update a previously issued reserve report?
- Only when production begins at a new well
- When new information materially changes the technical basis or when required by the client or regulatory authority (Correct answer)
- At fixed five-year intervals regardless of new data
- Only if the original estimate was determined to be fraudulent
Correct answer: When new information materially changes the technical basis or when required by the client or regulatory authority
Professional standards require reserve reports to be updated whenever new material data changes the technical basis or when clients or regulators require revision.
Question 7: A petroleum geologist is asked to evaluate an international project in a country with lax environmental regulations. Which professional consideration applies?
- Local regulations always govern, so reduced standards may be applied
- International professional standards and host-country laws both apply; higher standards should prevail where conflicts exist (Correct answer)
- Only the client's corporate standards apply overseas
- Environmental standards are outside the scope of a CPG's professional responsibility
Correct answer: International professional standards and host-country laws both apply; higher standards should prevail where conflicts exist
AAPG ethics and international best practices require applying the higher of host-country or professional standards when evaluating international projects.
CPG Advanced Professional Practice 3
A CPG working as an independent consultant is hired simultaneously by two companies evaluating competing bids on the same acreage.
What is the correct professional response?