Practice Test Geeks(API) American Petroleum Institute Certification Practice Test
← All API Flashcard Decks

Drilling and Production Flashcards

7 cards from real API practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Drilling and Production flashcards as text

  1. What is 'gas lift' as an artificial lift method in oil production?

    Answer: Injecting compressed gas down the annulus or tubing to aerate and lighten the produced fluid column

    Gas lift injects compressed gas into the tubing or annulus to reduce the density of the fluid column, enabling reservoir pressure to lift fluids to surface.

  2. In well logging, what does 'LWD' stand for and what advantage does it offer?

    Answer: Logging While Drilling — provides real-time formation data while the well is being drilled

    LWD (Logging While Drilling) acquires formation evaluation data in real time as the bit advances, enabling immediate decisions about wellbore trajectory and formation tops.

  3. What is the significance of the 'API RP 53' recommended practice in drilling?

    Answer: It provides recommendations for BOP equipment systems for drilling wells

    API RP 53 provides recommended practices for blowout prevention equipment systems for drilling wells, covering installation, testing, and inspection.

  4. What is 'skin factor' (S) in reservoir engineering, and what does a positive value indicate?

    Answer: A dimensionless number quantifying near-wellbore damage; positive values indicate reduced flow capacity

    Skin factor quantifies the additional pressure drop near the wellbore due to damage or improvement; a positive skin indicates formation damage that restricts flow.

  5. Which API specification covers requirements for wellhead and tree equipment used in surface and subsea applications?

    Answer: API Spec 6A

    API Specification 6A establishes requirements for wellhead and tree equipment including flanges, valves, and chokes used in oil and gas production.

  6. In production operations, what does 'water cut' (WC) measure?

    Answer: The fraction of produced water relative to total produced liquid volume

    Water cut is the ratio of produced water to total produced liquid (water plus oil), expressed as a percentage, and increases as a reservoir matures.

  7. What is the purpose of a 'formation integrity test' (FIT) or 'leak-off test' (LOT) during drilling?

    Answer: To determine the maximum mud weight the formation can support before fracturing

    A LOT or FIT pressurizes the wellbore below a new casing shoe to determine the fracture gradient and confirm the safe maximum mud weight window for the next interval.