Wellhead / Christmas Tree Exam

15 Questions | Total Attempts: 665

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Wellhead / Christmas Tree Exam

Information about Wellheads on an offshore platform


Questions and Answers
  • 1. 
    The bottom MASTER Valve is the first valve in the vertical run of the tree.
    • A. 

      True

    • B. 

      False

  • 2. 
    The SSV is the _____________ valve in the vertical run of the tree
    • A. 

      First

    • B. 

      Second

    • C. 

      Third

  • 3. 
    The purpose of a wellhead is to...
    • A. 

      Furnishes surface control (manual and automatic)

    • B. 

      Provide containment of well fluids and provides downhole access for well servicing.

    • C. 

      Both answers are correct

  • 4. 
    The MAWP of a wellhead stands for...
    • A. 

      Maximum Allowable Working Pressure

    • B. 

      Minimum Allowable Working Pressure

    • C. 

      None of these

  • 5. 
    The MASTER Valve should...
    • A. 

      Never be used to shut the well in while the well is flowing unless it is an emergency.

    • B. 

      Always be left half open

    • C. 

      Never be opened

  • 6. 
    A wing valve should be closed first prior to closing the master valve in normal operations.
    • A. 

      False

    • B. 

      True

    • C. 

      It doesn't matter which valve is closed first

  • 7. 
    Primary use of _________ valve is to isolate the well pressure from the SSV  for repairs or, as a last resort, to stop the flow of the well stream when all other valves fail to do so.
    • A. 

      The Choke

    • B. 

      The Wing Valve

    • C. 

      The Master Valve

  • 8. 
    Wellheads offshore consist of...
    • A. 

      Plug Valves

    • B. 

      Gate Valves

    • C. 

      Ball Valves

  • 9. 
    The Wing Valve is on the horizontal run of the tree and is the first valve closed to manually shut in the reservoir flow.
    • A. 

      True

    • B. 

      False

  • 10. 
    The SSV Valve MUST close within 45 seconds of activating an ESD.
    • A. 

      True

    • B. 

      False

  • 11. 
    The Casing Valve is used to gain access to the wellhead for downhole well servicing. 
    • A. 

      True

    • B. 

      False

  • 12. 
    Primary use of the casing valves is to...
    • A. 

      Access to the different casing strings to monitor the pressure

    • B. 

      Allow wireline access to the SCSSV

    • C. 

      Shut in the wellhead in case of an emergency.

  • 13. 
    Under what condition would you NOT call the annular "casing pressure" casing pressure?
    • A. 

      When the well is used for gas lift

    • B. 

      When the casing pressure is 0 psi.

    • C. 

      When the casing pressure is 100 psi.

  • 14. 
    SITP is read at the pressure indicator located at the top of the tree when the well is shut in.
    • A. 

      True

    • B. 

      False

  • 15. 
    A _______________ is used to control the amount of reservoir flow allowed downstream of the wellhead.
    • A. 

      Neddle Valve

    • B. 

      Tree Cap

    • C. 

      Choke

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