Week 2 Halliburton Ttp

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    Acoustic porosity services are NOTcapable of recording acoustic waves in

    • Air-drilled holes
    • Oil-based mud
    • Freshwater-based mud
    • Saltwater-based mud
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About This Quiz

This quiz will deal with a few different components in the study of sound, with specific reference to wave velocity, acoustic porosity, transmitters, Delta-T, P-wave, voltage, vertical resolution and electrode devices. See how much you know about it!

Week 2 Halliburton Ttp - Quiz

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  • 2. 

    Compressional wave velocity is a function of the elastic properties and bulk density of the medium through which it travels.

    • True

    • False

    Correct Answer
    A. True
  • 3. 

    Acoustic porosity provides a measure of the effective porosity of the formation.

    • True

    • False

    Correct Answer
    A. True
  • 4. 

    Which of the following elements are primarily responsible for natural gamma radiation?

    • Thorium, potassium, and uranium

    • Potassium, uranium, and calcium

    • Americium, uranium, and potassium

    • Polonium, potassium, and thorium

    • Uranium, thorium, and americium

    Correct Answer
    A. Thorium, potassium, and uranium
  • 5. 

    The SP measurement is taken as a potential difference between:

    • A downhole electrode and a current return electrode, both located on the tool.

    • A downhole electrode and a reference electrode at the surface.

    • A downhole electrode and casing.

    • A downhole electrode and the wireline.

    Correct Answer
    A. A downhole electrode and a reference electrode at the surface.
  • 6. 

    Which of the following is not considered a body wave?

    • Shear wave

    • Compressional wave

    • Stoneley wave

    Correct Answer
    A. Stoneley wave
  • 7. 

    The distance between transmitter and receiver is known as:

    • Offset

    • Spacing

    • Arrival

    Correct Answer
    A. Offset
  • 8. 

    Which of the following is the most efficient element at slowing neutrons?

    • Oxygen

    • Hydrogen

    • Helium

    Correct Answer
    A. Hydrogen
  • 9. 

    Compressional wave velocity is a function of the elastic properties and bulk density of the medium through which it travels.

    • True

    • False

    Correct Answer
    A. True
  • 10. 

    Which wave is the first to be detected at the receiver?

    • Leaky mode

    • Stoneley

    • Compressional

    • Shear

    Correct Answer
    A. Compressional
  • 11. 

    Transmitter-to-receiver distance is known as:

    • Offset

    • Spacing

    • Delta T

    • Arrival

    Correct Answer
    A. Offset
  • 12. 

    Shear wave energy causes particle deformation that is __________ to the direction of energy propagation.

    • Perpendicular

    • Parallel

    Correct Answer
    A. Perpendicular
  • 13. 

    Half-life is defined as:

    • The period of time needed for radioactivie material to gain one-half of its radioactivity.

    • The period of time required for a radioactive material to lose one-half of its radioactivity.

    • The period of time required before radiation emitted from radioactive material is at a safe level.

    Correct Answer
    A. The period of time required for a radioactive material to lose one-half of its radioactivity.
  • 14. 

    Which of the following zones would show no deflection on the SP curve?

    • Rmf < Rw

    • Rmf > Rw

    • Rmf = Rw

    Correct Answer
    A. Rmf = Rw
  • 15. 

    What type of wave travels fastest through a formation?

    • Shear

    • Mud

    • Surface

    • Compressional

    Correct Answer
    A. Compressional
  • 16. 

    Neutrons lose more energy in which type of collision?

    • Glancing

    • Direct

    • Static

    Correct Answer
    A. Direct
  • 17. 

    Count rate for the DSNT thermal neutron detector is defined as:

    • Number of thermal neutron multiplied by 100

    • Number of epithermal neutrons multiplied by 100

    • Number of thermal neutrons detected in one second

    • Number of epithermal neutrons detected in one second

    Correct Answer
    A. Number of thermal neutrons detected in one second
  • 18. 

    The Full Wave Sonic tool is NOTcapable of recording acoustic waves in _______________.

    • Freshwater-based mud

    • Oil-based mud

    • Air-drilled holes

    • Cased hole

    Correct Answer
    A. Air-drilled holes
  • 19. 

    Transmitter-to-receiver distance is known as:

    • Arrival

    • Delta T

    • Spacing

    • Offset

    Correct Answer
    A. Offset
  • 20. 

    The X-signal becomes significant and skin effect becomes a problem in:

    • Low resistivity formations

    • High resistivity formations

    Correct Answer
    A. Low resistivity formations
  • 21. 

    Which of the following statements is true?

    • Electrokinetic processes relate to the movement of fluid at the borehole/formation interface, while electrochemical processes related to ionic imbalances between fluids.

    • Electrokinetic processes relate to ionic imbalances between fluids, while electrochemical processes relate to the movement of fluid at the borehole/formation interface

    Correct Answer
    A. Electrokinetic processes relate to the movement of fluid at the borehole/formation interface, while electrochemical processes related to ionic imbalances between fluids.
  • 22. 

    A cycle skip is when P-wave first arrivals at two receivers are selected on different cycles of the waveform.

    • True

    • False

    Correct Answer
    A. True
  • 23. 

    The physical law which states that resistivity is directly proportional to voltage and inversely proportional to current is:

    • Ampere’s law

    • Ohm’s law

    • Faraday’s law

    • Mitchell’s law

    Correct Answer
    A. Ohm’s law
  • 24. 

    Which type of wave is the first to arrive at the receiver?

    • Shear

    • Mud

    • Stoneley

    • Compressional

    Correct Answer
    A. Compressional
  • 25. 

    In which of the following conditions is the SP response valid?

    • Oil-based mud

    • Water-based mud

    • Air-drilled holes

    • Cased hole

    Correct Answer
    A. Water-based mud
  • 26. 

    The Full Wave Sonic uses a monopole transmitter to convert electrical energy to mechanical energy.

    • True

    • False

    Correct Answer
    A. True
  • 27. 

    Which of the following best describes the process by which a gamma ray is detected?

    • A gamma ray interacts with the scintillation crystal to produce a small pulse of light. This light pulse enters the photo-multiplier tube and strikes a photo-sensitive cathode, emitting electrons. These electrons are multiplied as the avalanche through a series of dynodes, resulting in an electrical pulse that represents one gamma ray detected.

    • A gamma ray interacts with the scintillation crystal to produce electrons. These electrons enter the photo-multiplier tube and strike a photo-sensitive cathode, emitting a small pulse of light. This pulse of light is amplified as it passes through a series of dynodes, resulting in an electrical pulse that represents one gamma ray detected.

    Correct Answer
    A. A gamma ray interacts with the scintillation crystal to produce a small pulse of light. This light pulse enters the photo-multiplier tube and strikes a photo-sensitive cathode, emitting electrons. These electrons are multiplied as the avalanche through a series of dynodes, resulting in an electrical pulse that represents one gamma ray detected.
  • 28. 

    Which of the following lithologies would likely result in the highest gamma ray count rate at a detector?

    • Sandstone

    • Limestone

    • Shale

    • Dolomite

    Correct Answer
    A. Shale
  • 29. 

    Halliburton tools are calibrated at the wellsite using:

    • The API test pit

    • Uranium blankets

    • Halliburton test wells

    • Thorium blankets

    Correct Answer
    A. Thorium blankets
  • 30. 

    What effect do slots cut into the tool housing have on tool mode waves?

    • Increased velocity

    • Increased travel times

    • Decreased travel times

    • Decreased velocity

    Correct Answer
    A. Increased travel times
  • 31. 

    The minimum travel time from the transmitter to a receiver represents a:

    • Reflected wave

    • Totall refracted wave

    • Critically refracted wave

    Correct Answer
    A. Critically refracted wave
  • 32. 

    What effect do slots cut into the tool housing have on tool mode waves?

    • Increased velocity

    • Decreased travel times

    • Increased travel times

    • Decreased velocity

    Correct Answer
    A. Increased travel times
  • 33. 

    Hydrogen causes an energy loss of about __________ in each direct collision with a neutron.

    • 10%

    • 50%

    • 35%

    • 40%

    Correct Answer
    A. 50%
  • 34. 

    What type of detector is used in the NGRT, D4TG, and GTET?

    • Sodium iodide (NaI)

    • Bismuth germinate (BGO)

    • Cesium iodide (CsI)

    • Sodium chloride (NaCl)

    Correct Answer
    A. Sodium iodide (NaI)
  • 35. 

    Select all of the following that are considered body waves..

    • Mud Waves

    • Compressional Waves

    • Stoneley Waves

    • Leaky Mode

    • Shear Waves

    Correct Answer(s)
    A. Compressional Waves
    A. Shear Waves
  • 36. 

    Select all of the following that are considered body waves.

    • Shear Waves

    • Leaky Mode

    • Stoneley Waves

    • Compressional Waves

    • Mud Waves

    Correct Answer(s)
    A. Shear Waves
    A. Compressional Waves
  • 37. 

    The phenomenon by which the R-signal is no longer inversely proportional to resistivity in very low resistivity formations is known as:

    • Sonde error

    • Skin effect

    • Mutual coupling

    • Quadrature

    Correct Answer
    A. Skin effect
  • 38. 

    Which of the following is not a practical advantage of increasing offset between transmitter and receiver?

    • Potential for deeper depth of investigation beyond the altered zone

    • Enables accurate data acquisition in large diameter boreholes

    • Enables faster logging speeds

    Correct Answer
    A. Enables faster logging speeds
  • 39. 

    Compressional detla-T (Δtc) is proportional to the reciprocal of P-wave velocity.

    • True

    • False

    Correct Answer
    A. True
  • 40. 

    Which of the following is an example of a direct wave?

    • Mud wave

    • Stoneley wave

    • Shear wave

    • Compressional wave

    Correct Answer
    A. Mud wave
  • 41. 

    Which of the following three voltages induced in a receiver coil is undesirable and is not related to formation resistivity?

    • Mutual signal

    • R-signal

    • X-signal

    Correct Answer
    A. Mutual signal
  • 42. 

    _______________ waves are surface waves created by the flexing of the interface between the borehole fluid and formation fluid.

    • Shear

    • Leaky mode

    • Compound

    • Stoneley

    Correct Answer
    A. Stoneley
  • 43. 

    For a body wave to be critically refracted, the velocity of acoustic energy through the formation must be _________ than the velocity of the fluid pressure wave through the borehole.

    • Faster

    • Slower

    Correct Answer
    A. Faster
  • 44. 

    The X-signal is ________ out of phase with the transmitter current.

    • 360°

    • 270°

    • 180°

    • 90°

    Correct Answer
    A. 270°
  • 45. 

    Stand-off is defined as:

    • Any physical separation between a detector and formation

    • The centralization of the detector in the borehole

    • The distance between the tool and the borehole wall

    Correct Answer
    A. Any physical separation between a detector and formation
  • 46. 

    Which of the following statements about the DSNT is true?

    • The larger the hole size, the higher the count rate detected

    • The larger the hole size, the lower the count rate detected

    • Large hole size has no effect on the count rate detected

    Correct Answer
    A. The larger the hole size, the lower the count rate detected
  • 47. 

    Ionic exchange across the boundary of a permeable formation and an adjacent shale produces an electromotive force in the formation called the:

    • Liquid junction potential

    • Membrane potential

    • Electrokinetic potential

    Correct Answer
    A. Membrane potential
  • 48. 

    The GAPI unit is defined as:

    • 100 % of the thorium blanket calibrator's value.

    • 1/200th the sensitivity of the standard tool as measured in the API test pit.

    • 1/2000th the difference in measured count rates between the high and low intervals of the API test pit.

    • 1/200th the difference in measured count rates between the high and low intervals of the API test pit.

    Correct Answer
    A. 1/200th the difference in measured count rates between the high and low intervals of the API test pit.
  • 49. 

    Ionic exchange across the interface between two fluids of different salinities produces an electromotive force in the formation called the:

    • Electrokinetic potential

    • Liquid juction potential

    • Membrane potential

    Correct Answer
    A. Liquid juction potential

Quiz Review Timeline (Updated): Mar 15, 2022 +

Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Mar 15, 2022
    Quiz Edited by
    ProProfs Editorial Team
  • Jul 23, 2011
    Quiz Created by
    Supercopjason
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