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Acoustic Impedance and Cement Bond Evaluation Quiz
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Acoustic Impedance and Cement Bond Evaluation Quiz

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Questions and Answers

What is the rule for Cement Bond Logging (CBL) regarding amplitude and attenuation?

  • Low amplitude and low attenuation indicate good cement.
  • High amplitude and high attenuation indicate good cement.
  • Low amplitude and high attenuation indicate good cement. (correct)
  • High amplitude and low attenuation indicate good cement.

    • How does the presence of fast formation arrivals impact the interpretation of Bond Index (BI) according to the text?

  • It affects the interpretation of Bond Index.
  • It nullifies the Bond Index as a measure of good cement.
  • It always indicates good cement.
  • It makes the Bond Index measurement unreliable. (correct)

    • What effect does acoustic impedance lower than expected have on Cement Bond Logging (CBL) amplitude?

  • Negates the CBL amplitude readings.
  • Increases the amplitude. (correct)
  • Has no effect on the amplitude.
  • Decreases the amplitude.

    • Which type of casing arrival indicates good cement in Variable Density Log (VDL)?

    <p>Weak casing arrival and strong formation arrival.</p> Signup and view all the answers

    How does the presence of a dry microannulus affect Cement Bond Logging?

    <p>Has no impact on CBL results.</p> Signup and view all the answers

    What is the primary limitation mentioned when dealing with low acoustic impedance cement?

    <p>Increased attenuation compared to conventional weight cement.</p> Signup and view all the answers

    In Cement Bond Logging, what parameter makes quantitative evaluation from CBL amplitude nearly impossible?

    <p>Fluid channel presence.</p> Signup and view all the answers

    How does Ultrasonic Sonic Imager Tool (USIT) data contribute to cement evaluation?

    <p>It enhances the evaluation of cement job data.</p> Signup and view all the answers

    What is the primary advantage mentioned for Cement Bond Logging (CBL-VDL) in the text?

    <p>Works with a wide range of fluid densities</p> Signup and view all the answers

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