Onshore Survey Permitting and Positioning Quiz
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Questions and Answers

What does a Fold of one mean in the context of seismic surveys?

  • Each sub-surface point is sampled multiple times
  • Each sub-surface point is sampled once (correct)
  • There are no shot points adjacent to the receiver line
  • The receivers are positioned randomly

    • Moving from 2D to 3D in a seismic survey means:

  • The area within the subsurface is now circular
  • The fold decreases to zero
  • There is no need for shot lines
  • The area within the subsurface illuminated by the survey is now square (correct)

    • What does the Crossline direction refer to in a seismic survey?

  • The direction perpendicular to the shot line
  • An arbitrary direction chosen for data collection
  • The direction orthogonal to the Inline direction (correct)
  • The direction parallel to the receiver line

    • How is the Inline Fold increased in a seismic survey?

    <p>By introducing more shot points in the Inline direction</p> Signup and view all the answers

    When areas of sub-surface illumination overlap in a seismic survey, what does it result in?

    <p>Increased Fold value</p> Signup and view all the answers

    What happens when common mid points are sampled twice in a seismic survey?

    <p>The Fold increases to two</p> Signup and view all the answers

    How does adding more shot and receiver swaths impact fold in a seismic survey?

    <p>Increases fold value</p> Signup and view all the answers

    In a seismic survey, what does a Shot line refer to?

    <p>A line connecting shot points with receivers</p> Signup and view all the answers

    What term is used for the orientation orthogonal to the Inline in a seismic survey?

    <p>'Crossline' direction</p> Signup and view all the answers

    'Shotpoints' and 'receivers' are terms commonly associated with which phase of a seismic survey?

    <p>'Data acquisition'</p> Signup and view all the answers

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