Spontaneous Potential Log Quiz
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Questions and Answers

What does the SP log detect in drilling muds or air-filled holes?

  • Formation-water resistivity and borehole diameter
  • Invasion and shale content
  • Volume of shale in impermeable beds and hydrocarbon content
  • Permeable beds and boundaries of permeable beds (correct)

    • What does SSP stand for in the context of SP measurement?

  • Static Spontaneous Potential (correct)
  • Standard Shale Porosity
  • Subsurface Seismic Processing
  • Saturated Sandstone Permeability

    • What is the Normal SP in terms of the ratio between Rmf and Rw?

  • $\frac{Rmf}{Rw}$ (correct)
  • $Rw + Rmf$
  • $\frac{Rw}{Rmf}$
  • $Rmf - Rw$

    • What influences the SP measurement?

    <p>Bed thickness and hydrocarbon content</p> Signup and view all the answers

    What is necessary for determining accurate values of Rw and volume of shale?

    <p>$SSP$ determined by formula or by chart</p> Signup and view all the answers

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