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Spontaneous Potential (SP) Logging Quiz

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Questions and Answers

What is the total SP potential measured in the borehole?

Etotal (correct)

Which component of the total SP potential exists due to the flow of an electrolyte through a nonconductive medium?

Etotal

Ek (correct)

What does the SP log measure?

Frequency of electrical potential in the wellbore

AC voltage difference between surface and borehole electrodes

Resistance of the reservoir rocks

D.C. voltage difference between surface and borehole electrodes (correct)

Which learning outcome involves applying corrections needed for SP logs before using them for interpretation?

<p>LO2: Apply corrections needed for SP logs before using them for interpretation</p> Signup and view all the answers

What is the SP log considered to be in terms of its age?

<p>Still common</p> Signup and view all the answers

Study Notes

SP Logging

The total SP potential measured in the borehole is comprised of several components.

Components of SP Potential

One component of the total SP potential exists due to the flow of an electrolyte through a nonconductive medium.

SP Log Measurements

The SP log measures the spontaneous potential difference between the borehole and a remote reference electrode.

SP Log Corrections

Learning outcome: Applying corrections needed for SP logs before using them for interpretation.

Age of SP Log

The SP log is considered a mature logging technique, meaning it is an older method.

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Description

Test your knowledge of spontaneous potential (SP) logging with this quiz. Learn about the physical principles behind SP logging operation, corrections needed for SP logs, and their interpretation.