Spontaneous Potential Theory

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Taylor

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Quizzes Created: 9 | Total Attempts: 3,952

Questions: 15 | Attempts: 731 | Updated: Mar 21, 2023

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Spontaneous potential as discussed is the potential difference that occurs naturally in the earth. If you plan to drill into the earth’s crust you need to have adequate knowledge on this theory. Do you believe you understand it clearly? If so then take up the test below and see if the results are in your favor. All the best!

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Current Version
Mar 21, 2023

Quiz Edited by
ProProfs Editorial Team
Jul 30, 2014

Quiz Created by
Taylor

Spontaneous Potential Theory

The primary objective of logging the Spontaneous Potential (SP) is to determine:

Which of the following statements is true?

A majority of the deflection observed on an SP log is the result of

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

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

The SP measurement is taken as a potential difference between:

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

Under what conditions is an electrokinetic potential created as fluid flows through the mud cake?

Hydrostatic pressure is less in the formation than in the borehole

Ionic exchange resulting from a pressure differential between the formation and the borehole produces an electromotive force called the:

Select all of the potential applications of the SP measurement.

The spontaneous potential tool is designed to measure a natural – or spontaneous – current flow in the borehole and formation resulting from ionic imbalances that exist between different subsurface fluids and ionic movement near the borehole/formation interface.

The exchange in ions (primarily chlorine, Cl^-, and sodium, Na⁺) between fluids of different salinities creates a _____ drop in a fluid-filled borehole.

In which of the following conditions is the SP response not valid?

Spontaneous Potential Theory

The primary objective of logging the Spontaneous Potential (SP) is to determine:

Which of the following statements is true?

A majority of the deflection observed on an SP log is the result of

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

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

The SP measurement is taken as a potential difference between:

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

Under what conditions is an electrokinetic potential created as fluid flows through the mud cake?

Hydrostatic pressure is less in the formation than in the borehole

Ionic exchange resulting from a pressure differential between the formation and the borehole produces an electromotive force called the:

Select all of the potential applications of the SP measurement.

The spontaneous potential tool is designed to measure a natural – or spontaneous – current flow in the borehole and formation resulting from ionic imbalances that exist between different subsurface fluids and ionic movement near the borehole/formation interface.

The exchange in ions (primarily chlorine, Cl-, and sodium, Na+) between fluids of different salinities creates a _____ drop in a fluid-filled borehole.

In which of the following conditions is the SP response not valid?

The exchange in ions (primarily chlorine, Cl^-, and sodium, Na⁺) between fluids of different salinities creates a _____ drop in a fluid-filled borehole.