Which mineral among the following is NOT one of the three main physical properties of rocks logged by wirelines?

Which mineral among the following is NOT one of the three main physical properties of rocks logged by wirelines?

• A. Electrical
• B. Nuclear
• C. Acoustic
• D. Magnetic

Answer: (D)

In borehole wireline logging, the rocks are characterized by three main physical responses: electrical behavior (how rocks conduct electricity, captured as resistivity), nuclear or natural radioactivity (gamma-ray response from elements like potassium, uranium, and thorium), and acoustic response (sound wave velocity and attenuation that reflect rock stiffness and porosity). Magnetic properties are not part of this standard trio; magnetism is not routinely logged as one of the three primary wireline measurements, though magnetic data can be obtained separately with dedicated instruments. So, the property that does not belong among the three main wireline logs is Magnetic.

In borehole wireline logging, the rocks are characterized by three main physical responses: electrical behavior (how rocks conduct electricity, captured as resistivity), nuclear or natural radioactivity (gamma-ray response from elements like potassium, uranium, and thorium), and acoustic response (sound wave velocity and attenuation that reflect rock stiffness and porosity). Magnetic properties are not part of this standard trio; magnetism is not routinely logged as one of the three primary wireline measurements, though magnetic data can be obtained separately with dedicated instruments. So, the property that does not belong among the three main wireline logs is Magnetic.