Q) The resistivity and acoustic imaging logs can provides a picture of borehole

Question

Q) The resistivity and acoustic imaging logs can provides a picture of borehole wall:
A) Amplitude and travel time changes, respectively
B) Resistivity and impendance changes, respectively
C) Resistivity and density change, respectively


Q) The resistivity and acoustic imaging logs can provides a picture of borehole wall:
A) Amplitude and travel time changes, respectively
B) Resistivity and impendance changes, respectively
C) Resistivity and density change, respectively



A) Amplitude and travel time changes, respectively
B) Resistivity and impendance changes, respectively
C) Resistivity and density change, respectively

Explanation / Answer

Resistivity imaging tools provide an image of the wellbore wall based on resistivity contrasts and the acoustic imaging tool uses the pulsed acoustic energy and by this it can image the borehole walls in presence of opaque drilling mud, it is also known as Borehole televiewers. The acoustic imaging tool provides the density changes by using acoustic energy. In acoustic imaging tool borehole breakouts are typically interpreted from acoustic image log data using the borehole radius image in combination with images of the reflected amplitudes. The drilling induced and natural fractures are primarly observed on the reflected amplitude image. Both natural and drilling induced fractures are poor reflectors of acoustic energy.

So the Option is (C)

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