Question 1) Explain the DENSITY OR NEUTRON LOG with reference to principles, Tools, log representation, units of measurement, calibration, environmental effects and applications.
Question 2)a) Describe the physical principle of Litho-Density Tool.
b) Explain the environmental effects on the modern Induced Gamma Ray spectra spectrometry.
Question 3) Describe why and how modern BHC sonic tool was developed adding a note on derivation of Wyllie’s formula for porosity.
Question 4) Write short notes on:
a) Porosity and gas indications from TDT log.
b) Elastic parameters from sonic logs.
c) Cement Bonds Log (CBL).
d) Schlumberger Litho-Density Tool.
e) Attenuation of Sonic wave in cased hole.
Question 5) Describe the measurement technique of EPT log and add a note on its applications.
Question 6) Explain the principles of Nuclear Magnetic Log and add a note on its method of measurements.
Question 7) Explain the following:
a) Gas detection from overlays.
b) Quantitative interpretation of acoustic images.
c) Borehole Televiewer Tool.
d) Depth of Investigation and vertical resolution of EPT log.
e) Uses of different cross-plots
Question 8) Write detail notes on the following:
a) Proton Precession magnetometer.
b) Eh-pH as the exploration tool.
c) Distinguish between surface and body waves.
d) Poisson’s ratio and its importance.
e) Tidal correction in gravity method.