Joint Interpretation of Magnetic Resonance Sounding and Borehole NMR Data

The main objective of the joint research project between the Technical University of Berlin and Schlumberger Water Services was to assess how high resolution borehole NMR can be used to enhance the interpretation of Magnetic Resonance Sounding (MRS) measurements. Therefore a profile measurement on a ground water test site in the desert of Abu Dhabi was carried out. With new and extended processing and inversion techniques we were able to interpret the well near MRS soundings together with the information from the borehole. On the one hand the borehole data was used to directly improve the inversion by implementing the resistivity-log data. On the other hand we could verify the results of our surface measurements when comparing the inverted water content and the belonging decay times with the equivalent CMR Bin porosity classes from the borehole.