Earth Resources Laboratory: Recent submissions

Now showing items 295-297 of 456

    • Field Test of a Low-Frequency Sparker Source for Acoustic Waveform Logging 

      Paillet, Frederick L. (Massachusetts Institute of Technology. Earth Resources Laboratory, 1984)
      Low-frequency acoustic-energy sources for waveform logging have important applications in: 1) Verifying theoretical calculations; 2) generating tube waves in large-diameter boreholes; and 3) providing larger sample volumes ...

    • Analysis of Full Waveform Acoustic Logging Data in "Soft" Formations 

      Barton, C.; Cheng, C. R.; Toksoz, M. N. (Massachusetts Institute of Technology. Earth Resources Laboratory, 1984)
      Direct recording of formation shear wave travel time is not possible in "soft" formations where the shear velocity is lower than the borehole fluid velocity. The borehole Stoneley wave is quite sensitive to changes in ...

    • Applications of Finite Difference Synthetic Acoustic Logs 

      Stephen, R. A.; Pardo-Casas, F. (Massachusetts Institute of Technology. Earth Resources Laboratory, 1984)
      Finite difference synthetic acoustic logs are suitable for studying wave propagation in vertically varying boreholes and in boreholes with continuously varying properties. Snapshots for the traditional smooth bore in a ...