ERL Industry Consortia Technical Reports: Recent submissions

Now showing items 310-312 of 456

    • Finite Difference Synthetic Acoustic Logs 

      Stephen, R. A.; Pardo-Casas, F.; Cheng, C. H. (Massachusetts Institute of Technology. Earth Resources Laboratory, 1983)
      Synthetic seismograms of elastic wave propagation in a fluid-filled borehole were generated using both the finite difference technique and the discrete wavenumber summation technique. The latter is known to be accurate for ...

    • Effects of Casing on Full Waveform Acoustic Logs 

      Tubman, Kenneth M.; Cheng, C. H.; Toksoz, M. Nafi (Massachusetts Institute of Technology. Earth Resources Laboratory, 1983)
      A general expression is derived for the dispersion relations and the impulse response of a radially layered borehole. The. model geometry consists of a central fluid cylinder surrounded by an arbitrary number of solid ...

    • Determination of Shear Wave Velocities in "Slow" Formations 

      Cheng, C. H.; Toksoz, M. Nafi (Massachusetts Institute of Technology. Earth Resources Laboratory, 1983)
      Direct determination of formation shear wave travel time is impossible in "slow" formations where the shear wave velocity is lower than the borehole fluid (mud) velocity. However, the Stoneley waves in these formations are ...