Earth Resources Laboratory: Recent submissions

Now showing items 277-279 of 456

    • Velocity Analysis of Multi-Receiver Full Waveform Acoustic Logging Data In Open and Cased Holes 

      Block, Lisa V.; Cheng, C. H.; Duckworth, Gregory L. (Massachusetts Institute of Technology. Earth Resources Laboratory, 1987)
      Average semblance and maximum-likelihood spectral analyses are applied to synthetic and field full waveform acoustic logging data to determine formation velocities. Of particular interest is the ability of these methods ...

    • Determining Shear Wave Velocities in Soft Marine Sediments 

      Meredith, J . A.; Cheng, C. H.; Wilkens, R. H. (Massachusetts Institute of Technology. Earth Resources Laboratory, 1987)
      The inversion technique presented in this volume (Cheng, 1987) that simultaneously inverts full waveform acoustic logs for shear wave velocity (V[subscript 3]) and compressional wave attenuation (Q[subscript p]) was applied ...

    • Experimental Determination of Elastic Anisotropy of Berea Sandstone, Chicopee Shale and Chelmsford Granite 

      La, Tien-when; Coyner, Karl B.; Toksoz, M. Nafi (Massachusetts Institute of Technology. Earth Resources Laboratory, 1985)
      We use the ultrasonic transmission method to measure P-, SH-, and SV-wave velocities for Chelmsford Granite, Chicopee Shale, and Berea Sandstone in different directions up to 1000 bars confining pressure. The velocity ...