Earth Resources Laboratory: Recent submissions

Now showing items 163-165 of 456

    • Off-Center Monopole And Dipole Sources In Fluid-Filled Boreholes 

      Tadeu, Antonio J. B.; Toksoz, M. Nafi; Kausel, Eduardo (Massachusetts Institute of Technology. Earth Resources Laboratory, 1996)
      A variety of seismic testing techniques rely on the use of seismic sources, detectors, or both, placed at some depth below the ground surface; these are often installed within fluid-filled boreholes. The interpretation ...

    • Effects Of A Borehole Environment And Residual Hydrocarbon On Stoneley Wave Amplitude And Reflectivity 

      Tao, Guo; Cheng, C. H. (Massachusetts Institute of Technology. Earth Resources Laboratory, 1996)
      In recent years, borehole Stoneley wave amplitude and reflectivity have been used for estimating formation permeability based on the strong correlation between Stoneley wave attenuation, reflectivity and formation fluid ...

    • Flexural Waves In An Anisotropic Hard Formation Borehole Model 

      Zhu, Zhenya Y.; Cheng, Arthur C. H.; Toksoz, M. Nafi (Massachusetts Institute of Technology. Earth Resources Laboratory, 1996)
      To investigate the propagation of flexural waves in a borehole surrounded by an azimuthally anisotropic hard formation, we made an ultrasonic borehole model of Delabole slate with very strong anisotropy. The axial and ...