ERL Industry Consortia Technical Reports: Recent submissions

Now showing items 250-252 of 456

    • Permeability Estimation From Velocity Anisotropy In Fractured Rock 

      Gibson, Richard L., Jr.; Toksoz, M. Nafi (Massachusetts Institute of Technology. Earth Resources Laboratory, 1989)
      Cracks in a rock mass subjected to a uniaxial stress will be preferentially closed depending on the angle between the fracture normal and the direction of the applied stress. If the prestress fracture distribution is ...

    • Experimental Verification of Acoustic Waveform and VSP Seismic Tube Wave Measurements of Fracture Permeability 

      Paillet, Frederick L.; Cheng, C. H.; Hsieh, Paul (Massachusetts Institute of Technology. Earth Resources Laboratory, 1987)
      A variety of established and experimental geophysical techniques was used to measure the vertical distribution of fracture permeability in a 229-meter deep borehole penetrating schist and quartz monzonite near Mirror Lake, ...

    • Full Waveform Inversion of P Waves for V[subscript s] and Q[subscript p] 

      Cheng, C. H. (Massachusetts Institute of Technology. Earth Resources Laboratory, 1987)
      We present an indirect method of determining shear wave velocities from full waveform acoustic logs based on the inversion of the spectral ratio of the P-wave trains at two source-receiver separations. This method ...