Earth Resources Laboratory: Recent submissions

Now showing items 178-180 of 456

    • Determination Of The Orientation Of Open Fractures From Hydrophone VSP 

      Lee, Jung Mo; Toksoz, M. Nafi (Massachusetts Institute of Technology. Earth Resources Laboratory, 1995)
      Open fractures are of interest in many areas such as ground water contamination, hazardous waste disposal, oil and gas recovery, and geothermal energy extraction. In borehole geophysics and engineering, fractures are ...

    • Polarization Of Flexural Waves In An Anisotropic Borehole Model 

      Zhu, Zhenya; Cheng, C. H.; Toksoz, M. Nafi (Massachusetts Institute of Technology. Earth Resources Laboratory, 1995)
      Two modes of flexural waves can be generated by a dipole source in an anisotropic borehole. Their velocities are related to those of the fast and slow shear waves in the formation. The particle motions and the polarization ...

    • Decomposition And Particle Motion Of The Acoustic Dipole Log In Anisotropic Formation 

      Cheng, Ningya; Cheng, C. H. (Massachusetts Institute of Technology. Earth Resources Laboratory, 1995)
      For linear wave propagation in anisotropic media, the principle of superposition still holds. The decomposition of the acoustic dipole log is based on this principle. In the forward decomposition inline and crossline ...