Now showing items 190-192 of 456

    • Untitled 

      Tezuka, Kazuhiko; Cheng, C. H.; Tang, X. M. (Massachusetts Institute of Technology. Earth Resources Laboratory, 1994)
      This paper describes a propagator matrix formulation for the problem of the Stoneley wave propagation in an irregular borehole. This is based on a simple one-dimensional theory that is possible for the low frequency ...
    • Borehole Wave Propagation In Isotropic And Anisotropic Media III: Anisotropic Formation 

      Cheng, Ningya; Cheng, C. H.; Toksoz, M. N. (Massachusetts Institute of Technology. Earth Resources Laboratory, 1994)
      In this paper we extend the 3-D finite difference method to simulate wave propagations in an anisotropic medium. The scheme is tested in the homogeneous medium. The finite difference results agree excellently with the ...
    • Borehole Wave Propagation In Isotropic And Anisotropic Media II: Isotropic Formation 

      Cheng, Ningya; Cheng, C. H.; Toksoz, M. N. (Massachusetts Institute of Technology. Earth Resources Laboratory, 1994)
      In this paper we apply the 3-D finite difference method to simulate borehole wave propagations in an isotropic formation. The scheme is tested in a fluid-filled borehole surrounded by the homogeneous elastic formation. ...