ERL Industry Consortia Technical Reports: Recent submissions

Now showing items 202-204 of 456

    • Propagation Of Flexural Waves In An Azimuthally Anisotropic Borehole Model 

      Zhu, Zhenya; Cheng, C. H.; Toksoz, M. N. (Massachusetts Institute of Technology. Earth Resources Laboratory, 1993)
      Flexural waves generated by a dipole source have been studied theoretically and used to estimate the shear parameters of a formation. The basic principles and main properties of flexural waves propagating in a borehole ...

    • Stoneley Wave Propagation In Heterogeneous Permeable Porous Formations 

      Zhao, Xiaomin; Toksoz, M. N.; Cheng, C. H. (Massachusetts Institute of Technology. Earth Resources Laboratory, 1993)
      The propagation of borehole Stoneley waves is strongly correlated with permeability of the formation. Previous studies primarily focused on the situation where the permeability is homogeneously distributed in the formation. ...

    • Fourth-Order Finite Difference Acoustic Logs In A Transversely Isotropic Formation 

      Cheng, N. Y.; Cheng, C. H.; Toksoz, M. N. (Massachusetts Institute of Technology. Earth Resources Laboratory, 1993)
      In this paper we present a finite difference scheme for seismic wave propagation in a fluid-filled borehole in a transversely isotropic formation. The first-order hyperbolic differential equations are approximated ...