ERL Industry Consortia Technical Reports: Recent submissions

Now showing items 253-255 of 456

    • Estimating The Elastic Moduli Of Transversely Isotropic Formations 

      Ellefsen, K. J.; Cheng, C. H. (Massachusetts Institute of Technology. Earth Resources Laboratory, 1989)
      Using acoustic logging data, we develop a method of estimating the horizontal shear modulus C[subscript 66]) of a transversely isotropic formation with its axis of symmetry parallel to that of the borehole. The data for ...

    • Stoneley Wave Propagation In A Fluid-Filled Borehole With A Vertical Fracture 

      Tang, X. M.; Cheng, C. H.; Toksoz, M. N. (Massachusetts Institute of Technology. Earth Resources Laboratory, 1989)
      The propagation of Stoneley waves in a fluid-filled borehole with a vertical fracture is investigated both theoretically and experimentally. The borehole propagation excites fluid motion in the fracture and the resulting ...

    • Wave Propagation In A Fluid-Filled Fracture-An Experimental Study 

      Tang, X. M.; Cheng, C. H. (Massachusetts Institute of Technology. Earth Resources Laboratory, 1989)
      A laboratory experimental study has been carried out to investigate the mode trapping characteristics of a fluid-filled fracture between two elastic solids. Using a small circular cylindrical receiver of 2.7 mm diameter, ...