ERL Industry Consortia Technical Reports: Recent submissions

Now showing items 7-9 of 456

    • Shear Wave Logging In Semi-Infinite Saturated Porous Formations 

      Schmitt, D. P.; Zhu, Y.; Cheng, C. H. (Massachusetts Institute of Technology. Earth Resources Laboratory, 1987)
      Recent theoretical and experimental studies have demonstrated the interest of using non-axisymmetric sources, such as dipole and quadrupole, to record shear wave events in any kind of formation (fast or slow). Non-axisymmetric ...

    • Fracture Characterization From Attenuation And Generation Of Tube Waves 

      Hardin, E. L.; Cheng, C. H.; Paillet, F. L.; Mendelson, J. D. (Massachusetts Institute of Technology. Earth Resources Laboratory, 1986)
      Results are presented from experiments carried out in conjunction with the USGS at the Hubbard Brook Experimental Forest near Mirror Lake, New Hampshire. The study focuses on our ability to obtain orientation and ...

    • Free Pipe Effects On Guided Wave Propagation 

      Burns, D. R.; Cheng, C. H. (Massachusetts Institute of Technology. Earth Resources Laboratory, 1986)
      The effects of free pipe on the pseudo-Rayleigh and Stoneley waves are studied by introducing a fluid annulus between the casing and cement layers of a cased borehole model. The existence of a fluid annulus region results ...