ERL Industry Consortia Technical Reports: Recent submissions

Now showing items 304-306 of 456

    • Detection Of Subsurface Fractures And Permeable Zones By The Analysis Of Tube Waves 

      Beydoun, W. B.; Cheng, C. H.; Toksoz, M. N. (Massachusetts Institute of Technology. Earth Resources Laboratory, 1983)
      In Vertical Seismic Profiling tube waves are generated by compressional waves impinging on subsurface fractures or permeable zones. The amplitude of tube waves is dependent upon the formation permeability, the length of ...

    • Frequency and Scale Effects in the Optimization of Acoustic Waveform Logs 

      Paillet, Frederick L. (Massachusetts Institute of Technology. Earth Resources Laboratory, 1983)
      Previously formulated scaling laws relating acoustic waveforms in boreholes to frequency, tool size and borehole diameter were investigated by repeated logging of the same test interval with different frequencies, and ...

    • Acoustic Character Of Hydraulic Fractures In Granite 

      Paillet, Frederick I. (Massachusetts Institute of Technology. Earth Resources Laboratory, 1983)
      Hydraulic fractures in homogeneous granitic rocks were logged with conventional acoustic-transit-time, acoustic-waveform, and acoustic-televiewer logging systems. Fractured intervals ranged in depth from 45 to 570m. and ...