ERL Industry Consortia Technical Reports: Recent submissions

Now showing items 199-201 of 456

    • Calculation Of Conical (Mach) Wave Displacement Fields Radiated By Borehole Sources In Slow Formations And Inhomogeneous Media 

      Gibson, Richard L., Jr. (Massachusetts Institute of Technology. Earth Resources Laboratory, 1993)
      Stationary phase solutions for the radiation patterns of borehole sources are commonly used to study the far-field seismic wavefields produced in crosshole or reverse VSP experiments, but they break down when the formation ...

    • Cased Borehole Effect On Downhole Seismic Measurements 

      Peng, Chengbin; Cheng, C. H.; Toksoz, M. N.; Zhu, Zhenya (Massachusetts Institute of Technology. Earth Resources Laboratory, 1993)
      Approximate and exact formulations are presented for the interaction of an incident wave with a cased borehole. In the approximate method, the borehole coupling theory is used to compute pressure in the fluid at a low ...

    • Acoustic Logging In Randomly Stratified Formations 

      Tang, X. M.; Cheng, N. Y.; Cheng, C. H.; Toksoz, M. N. (Massachusetts Institute of Technology. Earth Resources Laboratory, 1993)
      The propagation of borehole acoustic waves in the presence of various types of heterogeneous formations is investigated by modeling them as stratified media with varying velocity-depth distributions. Two types of formations ...