Dynamic Characteristics of Annular Fluid Transmission Lines

[+] Author and Article Information
A. J. Healey, J. A. Nicholson

Department of Mechanical Engineering, The University of Texas at Austin, Austin, Texas

J. Fluids Eng 96(4), 370-376 (Dec 01, 1974) (7 pages) doi:10.1115/1.3447172 History: Received February 11, 1974; Online October 12, 2010


Automatic control of an oil well drilling process requires the knowledge of the dynamics of signal propagation through the annulus formed between the drill and the casing. This paper extends work previously done for circular lines to the annular case. Attenuation and phase speed are presented for various radius ratios as a function of signal frequency. For the liquid case, the results are correlated through the use of an equivalent radius.

Copyright © 1974 by ASME
Your Session has timed out. Please sign back in to continue.





Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In