Vibratory Power Losses and Delivery to Rock During Rotary-Vibratory Drilling: Part II, Application

[+] Author and Article Information
L. D. Mitchell, D. C. Ohanehi

Virginia Polytechnic Institute and State University, Blacksburg, Va. 24061

J. Mech. Des 102(1), 110-114 (Jan 01, 1980) (5 pages) doi:10.1115/1.3254700 History: Received March 01, 1979; Online November 17, 2009


This paper applies the theoretical solution developed in Part 1 of this paper to a rotary-vibratory drilling unit. The theory developed and applied in these papers explains possible causes for the failures of such devices to perform properly in the vertical vibratory mode. This paper predicts improved performance based upon system design changes. Power delivery as a function of depth is studied. Power delivery problems at great depths are uncovered. Further system redesign is suggested. The redesign implementation in the model results in recovery of the power delivery capability to the rock.

Copyright © 1980 by ASME
Topics: Drilling , Rocks , Design , Failure
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