RESEARCH PAPERS: Rock Mechanics/Emerging Energy Technologies/Drilling

Identification and Rock Failure Characterization in Bit-Tooth Penetration

[+] Author and Article Information
E. I. Umez-Eronini

Mechanical Engineering Department, Howard University, Washington, D.C. 20059

J. Energy Resour. Technol 105(2), 134-137 (Jun 01, 1983) (4 pages) doi:10.1115/1.3230892 History: Received December 30, 1982; Revised February 28, 1983; Online October 22, 2009


Parameter values required in a previous rock model are estimated using the invariant imbedding identification technique applied to a bit-tooth drop test. Sequential data generated during the identification is relevant to the adequacy of the model and may suggest possible enhancement of the rock description.

Copyright © 1983 by ASME
Topics: Failure , Rocks , Drops
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