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RESEARCH PAPERS

Effects of Flow–Pipe Interaction on Drill Pipe Buckling and Dynamics

[+] Author and Article Information
Qun Zhang

INTEC Engineering Partnership Ltd., 15600 JFK Boulevard, 3rd Floor, Houston, TX 77032

Stefan Miska

Department of Petroleum Engineering, The University of Tulsa, 600 S. College, Tulsa, OK 74104

J. Pressure Vessel Technol 127(2), 129-136 (May 27, 2005) (8 pages) doi:10.1115/1.1858922 History: Received August 07, 2003; Revised July 12, 2004; Online May 27, 2005
Copyright © 2005 by ASME
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References

Figures

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Statistics of drillpipe failures—based on field data provided by A. Lubinski
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Statement of problem—nonrotating drillpipe conveying fluid in a vertical hole
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Critical buckling flow rate versus compression acting on the bottom of drillpipe—for different pipe lengths—Case 1
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Critical flow rate versus compression—for different densities of fluid—Case 2
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Characteristics of the first two eigenfrequencies when increasing flow rate (0–190 liter/s)—Case 3
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Characteristics of the first two eigenfrequencies when increasing flow rate (0–160 liter/s)—Case 4
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Characteristics of the first two eigenfrequencies when increasing flow rate (0–65 liter/s)—case 5
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Mode 2 under different flow conditions
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Lateral displacements of drillpipe vibrating in fluid at instant of 1/8 period of the first mode—different flow rates
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Bending stresses at neutral point versus time—different axial flow rates
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Bending stresses of drillpipe vibrating in fluid during the first period—flow rate=12.62 liter/s (200 gpm)

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