Buckling and dynamic analysis of drill strings for core sampling Page: 4 of 164
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WHC-SD-WM-ANAL-047
Rev. 0
FIGURES
Figure 1 - Buckling Load Versus Drill String Length With No
Sleeve, 15-ft Sleeve, and 25-ft Sleeve, Fixed-Pinned
Condition. . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Figure 2 - Buckling Load Versus Sleeve for Different Drill String
Lengths, Fixed-Pinned Condition. . . . . . . . . . . . . . . . 20
Figure 3 - Critical Rotational Speed Versus Axial Compressive Load for
Drill String With No Sleeve, Fixed-Pinned Condition. . . . . . 21
Figure 4 - Critical Rotational Speed Versus Axial Compressive Load for
Drill String With 15-ft Sleeve. Fixed-Pinned Condition . . . . 22
Figure 5 - Critical Rotational Speed Versus Axial Compressive Load
for Drill String With 25-ft Sleeve, Fixed-Pinned Condition . 23
Figure 6 - Drill String Configuration at Failure . . . . . . . . . . . . 24
Figure 7 - Buckling Load Versus Drill String Length With No Sleeve,
Including Failed Drill String Data, Fixed-Fixed and
Fixed-Pinned Conditions. . . . . . . . . . . . . . . . . . . . 25
Figure 8 - Buckling Load Versus Sleeve Length for Different Drill
String Lengths, Fixed-Fixed Condition. . . . . . . . . . . . . 26
Figure 9 - Buckling Load Versus Drill String Length With 15-ft
Sleeve, Fixed-Fixed and Fixed-Pinned Conditions. . . . . . . . 27
Figure 10 - Buckling Load Versus Drill String Length With 25-ft
Sleeve, Fixed-Fixed and Fixed-Pinned Conditions. . . . . . . . 28ii
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Ziada, H.H., Westinghouse Hanford. Buckling and dynamic analysis of drill strings for core sampling, report, May 15, 1996; Richland, Washington. (https://digital.library.unt.edu/ark:/67531/metadc703088/m1/4/: accessed May 10, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.