bit specific coefficient of sliding friction

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: ock unconfined compressive strength, psi WOB = weight on bits, lbf λ = bit hydraulic factor, dimensionless. μ = bit specific coefficient of sliding friction, dimensionless. SPE 116667 7 References 1. 2. Teale, R. 1965. The concept of Specific Energy in Rock Drilling. Int. J. Rock Mech. And Mining Sci., Vol.2, 57-73. Simon, R. 1963. Energy Balance in Rock Drilling. Paper SPE 499 presented at the SPE-U. Texas Drilling and Mechanics Symposium, Austin, Texas, Jan. 23-24. 3. Pessier, R.C. and Fear, M.J. 1992. Quantifying Common Drilling Problems with Mechanical Specific Energy and Bit-Specific Coefficient of Sliding Friction. Paper SPE 24584 presented at the 67th Annual Technical Conference and Exhibition, Washington, DC, October 4-7. 4. Waughman, R.J., Kenner, J.V., and Moore, R.A. 2002. Real-Time Specific Energy Monitoring Reveals Drilling Inefficiency and Enhances the Understanding of When to Pull Worn PDC Bits. Paper SPE 74520 presented at the IADC/SPE Drilling Conference, Dallas, Texas, 26-28 February. 5. Dupriest, F.E. and...
View Full Document

{[ snackBarMessage ]}

Ask a homework question - tutors are online