Page 225 - Practical Well Planning and Drilling Manual

Section 2 revised 11/00/bc 1/17/01 12:04 PM Page 201

Drill Bit Selection, Parameters, and Hydraulics [ ]
2.4.9

2.4.8. Drilling Program: Bit Selection and Drilling Parameters

Having arrived at a carefully considered position on which bit is
likely to be best for each formation, the following information should
be included in the drilling program:

1. Recommended bits for each hole size, showing in each case the
best offset bit and why the recommended bit differs (if it does)
2. Anticipated BHAs for each part of the well
3. Recommended ranges of drilling parameters for each bit
4. Any other information directly relevant to selecting or running the
bits
5. Expected performance of each recommended bit (e.g., footage to
drill and average ROP)

2.4.9. References for Drillbit Selection

Atkin, et al. “New Nozzle Hydraulics Increase ROP for PDC and Rock
Bits,” SPE 37578. (Refers to the Vortexx nozzle design.)

Brandon, B.D., et al, “Development of a New IADC Fixed Cutter Drill
Bit Classification System,” SPE/IADC 23940. Presented at the
IADC/SPE Drilling Conference, New Orleans, February 18-21, 1992.

Gault, et al. “PDC Applications in the Gulf of Mexico with Water Based
Drilling Fluids,” SPE 15614, June 1988.

McGehee, D.Y. et al. “The IADC Roller Bit Classification System,”
SPE/IADC 23937. Presented at the IADC/SPE Drilling Conference, New
Orleans, February 18-21, 1992.

Veenhuizen, et al. “Ultra-High Pressure Jet Assist of Mechanical
Drilling,” SPE 37579.

Wells, M.R. (Amoco), and R.C. Pessier (Hughes Christensen).
“Asymmetric Nozzle Sizing Increases ROP,” SPE 25738. Presented at
the SPE/IADC Drilling Conference, Amsterdam, February 23-25, 1993.

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