Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN: 9780190698614
Author: Sadiku, Matthew N. O.
Publisher: Oxford University Press
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Please help answer #6 and #7 only please
Question 6
To reduce bit balling when drilling a soft clay formation, a PDC bit should have:
O Small journal angle
O Large junk slot area
Gauge protection
Sealed bearings
D
Question 7
In a typical drilling operation, the flow regime in the annulus would likely be:
O Turbulent
O Laminar
Transitional
O Supersonic
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Transcribed Image Text:Question 6 To reduce bit balling when drilling a soft clay formation, a PDC bit should have: O Small journal angle O Large junk slot area Gauge protection Sealed bearings D Question 7 In a typical drilling operation, the flow regime in the annulus would likely be: O Turbulent O Laminar Transitional O Supersonic
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