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You have a shallow drilling project and budget constraints. The best bit type to use would be: O Air blast bearing tricone O Open roller bearing PDC O Sealed journal bearing tricone O Open roller bearing tricone

You have a shallow drilling project and budget constraints. The best bit type to use would be: O Air blast bearing tricone O Open roller bearing PDC O Sealed journal bearing tricone O Open roller bearing tricone

Structural Analysis
Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Please only provide the correct answer choices for the following:
Question 5 You have a shallow drilling project and budget constraints. The best bit type to use would be: O Air blast bearing tricone O Open roller bearing PDC O Sealed journal bearing tricone n O Open roller bearing tricone 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 O Gauge protection O Sealed bearings Question 7 In a typical drilling operation, the flow regime in the annulus would likely be: O Turbulent O Laminar O Transitional O Supersonic
Transcribed Image Text:Question 5 You have a shallow drilling project and budget constraints. The best bit type to use would be: O Air blast bearing tricone O Open roller bearing PDC O Sealed journal bearing tricone n O Open roller bearing tricone 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 O Gauge protection O Sealed bearings Question 7 In a typical drilling operation, the flow regime in the annulus would likely be: O Turbulent O Laminar O Transitional O Supersonic
Question 8 Which of the following pressure losses contributes to Equivalent Circulating Density (ECD) at bottom? O Drill string pressure losses O Annulus pressure losses O MWD pressure losses on O Drill bit pressure losses Question 9 Why to place a HWDP section in the drillstring? O It absorbs shock vibrations preventing bit failure O It absorbs part of WOB reducing the chance of drillpipe buckling O It decreases the drilling cost since HWDPS are cheaper than DPs O It helps prevent stress concentration at the top of the drill collar section Question 10 Which of the following indicates an advantage of drillpipe upsetting? O It allows the use of higher mud flow rates O It enables drillpipes to apply weight on bit O It decreases the drillpipe cost O It provides a better transition from the stiffer tool joints to the more flexible tubes
Transcribed Image Text:Question 8 Which of the following pressure losses contributes to Equivalent Circulating Density (ECD) at bottom? O Drill string pressure losses O Annulus pressure losses O MWD pressure losses on O Drill bit pressure losses Question 9 Why to place a HWDP section in the drillstring? O It absorbs shock vibrations preventing bit failure O It absorbs part of WOB reducing the chance of drillpipe buckling O It decreases the drilling cost since HWDPS are cheaper than DPs O It helps prevent stress concentration at the top of the drill collar section Question 10 Which of the following indicates an advantage of drillpipe upsetting? O It allows the use of higher mud flow rates O It enables drillpipes to apply weight on bit O It decreases the drillpipe cost O It provides a better transition from the stiffer tool joints to the more flexible tubes
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