Question 8 Which of the following pressure losses contributes to Equivalent Circulating Dens- bottom? Drill string pressure losses Annulus pressure losses O MWD pressure losses 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

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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Question 8
Which of the following pressure losses contributes to Equivalent Circulating Dens
bottom?
O Drill string pressure losses
O Annulus pressure losses
MWD pressure losses
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 Dens bottom? O Drill string pressure losses O Annulus pressure losses MWD pressure losses 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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