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3- What is mechanical advantage? 4- A drill string of 5200ft has 4500ft of drill pipe with a weight of 25.6 lb/ft and 700ft of drill collar with a weight of 99 lb/ft. What is the total weight of the drill string?

3- What is mechanical advantage? 4- A drill string of 5200ft has 4500ft of drill pipe with a weight of 25.6 lb/ft and 700ft of drill collar with a weight of 99 lb/ft. What is the total weight of the drill string?

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
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3- What is mechanical advantage? 4- A drill string of 5200ft has 4500ft of drill pipe with a weight of 25.6 lb/ft and 700ft of drill collar with a weight of 99 lb/ft. What is the total weight of the drill string? 5- Calculate the load on the static fast line for the drill string (in an empty hole) given in question 3. The traveling block and the hook weighs 30,000lb. The block has 8 threads. 6- For the same information as in question 3 and 4. Calculate the load in the dead line. 7- For the same information as above, what is the load in the dynamic fast line? 8- The nominal strength of the 1 1/8" drilling line on the rig is 130,000lb. With a safety factor of 3.5 is the drilling line sufficient for the drill string in question 5?
Transcribed Image Text:3- What is mechanical advantage? 4- A drill string of 5200ft has 4500ft of drill pipe with a weight of 25.6 lb/ft and 700ft of drill collar with a weight of 99 lb/ft. What is the total weight of the drill string? 5- Calculate the load on the static fast line for the drill string (in an empty hole) given in question 3. The traveling block and the hook weighs 30,000lb. The block has 8 threads. 6- For the same information as in question 3 and 4. Calculate the load in the dead line. 7- For the same information as above, what is the load in the dynamic fast line? 8- The nominal strength of the 1 1/8" drilling line on the rig is 130,000lb. With a safety factor of 3.5 is the drilling line sufficient for the drill string in question 5?
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