Problem 61: A 1.05 inch tubing string parted at 10,000 ft. When fished with 2-3/8", 4.85 ppf drillpipe, 50" of stretch is measured when 10,000 pounds of tension is applied. Fish length to stuck point?
This problem is solved in the Guidebook 6 DTC 10. The needed equation in the CBT SPE Reference Guide is on page 116.
Steps:
1) Solve for the stretch of the known length of drillpipe.
2) Subtract calculated DP stretch from the total stretch to find the stretch attributed the fish.
3) Calculate fish length.
Keep in mind this sort of problem could ask you to calculate any step when given the required inputs.
Don't worry about using the Redbook or other similar references when doing these practice problems. On the CBT they could just provide what you need in the problem, most likely in similar format to the SPE material.
Don't worry about using the Redbook or other similar references when doing these practice problems. On the CBT they could just provide what you need in the problem, most likely in similar format to the SPE material.
how can step 3 be completed without having the information needed to determine the X-sectional area of the 1.05" tubing that is being fished.
ReplyDeleteOn the practice exam use Redbook or equ. On an exam, that information will be provided, possibly in tricky ways so just understand how it all works.
DeleteI try to tell folk to not be obsessed with plug-and-chug data issues. Just look this stuff up when doing the practice exams, and don't worry about how it will work on the exam itself. They will test your ability while providing you with what you need. Just ignore all that and use your resources when practicing to learn the material. Even as far back as 2015 resources where not the focus but rather understanding, and an understanding that you simply won't have without going through the motions of practice problems that need those resources. The testers expect you to be able to access data from whatever sources they provide, but you really need to get used to using your real-world resources even though they won't be used on the exam. The test writers will assume you know what to look for and when, and write problems accordingly. Make sense?
Hi, I know this might be a long shot and maybe a silly attempt but I thought I’d try anyways. I’m looking for the author/owner of this blog: http://mathflashcards.blogspot.com/?m=1
ReplyDeleteThe only contact info I have to go by is ‘ M. Dammeyer’ the author of that blog is also an engineer hence me reaching out to you.
Hi Tea! You are correct, that's me! Send me a gmail at mdavidgo.
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