Q4/A/Determine the Maximum axial stress for a36-ftjoint of 7.625-in.OD.6.625in.ID,39 Ib/ft. N-80 casing with API long, round thread couplings if the casing subjected to a 400 000 lbf axial tension in a portion of directional wellbore having a doglog severity of 4"/100ft.Compute the maximum axiat stress assuming: 1-Uniform contact between the casing and the borehole wall. 2- Contact between the casing and the borehole wall only at the couplings. 3-The joint strength of the API round thread-couplings. Take (oult for N-80-100 000 lbf).
Q4/A/Determine the Maximum axial stress for a36-ftjoint of 7.625-in.OD.6.625in.ID,39 Ib/ft. N-80 casing with API long, round thread couplings if the casing subjected to a 400 000 lbf axial tension in a portion of directional wellbore having a doglog severity of 4"/100ft.Compute the maximum axiat stress assuming: 1-Uniform contact between the casing and the borehole wall. 2- Contact between the casing and the borehole wall only at the couplings. 3-The joint strength of the API round thread-couplings. Take (oult for N-80-100 000 lbf).
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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Transcribed Image Text:Q4/A/Determine the Maximum axial stress for a 36-ft.joint of 7.625-in.OD.6.625in.ID.39
Ib/ft. N-80 casing with API long, round thread couplings if the casing subjected to a 400
00 0 lbf axial tension in a portion of directional wellbore having a doglog severity of
4/100ft.Compute the maximum axiat stress assuming: 1-Uniform contact between the
casing and the borehole wall. 2- Contact between the casing and the borehole wall only
at the couplings. 3-The joint strength of the API round thread-couplings. Take ult for
N-80-100 000 lbf).
utmat
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