heavy wall drill pipe

Aug 14th, 2016
Studypool Tutor
Price: $5 USD

Tutor description

Word Count: 360
Showing Page: 1/3
Heavy Wall Drill PipeHeavy wall drill pipe ( Figure 1 ) is an intermediate drill string member heavier, stronger and stiffer than regular drillpipe, but at the same time more flexible than drill collars.Figure 1Because it has the same external dimensions as regular drill pipe, it is much easier to handle than drill collars. Figure2 illustrates some of its important features.Figure 2The most important drill string application for heavy wall drill pipe is in the area above the topmost drill collars wheredrill pipe fatigue failure is most likely to occur. To reduce fatigue failures in this area of the borehole, 18 to 21 joints ofheavy wall drill pipe may be run above the drill collars. This provides a gradual change in stiffness between drillcollars and drill pipe. Also, the ability of the heavy wall drill pipe to bend (unlike drill collars) serves to relieve highstresse

Review from student

Studypool Student
" Very Satisfied. "
Ask your homework questions. Receive quality answers!

Type your question here (or upload an image)

1822 tutors are online

Brown University





1271 Tutors

California Institute of Technology




2131 Tutors

Carnegie Mellon University




982 Tutors

Columbia University





1256 Tutors

Dartmouth University





2113 Tutors

Emory University





2279 Tutors

Harvard University





599 Tutors

Massachusetts Institute of Technology



2319 Tutors

New York University





1645 Tutors

Notre Dam University





1911 Tutors

Oklahoma University





2122 Tutors

Pennsylvania State University





932 Tutors

Princeton University





1211 Tutors

Stanford University





983 Tutors

University of California





1282 Tutors

Oxford University





123 Tutors

Yale University





2325 Tutors