SteveB wrote:
Take a look at this. It will explain the shape, and why they wouldn't be
remachined on the ends.


http://www.petrodrillingtools.com/pr...FRBbagodwGo8lg

Steve

"Tim Wescott" wrote in message
...
On Sat, 28 Feb 2009 21:06:20 -0700, SteveB wrote:

I don't have a clue why, but just a short time ago, I was lying in my
hot bath contemplating time spent on drilling rigs. I've come to
realize that I've forgotten more than most young guys know. But I
digress.

Question: Why is it that 5" drill pipe comes in random lengths. Every
crane operator had that denim covered tally book in their back pocket,
and losing it could bring on severe consequences.

Out of everything we used, jars, collars, stabilizers, saver subs,
fishing tools, ........... the thing there was the most of was drilling
pipe, and that would seem to be the easiest to fabricate in standard
lengths. Same with casing.

Can anyone tell me?

Steve
It's always getting cut off and the ends remachined?

(I know nothing of oil drilling)

--
http://www.wescottdesign.com


It never ceases to amaze me that people come up answers with out
knowing anything about the subject under discussion.
...lew...