Hydrill 511 connection drawings

[safry]

Dear community,

Is there anybody who could share engineering drawings for 2-7/8" 6.4 ppf Hydrill 511 connection. Need it for cutting thread in the field.

Thanks in advance,

safry

[jdmacbook]

Hi safry, you may find drawings out there but from experience Hydril are pretty tight on their property and i am sure you will be aware of the hoops you will need to jump through before they will even let you use their gauges.

it would be easy enough to program a CNC to replicate their thread-forms however the problem is that in order for Hydril to OK it they have to approve of the metallurgy of the stock, QC the shop etc etc. Understand Hydril's position on this- if there is a failure and subsequent effects, the name plastered all over the enquiry will be "a Hydril connection failure" rather than "company x" machine shop- regardless of the failure mechanism.

a similar outcome to the death of a chinese person charging their phone- it was the phone manufacturer that got the bad press, and then had to act to protect their name, when it appears that the fault was with a third party supplied charger- that you can bet is still churning out the same stuff day in day out.

I have no reason to protect Hydril here, and not intending to discourage you as i have no idea of its intended use, nor do i doubt that the connection is being copied somewhere every day- just highlighting the way the industry is going now wrt litigation etc. as engineers we also have a responsibility to ensure a wells integrity and it certainly adds to the risk profile by using uncertified equipment for any reason.

i can certainly share performance data of the connection (or you can get that from Tenaris website) but i do not have any engineering drawings so not really the answer you were looking for...

good luck