Testing oil pipe with 150 bar and failing

[Bilegt]

Hi guys. I need your help
We installed 240m oil pipe and tested it with 150 bar. But it is leaking every coupling and union.
Any solutions, we tried our best we tightened as much as possible.

 

[LittleInch]

A few more details perhaps like

Design pressure, design code, size of pipe, type of "coupling" and Union.

Or are these API 6A hammer unions?

Options - dismantle and clean every end, remove all dirt, chips, gouges, scrapes etc
Add some sealing paste

Get a bigger hammer

Get a stronger operator

Buy some proper pipe and weld it

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.

 

[EngrPaper]

LittleInch's last option is usually the best. Sounds like a higher pressure for it to be threaded and coupled and not expect this to happen.

 

[LittleInch]

To be fair API 6A hammer unions go to 20,000 psi but they are pretty basic things and get treated terribly by drillers.

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.

 

[blacksmith37]

What kind of pipe ? What kind of connections ; there are hundreds for API casing. Why unions ?

 

[0707]

150 Bars is a high pressure, the rating for couplings unions and flanges shall be according de high pressure test and from what do you say it seems a design project error.