Hydril PH-6 versus VAM TOP as a FRAC String

28 October 2019 Gents,

We are having issues with  4-1/2" PH-6 tubing string currently being used as a FRAC string. The test pressure is 12000 psi and there are multiple tests while RIH. In the past, I have used 4-1/2" VAM TOP as a FRAC string with similar high pressure 12000 psi and had no problems at all.
There are obvious differences between the 2 threads and my preference is admittedly VAM TOP due to the strict controls on this thread but would like some of the member's thoughts and opinions who perhaps have similar experiences or problems.

1 Answer(s)

---