Recommended grease for straight threads (stub acme)

[johnchrc]

Are you stub acme threads to make up most connections on my tool designs. These are downhole tools used in oil and gas wells. I had been using high temperature seal Grease. I torque the outer connections to 10,000 foot pounds do you prevent the tool from backing off while running in the hole with pipe. The tools remain in the hole and I do not have to back the connections off. Seals are also used these connections so I use the Heitkamp seal Greece as a lubricant to prevent galling.

The material is low alloys steel 110 KSI mys 36 Rc hardness.

Is this acceptable or would you recommend a different thread grease? Where could I go to find the appropriate grease for this application?

- CJ

 

[gearcutter]

I've found anti-seize compounds are better at preventing galling of threads than any grease that I've seen. Particularly on materials like stainless steel.
Bostik make a product called 'Never-Seez', I'm sure that there are many others.

 

[johnchrc]

Gear cutter,

Do you know if these compounds contain lead? Are they compatible with HNBR AND VITON?

- CJ