Use of drilling stand

Hi folks

We are having a heated debate at our Workshop about whether or not we should use a drilling stand (c/w 15k FOSV) for our HPHT well.

The discussion hinges around the potential need to use a kill/kick assy, which will need to be M/U to the drillstring.

In the event of needing to use the kill/kick assy, it's essential that there are suitable barriers on the inside of the drillstring prior to breaking off the top-drive. We discussed the (relatively) common practice of using non-ported double floats in the drillstring .. but these are generally untested and so do not constitute a barrier.

So, the question is :
1. What does your company do and why ?
2. Is there a way to test the floats such that they can be considered a barrier ? (one idea that springs to mind is a test against pipe rams and the casing before drilling out the shoe, but this cannot be done for subsequent assemblies).
3. What about coring assemblies ?

Right, over to you all.

Kind regards

Dave

9 Answer(s)

---