I do like Ron's advice above as it can be implimented quickly however the point of backoff is quite a concern.
One possible option would be to run a timmons backoff tool on pipe to back off at a safe depth relative to the rig floor and other infrastructure. Run this on two sets of elevators. Recover that section and then with the rotary table safely available, go in and get some more. Once below the BOP you have more options.
Thank-you for submitting your response. However, we have with-held posting it to the site for the following reason...
What's a Timmons Back off Tool .. I had a look on Google and nothing came up.
So, it's a fantastic response, that would be made perfect if you could add a little info about it (or a link to a site etc.,).
With very kind regards