This is indeed an interesting topic, and apparently there are not any real good fix for it.
I know Cameron had a system years ago where they could displace heavy fluids into the annulus with SAP. However, as far as I have heard it was shelved due to lack of clients taking it into use. I guess that the problem really is not large enough for the operators to invest in a solution?
Being an inventor and a serial entrepreneur, I would love to study the problem better to see if I and my network can come up with a solution that can easily and at low cost be implemented. The work I do now typically consist of coming up with solutions that is then taken into the market by one or several service companies.
So if anyone is interested to share info with me, I would certainly be very grateful. Info about who has the challenges and contact details and wellhead schematics will be very helpful.
My email address is [email protected]