RE: Drilling fluid3 Feb 2022 16:52
Afternoon...
I think it was 9 SEPT 2021 when I posted about Ultradril...
copy/paste of that post as follows:
((Crikey:
This from Schlumberger website:
((The ULTRADRIL system has an inhibitive capability closely matching that of nonaqueous drilling fluids. Its triple-inhibition approach deters the most reactive shales and provides superb wellbore stability, preventing sloughing and swelling that can cause stuck pipe and washouts. The system encapsulates cuttings with a thin polymer coating that virtually eliminates shale dispersion, reducing the need for dilution and disposal of large fluid volumes. The ULTRADRIL system also coats the bit, BHA, and drillpipe with an accretion-inhibitive coating that keeps the cutting structure clean and effective, resulting in less bit balling and higher ROP.))
This stuff is used ALSO on shale drilling...
where the shales give up vast % of their hydrocarbon energy very early in the life cycle of the well ...causing well stability /pressure problems
The fact PRD is using this stuff in Guercif says much IMO
the washouts/sloughing off of the well bore may have been when a different fluid was used?
This is important information...its as clear as daylight...in the appendices
Blimey))