C - Chemistry – Metallurgy – 09 – K
Patent
C - Chemistry, Metallurgy
09
K
C09K 8/03 (2006.01) C09K 8/16 (2006.01) C09K 8/26 (2006.01) C09K 8/32 (2006.01) C09K 8/502 (2006.01) C09K 8/504 (2006.01) C09K 8/52 (2006.01) C09K 8/66 (2006.01)
Patent
CA 2640949
A wellbore fluid comprising a base fluid and a particulate bridging agent comprised of a sparingly water-soluble material selected from the group consisting of melamine (2,4,5- triamino-l,3,5-triazine), lithium carbonate, lithium phosphate (Li3PO4), and magnesium sulfite.
L'invention concerne un fluide de forage comprenant un fluide de base et un agent de pontage particulaire comprenant un matériau modérément hydrosoluble choisi dans le groupe comprenant la mélamine (2,4,5- triamino-1,3,5-triazine), le carbonate de lithium, le phosphate de lithium (Li3PO4) et le sulfite de magnésium.
Duncum Simon Neil
Sawdon Christopher Alan
Bp Exploration Operating Company Limited
Fetherstonhaugh & Co.
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