Drilling fluid

Earth boring – well treating – and oil field chemistry – Earth boring – Contains inorganic component other than water or clay

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C09K 704

Patent

active

H00016853

ABSTRACT:
Zinc oxide and zirconium oxide are used as weighting materials for water and oil based drilling fluids for horizontal wells.

REFERENCES:
patent: 3622513 (1971-11-01), Miller
patent: 5072794 (1991-12-01), Hale et al.
patent: 5301754 (1994-04-01), Cowan et al.
patent: 5307877 (1994-05-01), Cowan et al.
patent: 5332040 (1994-07-01), Nahm et al.
patent: 5343952 (1994-09-01), Cowan et al.
patent: 5363918 (1994-11-01), Cowan et al.

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