Drilling fluid additives

Details Drilling fluid additives Drilling fluid additives

1984-12-06

1986-06-10

Guynn, Herbert B.

Compositions

Leather or fur treating

252 85A, 530506, 556 28, C09K 702

Patent

active

045941696

ABSTRACT:
Drilling fluid additives are prepared by complexing humic acids and/or lignins, with three compounds of zirconium, nickel and iron. The metal composition of the additives is 1.3 to 2.5% of zirconium, 0.8 to 1.5% of nickel and 0.8 to 1.5% of iron, and is totally 3.0 to 5.5%. Thus, the drilling fluid additives, containing no chromium, can be used in wide temperature range for the drilling of oil, geothermal or gas wells with less gelation even by various contamination and cause no serious environmental pollution.

REFERENCES:
patent: 2813826 (1957-11-01), Crowley et al.
patent: 4220585 (1980-09-01), Jauora et al.
patent: 4235727 (1980-11-01), Firth
patent: 4235728 (1980-11-01), Schulz et al.

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