Drilling fluid

Details Drilling fluid Drilling fluid

1984-10-11

1987-11-03

Guynn, Herbert B.

Compositions

Leather or fur treating

252 851, C09K 702

Patent

active

047042141

ABSTRACT:
In an aqueous drilling fluid, an improved thinning effect is obtained by adding a first agent comprising a mixture of a sulfoalkylated tannin or polyvalent metal complex thereof with a lignite, optionally in combination with a second agent comprising a metal compound of chromium, titanium, iron, zinc, strontium or magnesium which is at least partially soluble in water.

REFERENCES:
patent: 2650197 (1953-08-01), Rahn
patent: 3034982 (1962-05-01), Monroe
patent: 3344063 (1967-09-01), Stratton
patent: 3479287 (1969-11-01), Floyd et al.
patent: 3682821 (1972-08-01), Kolaian
patent: 3700728 (1972-10-01), Moschopedis et al.
patent: 3956140 (1976-05-01), Nahm et al.
patent: 3956142 (1976-05-01), Wilson et al.
patent: 4220585 (1980-09-01), Javora et al.
patent: 4311600 (1982-01-01), Firth
patent: 4404108 (1983-09-01), Cates
patent: 4420405 (1983-12-01), McCrary
Frost et al, Article in Journal of Chemical and Engineering Data, vol. 4, No. 2, Apr. 1959, pp. 173-175.

Affiliated with

Also associated with

Rating

Drilling fluid does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Drilling fluid, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Drilling fluid will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1673182