Oxygen scavenging methods and additives

Details Oxygen scavenging methods and additives Oxygen scavenging methods and additives

1974-10-29

1977-11-22

Guynn, Herbert B.

Compositions

Leather or fur treating

175 64, 252 85B, 252 855B, 252188, C09K 702, C09K 704, E21B 4322, C01B 1766

Patent

active

040595331

ABSTRACT:
This invention relates to methods and additives for scavenging oxygen dissolved and entrained in liquids which are particularly suitable for removing dissolved and entrained oxygen from polymer-containing fluids used in drilling and completing well bores as well as water flood and other procedures carried out in the oil field. The oxygen scavenger additive is sodium dithionite or a mixture thereof with sodium dithionate dispersed in a liquid carrier such as a hydrocarbon.

REFERENCES:
patent: 1810663 (1931-06-01), Kritchevsky et al.
patent: 1810665 (1931-06-01), Kritchevsky et al.
patent: 2702789 (1955-02-01), Teichmann et al.
patent: 2718497 (1955-09-01), Oldham et al.
patent: 3017351 (1962-01-01), Scott et al.
patent: 3301323 (1967-01-01), Parsons
patent: 3343601 (1967-09-01), Pye
patent: 3399725 (1968-09-01), Pye
patent: 3852201 (1974-12-01), Jackson
The Merck Index, Eighth Edition, Published 1968 by Merck and Co., Inc., pp. 958 and 960.

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