STABILIZATION OF POLYACRYLAMIDE EMULSION FORMULATIONS

摘要

The current invention provides a method to form a stable blend of polyacrylamide water-in-oil emulsion and breaker surfactants such as silicon polyether copolymer and linear or branched alcohol ethoxylate surfactants. The composition can be employed, for example, as a friction reducing additive for water based fracturing fluid, or a drilling mud additive.

主权项

1. A method of stabilizing a friction reducer composition comprising
(a) polyacrylamide emulsion; and (b) breaker surfactantsaid method comprising adding an effective amount of an organic additive with the formula R—O—R′, where
R is a monovalent, linear or branched, saturated or unsaturated hydrocarbon with 1-200 carbon atoms, and R′ is a monovalent, linear or branched, saturated or unsaturated hydrocarbon with 1-70 carbon atoms and can also contain oxygen, nitrogen and sulphur heteroatoms, thereby stabilizing said friction reducer composition.