Composition and method for oilfield water clarification processes

摘要

Disclosed are aqueous water clarifier compositions used to demulsify and clarify oil-water dispersions and emulsions derived from petroleum industry operations. The disclosed aqueous water clarifier composition comprises an anionic polymer, a chelating agent, optionally a base, and optionally an alcohol. Specifically the anionic polymer is a latex dispersion of an anionic polymers comprise an anionic polymer comprising: A) 2 to 80 percent by weight of at least one C