三次采油用聚丙烯酰胺乳液的合成

Preparation of inverse emulsion of polyacrylamide for enhanced oil recovery

以白油为连续相、丙烯酰胺为分散相、S—80为乳化剂、K_2S_2O_8—Na_2SO_3为催化剂合成了较稳定的聚丙烯酰胺反相乳液。聚合物分子量在200～400万,水解度可控。同时,对于搅拌剪切和乳化剂用量对乳液的影响也做了初步探索。

Catalyzed by K2S2O3 -Na2SO3 , a stable inverse emulsion of polyacrylamide was prepared from a mix turc of aqueous acrylamicle, white oil and Span -80. The molecular weight of polyacrylamide was from 2 to 4 million and the hydrolysis was controllable. Simultaneously- a brief probe was made about the effect of stirring and the amount of Span- 80 on emulsion.