聚合物驱采油污水处理研究进展  

Progressive Research of Treatment for Sewage Produced From Polymer Flooding Displacement

作　　者：罗一菁[1] 张忠智[1] 赵树英[1] 宋绍富[1] 黄洁[1] 

机构地区：[1]石油大学(北京)化工学院,北京102249

出　　处：《石油化工高等学校学报》2003年第1期9-13,共5页Journal of Petrochemical Universities

基　　金：中国石油天然气股份公司科技风险创新基金资助项目(200105)。

摘　　要：　含聚丙烯酰胺污水是一类比较复杂、特殊的污水,随着各个油田相继采用聚合物驱以提高原油采收率,采油污水的数量在逐年增加,其处理已成为一个亟待解决的问题。综述了采用几种方式降解水中聚丙烯酰胺的可行性研究结果,光催化氧化、硫酸盐还原菌都能使水中聚丙烯酰胺有不同程度的降解。光催化氧化考察了催化体系、光源体系等对HPAM的影响。采用1%的催化剂TiO2使用中压汞灯在紫外光的作用下,可使聚丙烯酰胺(HPAM)分解至8%左右。硫酸盐还原菌在油藏环境条件pH为7左右时,大量繁殖生长,使HPAM大幅度降解。在高温下(60～80℃),聚丙烯酰胺失稳发生降解,高温及高矿化度油藏也会导致HPAM降解。以上研究为解决聚合物采油污水的处理奠定了良好的基础。Sewage containing polyacrylamide (PAM) is one of complex components with special characteristics. It has become an important subject to be resolved necessarily with polymer flooding being applied to enhance oil recovery and increasing sewage quantity year by year. This paper summarizes possibility of PAM degradation with some kinds of ways. PAM in water can be degraded with varying content by photo catalytic oxidation or sulfate-reducing bacteria. Catalysts and light resources to influence of PAM were investigated in the system of photo catalytic oxidation. HPAM can be degraded to 8% by using 1% of TiO2 as catalyst under ultraviolet radiation of the middle pressure mercury lamp. It can also be degraded to a great extent by means of good growth of sulfate-reducing bacteria under approximate pH=7. HPAM loosed stability and easy to be degraded under the high temperature or high mineralized degree (60-80 ℃). It is concluded that the result be applied to the sound data of treatment PAM sewage. 

关 键 词：采油污水 聚丙烯酰胺 光催化氧化 硫酸盐还原菌 

分 类 号：TE357.431[石油与天然气工程—油气田开发工程]