油田污水配制聚合物凝胶的适应性研究  

Adaptability of Polymer Gel with Oilfield Wastewater

作　　者：郑苗 安科 范广毅 李疆伟 

机构地区：[1]新疆油田工程技术研究院,新疆克拉玛依834000 [2]新疆油田实验检测研究院,新疆克拉玛依834000 [3]新疆油田准东采油厂,新疆阜康831500

出　　处：《化学与生物工程》2017年第5期46-49,共4页Chemistry & Bioengineering

基　　金：国家自然科学基金项目(51304029)

摘　　要：从节能减排目的出发,新疆油田开始采用采出污水配制聚合物凝胶调剖体系。根据新疆油田石南21#站污水水质现状,对污水中的有害成分对聚合物凝胶体系(聚丙烯酰胺/有机铬交联剂)成胶性能的影响开展了室内评价实验。结果表明,矿化度及二价阳离子对成胶性能有一定影响,需控制矿化度在10 000~30 000 mg·L-1之间,Ca2+、Mg2+含量在200mg·L-1以内;还原性物质S2-、Fe2+对成胶性能影响很大,需分别控制在1mg·L-1及0.5mg·L-1以内;悬浮固体及原油对体系成胶性能影响相对较小。加入沉淀剂除去Ca2+、Mg2+,加入氧化剂除去S2-、Fe2+,可以增强聚合物凝胶体系成胶效果。该研究对于油田污水处理及改进聚合物凝胶体系配方具有重要指导意义。In order to save energy and reduce waste emission,oilfield wastewater is used to prepare polymer gel profile control system in Xinjiang Oilfield. Based on the quality of Shinan 21# station wastewater,the effects of harmful ingredients of wastewater on the gelling property of polymer gel system （polyacrylamide/organic chrome cross linker） were evaluated at a laboratory scale. The results showed that, the salinity and divalent cations had some effects on gelling property,salinity should be controlled in 10 000-30 000 mg· L^-1 , and the con- tents of Ca2＋ and Mg2＋ should be controlled below 200 mg · L^-1. The reducing substances S2 and Fee＋ had great effects on gelling property,and the content of Sz and Fe2＋ should be controlled below 1 mg ~ L 1 and 0.5 mg · L^-1 ,respectively. Suspended solid and crude oil had relatively smaller effects on gelling property. Adding precipitant to remove Ca2＋ and Mg2＋ ,and adding oxidizing agent to remove S2 and Fe2＋ could improve gelling effect. This study can provide important guidance for wastewater treatment and polymer gel formula improve- ment.

关 键 词：聚合物凝胶 油田污水 成胶性能 

分 类 号：TE357.4[石油与天然气工程—油气田开发工程]