宋芳屯油田采油污水回注方案优选研究  

Studies on optimization of reinjection scheme for produced water of songfangtun oilfield

作　　者：刘灏亮 黄耀明 冯思佳 孙铎[1] 

机构地区：[1]东北石油大学石油工程学院.黑龙江大庆163318 [2]长庆油田第十二采油厂固城采油作业区,甘肃庆阳745400 [3]大庆油田第三采油厂,黑龙江大庆163318

出　　处：《化学工程师》2017年第5期37-39,21,共4页Chemical Engineer

基　　金：“十三五”油气国家重大专项“稠油火驱提高采收率技术”(No.2016ZX05055-006);黑龙江省自然科学基金“火烧油层供氢催化裂解改质稠油内在反应机理研究”(No.E2015036)资助

摘　　要：本针对宋芳屯油田M层采油污水回注的问题,开展采油污水回注方案优选研究。结合区块资料及实际生产状况,通过室内模拟注水实验,制定该油田采油污水回注的最优方案。实验发现,采油污水对储层污染程度较大,随着污染程度升高,储层渗透率降低,因此,需要对其进行处理后再回注。在室内实验中,发现清污混注能有效减轻注入水对储层的污染。最终结合实验结果,优选出合适的回注方案:采用清污混注的注入方式,清污比50∶1,其中添加1.5%有机磷酸酯作为防垢剂,1.0%四羟甲基硫酸磷作为杀菌剂。In view of the problems of reinjection of produced water in Songfangtun oilfield M layer, studies on optimization of reinjection scheme for produced water were conduct. Combined with information of block and practi- cal situation, optimal scheme of reinjection for this oilfield was made with the help of laboratory experiments. It was observed that reservoir was polluted seriously by produced water, and permeability of reservoir reduced with in- crease of pollution extent, so it should be treated before reinjection. In laboratory experiments, clean/polluted water was found to reduce pollution extent. Combined with results of experiments, suitable scheme of re-injecting pro- duced water was optimized： clean/polluted water was mixedly injected with ratio of 50：1, adding 1.5% organophosphorus ester as anticrustator, 1.0% THPS as bactericide.

关 键 词：采油污水 回注 室内实验 污染程度 优选 

分 类 号：TE357.8[石油与天然气工程—油气田开发工程]