稠油热采纳米乳化降粘技术研究与应用  

Technical Study on Emulsion and Viscosity Reduction for Heavy Oil Thermal Recovery

作　　者：李胜彪[1,2] 

机构地区：[1]西南石油大学研究生院,四川成都610500 [2]河南油田分公司第二采油厂,河南唐河473400

出　　处：《石油天然气学报》2009年第2期130-133,共4页Journal of Oil and Gas Technology

摘　　要：对常规稠油降粘剂和加入纳米助剂后的乳化降粘剂进行了对比评价。试验结果表明,加入纳米助剂后在表面张力、降粘效果、耐温、耐盐和脱水等方面略有改善,在驱替效果方面明显改善。现场应用纳米降粘剂后,油井平均日产油量、产油量、和油汽比等吞吐指标均有所提高,蒸汽吞吐效果明显改善,单井措施增油120t,为稠油热采进一步改善开发效果和提高原油采收率提供了技术支持。The conventional heavy oil viscosity reducer was compared with emulsion and viscosity reducer after using nano-assistant .The test result indicates that after the nano-assistant was used, the surface tension,the effect of viscosity reduction temperature resistance,salt resistance and dewatering were improved slightly, and oil displacement was improved obviously. After the nano-assistant was used in operation, the average daily oil production rate, oil output and oil-gas ratio are improved and steam soak efficiency is evidently raised, oil increment of single well is 120t,by which a technical support is provided for further improving oil recovery and production efficiency in heavy oil recovery.

关 键 词：稠油热采 降粘剂 纳米助剂 

分 类 号：TE357.4[石油与天然气工程—油气田开发工程]