用于稠油蒸汽吞吐井深部封窜的热触变体系的性能试验  

Performance experiment on thermal thixotropic system for deep channeling plugging in steam huff and puff wells

作　　者：戴彩丽[1,2] 纪文娟[2] 姜汉桥[1] 赵福麟[2] 姬承伟[3] 秦涛[4] 

机构地区：[1]中国石油大学石油工程学院,北京102249 [2]中国石油大学重质油国家重点实验室,山东青岛266555 [3]新疆油田公司陆梁油田作业区,新疆克拉玛依834000 [4]中原油田分公司采油工程技术研究院,河南濮阳457001

出　　处：《中国石油大学学报（自然科学版）》2010年第4期167-171,共5页Journal of China University of Petroleum(Edition of Natural Science)

基　　金：中国博士后基金项目(20090460481);山东省'泰山学者'建设工程项目;中国石油大学(华东)研究生创新基金项目(S10-05)

摘　　要：针对常用封窜剂难以解决稠油蒸汽吞吐井深部封窜问题,考察封窜剂热触变体系的封堵性能。热触变体系是由热触变聚合物配制而成的,其聚合物亲水主链中含有疏水片段或疏水侧基。研究表明:热触变体系在特定温度下,从溶液转变为高强度冻胶,降温后体系自动恢复流动性,整个过程是可逆的,可多次重复;热触变体系具有热触变温度和热触变冻胶强度可调,注入性、耐温性、稳定性好和封堵率高等优点,特别适合于吞吐井蒸汽封窜的深部处理。The application of anti-channeling agents could not effectively solve the problem of deep channeling in stream huff and puff heavy oil wells. The performance of thermal thixotropic system was investigated. The thermal thixotropic system was prepared by using thermal thixotropic polymer, and the polymer hydrophilic principal chain includes hydrophobic side group. The results show that the system can change from solution into high-strength gel system at thermal thixotropic temperature, and resume mobility after cooling. The whole process is reversible and can be repeated for many times. The system has good behav- iors of adjustable thermal thixotropic temperature and gel strength, good injection performance, temperature tolerance, stability and high-plugging efficiency, which is particularly suitable for deep channeling plugging in steam huff and puff wells.

关 键 词：油井 热触变体系 蒸汽吞吐 深部封窜 冻胶 

分 类 号：TE39[石油与天然气工程—油气田开发工程]