改性沥青堵水调剖剂的室内评价  

Laboratory Evaluation on Modified Asphalt Water Shutoff/Profile Modification Agent

作　　者：王为[1] 

机构地区：[1]大庆油田有限责任公司第九采油厂,大庆163853

出　　处：《精细石油化工进展》2012年第6期24-26,共3页Advances in Fine Petrochemicals

摘　　要：对改性沥青堵水调剖剂封堵率、残余阻力系数、耐冲刷、选择性封堵性能进行了评价。该调剖剂注入量为0.4 PV时,残余阻力系数和封堵率分别达18.84和94.44%,且在水驱突破后,水相渗透率基本保持不变,说明该堵水调剖剂具有良好的耐冲刷性能。三管并联实验表明,该调剖剂可根据岩心间渗透率的不同实现选择性封堵,优先进入渗透率较高的岩心,对高渗透层改善吸水剖面效果显著。The plugging rate, residual drag coefficient, washing resistant performance and selective shutoff performance of modified asphalt water shutoff/profile modification agent were evaluated. When 0.4 PV of this modified asphalt water shutoff/profile modification agent is added, residual drag coefficient and shutoff rate reach 18.84 and 94.44% respectively, and the water phase permeability remains roughly the same after the breakthrough of water flooding, indicating that this shutoff/profile modification agent has good washing resist- ant performance. According to the results of three - tube parallel experiment, this water shutoff/profile modifi- cation agent can realize selective shutoff based on the difference of inter - core permeability and can enter into the core with high permeability first, therefore it can improve the injection profile of high permeability formation significantly.

关 键 词：改性沥青 堵水 调剖 耐冲刷 

分 类 号：TE358.3[石油与天然气工程—油气田开发工程]