低渗透油藏多段塞调剖技术室内研究及现场应用  

LAB RESEARCH AND FIELD APPLICATION OF MULTIPLE SLUG PROFILE CONTROL TECHNOLOGY IN LOW PERMEABILITY RESERVOIR

作　　者：李永太[1] 李辰[1] 张宏福[2] 吉克智 黎晓茸[2] 刘笑春[2] 

机构地区：[1]西安石油大学石油工程学院 [2]中国石油长庆油田分公司油气工艺研究院 [3]中国石油长庆油田分公司采油七厂

出　　处：《钻采工艺》2013年第6期98-101,8,共4页Drilling & Production Technology

基　　金：陕西省教育厅重点实验室项目(项目编号:11JS048)

摘　　要：为了解决靖安油田低渗透油藏注入水窜流严重、水驱开发效果差的问题,研制了可动冻胶调剖剂和缓膨黏弹颗粒调剖剂。以这两种调剖剂为基础,在柳76-34等3口注水井上开展了多段塞注入调剖现场试验,使调剖剂既有液流转向作用又能保持调剖作用的长期有效性。3口调剖井调剖后,压力由10.4 MPa上升到14.2MPa,有效封堵了裂缝和高渗层。所有油井都取得明显的增油降水效果,其中柳76-34井对应油井日产油由22.84t上升到32.47 t,含水由60.86%下降到42.36%,取得了十分显著的增油降水效果。多段塞调剖技术具有普适性、可以在靖安油田推广应用。In order to solve the problems of the serious injecting water channeling and poor waterflooding effect in Jing'an low permeability reservoir,a movable gel profile control displacement agent and slow expansion viscoelastic particle profile control agent were developed.Based on the two profile control agents,a field experiment of multiple slug profile control were carried out in three water injection wells such as Liu76-34,the results showed that the profile control agents had both flow diversion while maintaining the longterm effectiveness of the profile control.Through profile control,the pressure of 3 wells increased from 10.4 MPa to 14.2 MPa,the cracks and the high permeability layer were effectively plugged.All wells have obtained significant precipitation and increasing oil production effect,in which Liu 76-34 well,the daily oil production has been increased from 22.84t to 32.47t,water content decreased from 60.86% to 42.36%.The multiple slug profile control technology has good adaptability,it could be popularized and applied in Jing'an Oilfield.

关 键 词：靖安油田 调剖剂 注入压力 日产油 综合含水 

分 类 号：TE348[石油与天然气工程—油气田开发工程]