BZ25-1南油田深部液流转向体系研究与应用  

Research on Deep Fluid Diversion System and Its Application in Southern Block of BZ25-1 Oilfield

作　　者：孟科全[1] 陈维余[1] 张艳辉[1] 吴清辉[1] MENG Kequan CHEN Weiyu ZHANG Yanhui WU Qinghui(Engineering and Technology Company of Cnooc Energy Development Co. Ltd. , Tianjin 30045)

机构地区：[1]中海油能源发展股份有限公司工程技术分公司,天津300457

出　　处：《精细石油化工进展》2017年第1期10-12,共3页Advances in Fine Petrochemicals

基　　金：中海油能源发展资助项目"水平注水井调剖技术研究与应用"(HFKJ-GJ2016007)

摘　　要：针对BZ25-1南油田属窄河道型油藏,常规深部液流转向体系注入困难的问题,开发了一套适用于该油田的深部液流转向体系。该体系包括凝胶体系BHTP-1和颗粒体系BHTP-2,采用弱凝胶+中等凝胶+BHTP-2+强凝胶的组合方式,增油效果较好,驱油效率提高15%以上。该体系在BZ25-1南油田已成功应用于7井组,累计增油2.4×104m^3,措施效果明显。In view of that the southern block of BZ25-1 Oilfield is a narrow river course reservoir and that conventional deep fluid diversion system is difficult to be filled,a deep fluid diversion system applicable to this oilfield was developed.The results of laboratory experiment have shown that this system contains Gel System BHTP-1 and Particle System BHTP-2 and that the oil production increase effect is good and the oil displacement efficiency can be increased by more than 15% when the combination of weak gel ＋ medium gel ＋BHTP-2 ＋ strong gel is adopted.This system has been used at No.7 Well Group of Southern Block of BZ25-1 Oilfield with the accumulative oil production increase of 2.4 × 104m3,showing that the application effect of this system is significant.

关 键 词：窄河道 油藏 深部液流转向 凝胶 颗粒 驱油效率 

分 类 号：TE34[石油与天然气工程—油气田开发工程]