引用本文:赵光,戴彩丽,程明明,周丽,张清璞. 石南21井区低渗透油藏弱冻胶深部调剖技术[J]. 石油与天然气化工, 2011, 40(6): 594-597,539.
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石南21井区低渗透油藏弱冻胶深部调剖技术
赵光,戴彩丽,程明明,周丽,张清璞
作者单位
赵光 State Key Laboratory of Heavy Oil Processing,China University of Petroleum,Qingdao 266555,Shandong,China).CHEMICAL ENGINEERING OF OIL & GAS,VOL.40,NO.6,pp594～597,2011(ISSN 1007-3426,IN CHINESE 
戴彩丽 State Key Laboratory of Heavy Oil Processing,China University of Petroleum,Qingdao 266555,Shandong,China).CHEMICAL ENGINEERING OF OIL & GAS,VOL.40,NO.6,pp594～597,2011(ISSN 1007-3426,IN CHINESE 
程明明 State Key Laboratory of Heavy Oil Processing,China University of Petroleum,Qingdao 266555,Shandong,China).CHEMICAL ENGINEERING OF OIL & GAS,VOL.40,NO.6,pp594～597,2011(ISSN 1007-3426,IN CHINESE 
周丽 State Key Laboratory of Heavy Oil Processing,China University of Petroleum,Qingdao 266555,Shandong,China).CHEMICAL ENGINEERING OF OIL & GAS,VOL.40,NO.6,pp594～597,2011(ISSN 1007-3426,IN CHINESE 
张清璞 State Key Laboratory of Heavy Oil Processing,China University of Petroleum,Qingdao 266555,Shandong,China).CHEMICAL ENGINEERING OF OIL & GAS,VOL.40,NO.6,pp594～597,2011(ISSN 1007-3426,IN CHINESE 
摘要:
针对石南21井区油藏特点,开展了弱冻胶深部调剖技术的研究。室内试验研究了弱冻胶的封堵性能,并研究了注入量、注入速度、注入时机、堵剂放置位置和组合顺序对弱冻胶驱油效果的影响。研究结果表明:弱冻胶体系对油相渗透率影响较小,能够有效改善剖面非均质性;当弱冻胶注入量0.3Vp、堵剂注入注采井距3∶10时,单位体积堵剂的采收率增值最大;弱冻胶注入速度越小,水驱后转注时机越早,驱油效果越好;弱冻胶组合顺序为先弱后强的采收率增值大于组合顺序为先强后弱的采收率增值。
关键词:  低渗透油藏  深部调剖  注入参数  封堵能力  弱冻胶  采收率
DOI：
分类号:TE357.4
基金项目:山东省杰出青年基金“提高采收率与采油化学”(JQ201013);国家自然基金科学基金(51174221)
Study on the In-Depth Profile Control Technology of Weak Gels for Low Permeability Reservoir in Shinan 21 Well Area
Zhao Guang1, Dai Caili1, Cheng Mingming1
State Key Laboratory of Heavy Oil Processing,China University of Petroleum,Qingdao 266555,Shandong,China).CHEMICAL ENGINEERING OF OIL & GAS,VOL.40,NO.6,pp594～597,2011(ISSN 1007-3426,IN CHINESE
Abstract:
Based on the characteristics of oil reservoir in Shinan 21 well area,technology of weak gels for in-depth profile control was studied.Plugging capacity of weak gels was investigated in lab.Moreover,the various factors such as injection pore volume,injection rate,injection timing,injection depth and injection sequence on the recovery were also investigated in laboratory.The experiment indicates that the system has few effects on oleic permeability,which can improve profile heterogeneity effectively.Besides,enhanced recovery of unit volume reached the maximum when the injection pore volume was 0.3Vp and the inject-produc distance of weak gel reached 3∶10.The smaller the injection rate of weak gel,the earlier the in-depth profiling,the larger the enhancement in oil recovery was.The recovery of the weak gel injecting in order stronger after weaker was larger than that in order weaker after stronger.
Key words:  low permeability reservoir  in-deep profile control  injection parameters  plugging capacity  weak gel  enhance oil recovery