河南油田低强度调剖体系研究  

Study on profile control system with low-intensity in Henan oilfield

作　　者：吕帅[1] 刘文华[1] 皇海权[1] 刘艳华[1] 梁杨[1] 束华东[1] 

机构地区：[1]中国石化河南油田分公司石油勘探开发研究院,河南南阳473132

出　　处：《石油地质与工程》2010年第4期120-122,共3页Petroleum Geology and Engineering

摘　　要：对铬体系和酚醛体系两种低度交联体系的成胶时间和强度进行了实验,实验结果表明:交联剂浓度相同,聚合物浓度越高,成胶时间缩短、成胶强度越大;聚合物浓度相同,交联剂浓度越高,成胶时间越短,成胶强度越大。并联岩心实验结果表明:低度交联可以有效堵塞大孔道,扩大后续水驱的波及体积,提高采收率。The laboratory study on gelation time and the gel strength of Cr-system and phenolic aldehyde-system of low degree cross-linking has been carried out.The results indicate that under the same concentration of crosslinkers, the higher the concentration of the polymer,the shorter the gelation time and the greater the gel strength;while under the same concentration of polymer,the higher the concentration of the crosslinkers,the shorter the gelation time and the increased greater of the gel strength.Therefore,a twin-tube parallel core experiment using low-crosslinked agent has been carried out.The results show that the low degree of cross - linking can effectively plug the large pores and expand the swept volume of water flooding so as to enhance oil recovery.As a result,the series of low- crosslinked system is recommended in the paper.

关 键 词：交联剂 聚合物 低度交联 岩心实验 采收率 

分 类 号：TE357.431[石油与天然气工程—油气田开发工程]