摘要
通过在柴油中加入两性高聚物、交联剂、O/W型表面活性剂、增稠剂等组成油基凝胶选堵剂，遇地层水或注入水形成强度很高的凝胶，该凝胶遇水愈加粘稠，强度增大；遇油愈加稀释，强度降低，实践证明可以对油井地层产生分层选择性堵水作用。本文给出了对于不同含水率地层堵剂的作用情况、堵剂中交联剂和表面活性剂的筛选、不同温度对堵剂性能的影响、堵剂的岩心封堵性能及该堵水技术在吉林油田的现场应用效果等。
A new plugging agent is developped, it can form strong gels that becomes strongr by water and weaker by oil. It has selectivity to oil formation. In this paper, the selection of polymer and surfactant, the effect of different water cut and temperature to the properties of agent,and field tests are described.
出处
《断块油气田》
CAS
1999年第4期56-58,共3页
Fault-Block Oil & Gas Field
关键词
高含水油井
选择性堵水
油基
凝胶
堵水剂
High water cut oil well, Selective water shutoff,Viscosity, Surfactant, Jilin Oilfield
