胜利油田注聚区块深调防窜技术研究与应用

Research and Application of Deep Profile  Mod if ica tion and Channeling Prevention in Polymer
Flooding Block

 邵红云 陈雷 李林辉 赵玲

 胜利油田有限公司采油工艺研究院

Oil Production Technology Research Institute, Shengli Oilfield Co1 L td1, Dongying
257000, China

 　 长期的注水冲刷使得地下油藏中高渗透条带或大孔道的分布更加普遍,导致注聚过程中很容易发生高浓度聚合物“窜流 ”现象,这不仅造成聚合物浪费,而且难以形成高质量的聚合物段塞。结合注聚前、注聚过程中、注聚后转后续水驱3个不同注聚阶段所具有的开发特征有针对性的开展了堵剂的筛选研究和堵调工艺的优化研究,并对现场实施效果进行了总结分析,深调防窜是贯穿注聚全过程的一项有效封堵高渗透条带、保证注聚开发效果的必不可少的剖面调整措施。

The distribution of high permeable zone or large holes
caused by long-term water flooding is becoming widesp read,
which leads to channeling of high concentration polymer
during polymer flooding. This phenomenon not only results in
waste of expensive polymer, but also makes it difficult to form
polymer p lugwith high quality.In this paper, the necessity of
p rofile control and channeling p revention in polymer flooding
area were discussed. And it also deals with the screening of
blocking agent and op timization of p rofile control technology
in accordance with the distinct development characteristics of
p re-polymerflooding, polymer flooding and succeeding water
flooding after polymer flooding. And the app lication effect of
the technology discussed above confirms that deep p rofile
control and channeling p revention is an indispensable measure
to p lug high permeable zone and strive for ideal polymer
flooding effect.