石油钻采工艺2009，Vol.31Issue(5)：77-80,4.
注水井化学降压增注剂室内研究
Indoor study of chemical agents for injection well stimulation
付亚荣1
作者信息
- 1. 华北油田公司第五采油厂,河北,辛集,052360
- 折叠
摘要
Abstract
The reservoir of some oilfields in southern Jizhong area features in small throat size and low permeability, and the seepage law of fluids does not conform to the Darcy's law. Although the sand body of some reserves can be controlled by well patterns, effective driving system is still difficult to be set up. So injection wells are characterized by poor absorption and high injection pressure. The technology using chemical agents for injection well stimulation is to use FYR-ZZ, a friction reducing and flooding agent by synthesizing suitable surfactants, low-damage acid and adjuvant, to improve the absorbing capacity of low permeability oilfields. Results of the indoor study show that the FYR-ZZ has advantages in stimulation and can be used for decreasing interfacial tension, changing rock wettability, anti-swelling, and inhibiting microbial. The result of microscopic oil displacement experiment shows that the FYR-ZZ system may be used to displace the residual oil in pore, change the wettability of pore, and enable the lipophilic pore surface to be converted into hydrophilic surface. It provides technical reference for simulation of injection wells with low permeability.关键词
注水井/中低渗/化学/降压增注Key words
injection well/ mid-low permeability/ chemistry/ stimulation分类
能源科技引用本文复制引用
付亚荣..注水井化学降压增注剂室内研究[J].石油钻采工艺,2009,31(5):77-80,4.
