Keywords Delay Action Crosslinker;Bichromate/Lignosulfate/Thiourea Redux System;Polymer/Chromium Gelling Fluid;Injectivity Profile Modificator;Preparation;Delay Action Mechanisms;

• 延缓交联剂;重铬酸钠/本质素磺酸钠/硫脲氧化还原体系;聚合物铬冻胶;调剖剂;制备;延缓作用机理;