Keywords Oxidant/Activator Gel-Breaking System;Gel Breaking-down at Low Temperatures;Hydroxypropyl Guar Gum/Borate Gelling Fracturing Fluid;Formulation;Field Tests;Yanchang Oil Field in North Shaanxi;

• 氧化剂／激活剂破胶系统;低温破胶;羟丙基瓜胶冻胶压裂液;配方研究;现场试验;陕北延长油田;