The invention discloses an
reagent for breaking and removing a
boron cross-linking agent. The
reagent comprises the following components in percentage by weight: 0.01 to 0.1 percent of
peroxide, 0.01 to 0.05 percent of a gel breaking activator, 0.02 to 0.06 percent of a saccharide
accelerant, 0.08 to 0.016 percent of a
demulsifier, 0.08 to 1 percent of a bactericide and 0.2 to 0.3 percent of a pH
regulator, with the balance being water. The invention further discloses a preparation method of the
reagent for breaking and removing the
boron cross-linking agent. The agent is prepared by mixing the
peroxide, the gel breaking activator, the saccharide
accelerant, the
demulsifier, the bactericide, the pH
regulator and the water. The reagent can effectively break and remove the
boron cross-linking agent, rapid
viscosity can be reduced to a low degree within a short time, gel breaking time is short, the
viscosity can be reduced to about 2 after 60 min, and gel breaking efficiency is high; and meanwhile, common agents such as the
peroxide and the gel breaking activator are adopted, so treatment cost is low, an application range is wide, and the
actual use requirements are met.