Easily degradable plugging agent and preparation method thereof

The invention relates to the technical field of plugging agent manufacturing, and particularly discloses an easily degradable plugging agent and a preparation method thereof. The easily degradable plugging agent is mainly prepared from, by weight, 80-120 parts of polyacrylamide, 30-50 parts of acrylic acid, 15-30 parts of polysaccharide, 0.5-3 part of alkali, 0.5-3 part of a cross-linking agent, 3-5 parts of an oxidizing agent, 1-3 parts of urea, 1-2 parts of a polymerization initiator, 160-200 parts of bentonite, 0.5-2 part of viscose fibers, 0.2-0.8 part of a dispersing agent and 280-350 parts of water. The easily degradable plugging agent has the advantages of high plugging rate and high degradation speed. 本申请涉及封堵剂制造的技术领域，具体公开了一种易降解封堵剂及其制备方法，易降解封堵剂主要由以下重量份的原料制得：聚丙烯酰胺80-120份，丙烯酸30-50份，多糖15-30份，碱0.5-3份，交联剂0.5-3份，氧化剂3-5份，尿素1-3份，聚合引发剂1-2份，膨润土160-200份，粘胶纤维0.5-2份，分散剂0.2-0.8份，水280-350份。该易降解封堵剂具有封堵率高、降解速度快的优点。