Temporary plugging technology is widely used in the volume fracturing of horizontal wells. However, conventional temporary plugging balls and particles can’t effectively plug perforations during fracturing. This research designed a completely degradable, tassel-shaped rope knot temporary plugging agent, and it has an excellent degradation and plugging performance. The knot temporary plugging agent’s solubility, crushing rate, temperature and shear resistance were evaluated. The knot temporary plugging agent can completely degrade into CO₂ and water in a clean water environment. According to the physical model of the transparent tube, the knot temporary plugging agent can quickly enter the perforation with the help of the tassel-shaped wings to form an effective plugging. Compared with the conventional temporary plugging ball, the ability to enter the perforation and the plugging performance were superior. The field application of the knot temporary plugging agent in MaHW#5 well showed that the temporary plugging effect was good.

暂堵技术广泛应用于水平井的体积压裂。然而，传统的临时封堵球和颗粒在压裂过程中无法有效封堵射孔。本研究设计了一种完全可降解的流苏状绳结临时堵漏剂，具有优异的降解堵漏性能。对结节暂堵剂的溶解性、破碎率、温度和抗剪性能进行了评价。结暂堵剂可完全降解成CO ₂和干净的水环境中的水。根据透明管的物理模型，打结临时堵漏剂可以借助流苏状的翅膀快速进入射孔，形成有效堵漏。与常规临时封堵球相比，进入射孔的能力和封堵性能更优越。结暂堵剂在MaHW#5井现场应用表明暂堵效果良好。