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针对油田注入水水质差和各种改造措施等造成的近井地带污染堵塞，以及油井酸化后排酸效果差等问题，根据液体喷射原理研究出一种既能对地层堵塞进行降压解堵、又能对酸化井进行降压排酸的降压解堵排酸技术。介绍了该技术的井下管柱组成、工具结构特点、选井条件、工艺原理，并对现场应用的总体情况和应用效果进行了综合分析与对比。经大量的现场应用证明：降压解堵排酸技术能有效地排出地层中的残酸、酸反应物以及各种堵塞杂质，减少地层污染，提高地层渗透能力。
In view of the problems of poor injection water quality and various reconstruction measures in the oilfield, such as the blockage of near-wellbore contamination and poor drainage effect after acidizing the oil well, But also on the acidification wells depressurized row of acid depressurization Jiegai acid technology. The composition of the downhole pipe string, the structural features of the tools, the well selection conditions and the principle of the technology are introduced. The overall situation and the application effects of the technology are analyzed and compared comprehensively. After a large number of on-site applications prove that the depressurization and plugging and drainage technology can effectively discharge residual acid, acid reactants and various plugging impurities in the formation to reduce formation contamination and improve formation permeability.