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针对注水井近井地带地层堵塞和酸化井排酸困难等问题，利用喷射原理研究了降压解堵排酸技术。文中介绍了该技术的工艺原理、工作参数的确定、工艺特点和现场应用等情况。经过现场应用证明，降压解堵排酸技术确实能有效地排出地层中的残余酸、酸反应物以及各种堵塞杂质，减少地层污染。
In view of the problems such as the blockage of strata in the injection well near the wellbore and the difficulty of acid exchanging in the acidizing well, the jet depressurization technology of depressurization and plugging is studied. The paper introduced the technology principle, the determination of working parameters, process characteristics and field applications. After field application proves, the technology of depressurization and plugging and draining acid can effectively discharge the residual acid, acid reactants and various blocking impurities in the stratum to reduce formation pollution.