介绍化学吞吐工艺过程和作用原理,总结了A18井原油与化学吞吐剂的适应性评价过程,包括化学吞吐剂浓度的选择、不同油水比时的乳化降粘性能、乳化体系降粘率、油水界面张力的测量、润湿能力的定性考察和对原油破乳的影响等研究工作。在此基础上进行现场试验,对施工后的效果进行了分析,提出了存在的问题和建议。 The chemical huff-and-puff process and its action principle are introduced. The adaptability evaluation process of crude oil and chemical huff-and-puff agent in well A18 is summarized, including the choice of chemical huff-and-puff agent concentration, the emulsification and viscosity reduction performance under different oil / water ratio, Tensile measurement, wetting ability of the qualitative inspection and the impact of crude oil demulsification and other research work. On the basis of this, a field test was carried out, the effect after construction was analyzed, and the existing problems and suggestions were put forward.