Abstract: In Jimsar，the method of dense cutting+large section and multi-cluster is applied to most of the horizontal shale oil wells that have been subjected to volume fracturing for stimulation. In order to further improve the stimulation effectivity，the method of temporary plugging is used in field to promote even fracture initiation. To evaluate the effectivity of temporary plugging，this paper interprets the reservoir and engineering parameters before and after temporary plugging based on pump-off pressure drop data using fracturing software. According to the comparison and verification made by well testing software，the interpretation results are similar，and the conclusions are reliable and effective. This method is simple，easy to operate，and cost-effective，and provides powerful guidance for field test of temporary plugging. The study results show that after temporary plugging，the closure time of fractures is prolonged，the efficiency of fracturing fluid is improved，and the treatment zone permeability is reduced，which prove that the temporary plugging agent is effective in satisfactorily plugging areas with good physical properties.

Key words: pump-off pressure drop analysis, shale oil, horizontal well volume fracturing, temporary plugging effectivity, fracturing software, well testing software

摘要： 吉木萨尔页岩油体积压裂水平井主要采用密切割+大段多簇的方法进行储层改造，为进一步提高改造效果，现场通 过暂堵方法促进裂缝均衡起裂。为评价暂堵有效性，基于停泵压降数据，利用压裂软件解释暂堵前后储层及工程参数，通 过试井软件进行对比验证。两类软件解释结果相近，结论可靠有效，且方法简单、易操作、节约成本，为现场暂堵试验提供 了有力指导。研究结果表明，暂堵后裂缝闭合时间延长，压裂液效率提高，改造区渗透率减小，暂堵剂有效封堵物性较好区 域，暂堵有效。

关键词: 停泵压降分析, 页岩油, 体积压裂水平井, 暂堵效果, 压裂软件, 试井软件