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从固井二界面的胶结机理出发．联系现场实际问题，通过对二界面封固系统的基本分析，阐述了二界面封固系统的井下状态．确定了影响二界面的四大类基本因素。开展了二界面。性质的试验研究，给出了初步的试验结果，对滤饼在二界面的作用提出了新的认识，对隔层的胶结和密封以及高压层和低压层的固井质量问题也提出了相应的认识。
Starting from the cementation mechanism of cementing interface. In connection with the practical problems in the field, the downhole status of the two-interface sealing system was expounded through the basic analysis of the two-interface sealing system. Four basic types of factors that affect the second interface have been identified. Launched a two interface. Nature of the pilot study, given the preliminary test results, the role of the filter cake in the second interface proposed a new understanding of the cementation and sealing of the high-pressure and low-pressure layer of the well cementing quality problems also put forward the corresponding understanding.