A new understanding for the effect of filtrate cake upon dual contacts is presented as well as the cementing and sealing to barr...

• 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。