限流压裂过程中射孔孔眼摩阻变化研究

摘要

在限流压裂施工中，往往由于孔眼摩阻的计算偏差造成限流压裂的失败。本文在原有孔眼摩阻计算公式的基础上进行了模型改进。另外，本文提出用流体力学对孔眼内壁上流体流速分布研究。%The failure of limited entry fracturing in practices are often resulted from calculating deviation of friction of perforations. In this paper the model of the friction computational formula is modified based on the old one. Hydrodynamics is introduced in the paper to investigate the flow rate distribution of the fluid on the lining of perforations as well.