文章简介-论文论著 关键词： 数值模拟；三维有限元模型；射孔密度；射孔方位角 [gap=1270]Keywords: numerical stimulation; 3-D finite element modal; perforation density; perforation phrase
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主要结论包括射孔密度和射孔方位角是影响地层破裂压力的主要因素。
Perforation density and orientation angles are the most important factors of all to affect formation fracturing pressure.
射孔密度、射开厚度、孔眼直径及临界流速增加时，砾石充填最小排量也增加。
The minimum injection rate of gravel pack increases while increasing the diameter of perforation tune, the perforation density, the perforated thickness and the critical velocity.
计算和试验结果都表明，射孔后套管的极限承载能力均有不同程度的下降，下降幅度与射孔密度有关。
The results of calculation and test show that the strength of casing reduces along with the perforation density increases.
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