规定的砾石尺寸范围
specified gravel size range
实际尺寸的砾石充填模型
full-scale gravel packing model
分割与组合
partition and compounding
缝合组合
Through calcaneus suture combination
被砾石与地层砂混合物充填的射孔孔道
gravelsand filled perforation tunnel
不污染的砾石充填液
nondamaging gravel packing fluid