密实砾石充填
compacted gravel placement
不污染的砾石充填液
nondamaging gravel packing fluid
砾石充填密封座
gravel pack seal bore receptacle
实际尺寸的砾石充填模型
full-scale gravel packing model
用高粘携砂液作业的砾石充填
viscous carrier placed pack
装有隔板的砾石充填装置
baffled gravel-placement device
泵后加砂砾石充填
gravel injection down-stream of the pump
常规砾石充填
conventional type gravel packing