The simulations show that microcapsules, travelling across a surface within the flow of a liquid, should naturally cluster around points of damage.

模拟显示微聚体，可以随着液体的流动通过表面，能自动的聚集在损伤部位。

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Sand washing in horizontal Wells requires that the sand are carried out of surface without new damage on pay zones. This requires the reasonable flow rate and pressure in horizontal Wells.

水平井冲砂既要做到将砂粒冲出地面又不能在井底对储层造成新的污染，这就要求采取合理的水平井冲砂液流量和冲砂压力。

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