At same permeability,the macroscopic viscosity after shearing increases with the increase of concentration of polymer.
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The simulation results show that, at the same relief discharge, the bigger the permeability is, the bigger the extrusion pressure of casing damage is.
研究表明：在放喷流量相同的情况下，渗透率越低，储层厚度越薄，压差越大，套管承受的挤压力就越大。
If Wells produce at natural productivity, their flow rates decline with the same speed as the mid-and high-permeability reservoirs.
若油井以自然产能生产，油井产量的递减速度并不快，而是与中高渗透储集层基本相同。
The consolidation tests and permeability tests can be carried out at the same time, and the permeability characteristics of the soil specimen under different load can be studied.
可以同时进行固结试验、渗透试验，研究在外加荷载作用下土样的渗透特性。
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