低渗透砂岩气藏一般原生水饱和度高，气藏显然没有水层但产水较大，这种现象很难解释。
There is an intricate phenomenon that the content of primary water is high in sandstone gas reservoir with low-permeability, but several gas wells can produce water.
产液剖面对比看出，加密后高含水层所占比例较大，且受井距影响较大。
Correlation of the produced fluid profiles before and after shows that there were more high water cut layers and much influence by well spacing after infilling.
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