酸液在酸压裂缝内流动时，有少数较大的岩石孔隙或天然裂缝首先受到过量酸液的溶蚀而迅速增长形成蚓孔，使滤失主要在蚓孔内发生。
When acid fluids flow in artificial fractures, some larger pores or natural fractures are dissolved by acid to enlarge into wormholes so that acid mainly leaks through wormholes.
本文用试验方法研究了石油钻井过程中井底岩石零孔隙压力条件下的岩石可钻性。
Rock drillability of rock samples was studied by means of experiment under zero pore pressure and simulated down hole conditions.
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