When the flowing bottom hole pressure decreases to a critical value, the matrix will begin to yield .
随着井底流压降至某一临界值， 岩石骨架开始出现屈服。
The paper presents the conception of bottom-hole critical flowing pressure and secure production of oil well. It is of practical significance for management of oil well.
提出了油气井临界井底流压和安全产量的概念，对科学地管理油气井有着一定的现实意义。
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