最后计算了井底压力变化规律。

Finally, the varied bottom-hole pressure is calculated.

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通过建立局部坐标系，得到了裂缝性地层井壁发生失稳的弱面角度随井底压力变化的规律。

Then, the influence of bottom hole pressure on the failure range of weak plane is analyzed for bore holes in naturally fractured formation, with the help of the local coordinate system.

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无限大地层中—口间歇试采生产井的地层压力分布及井底流压变化规律；

The rule of reservoir pressure distribution and bottom hole flowing pressure alteration of a periodic trial-produce well in infinity subterranean formation.

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