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1·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。

2·The monitor can automatically measure the annular liquid level changes at well head, and then calculate the bottom hole pressure.

该仪器能够从井口自动监测抽油井内环空液面深度变化，通过分析计算获得井下压力的恢复情况。

3·The reservoir information from flow response on condition of stable bottom hole pressure helps to determine reservoir information.

定井底流压下流量响应所反应出的油藏信息，有助于确定油藏参数。

4·In routine overbalanced drilling, the bottom hole pressure towers above the formation pressure so that the mud fluid will leak into the formation.

常规过平衡钻井方式打开油气层时，井底压力高于地层压力，钻井流体会向地层渗滤甚至漏失。

5·The abandonment formation pressure(AFP) of gas well is usually calculated by stable productivity equation and abandonment flowing bottom hole pressure.

通常人们采用气井某一时刻的稳定产能方程结合废弃井底流压来计算废弃地层压力。

6·With the selection of a gas liquid computational model to calculate bottom hole pressure and compare with observed pressure, its relative error is less than 2%.

选用气液两相计算模型计算井底压力并和实测井底压力进行了对比分析，相对误差均小于2 %；

7·The practice proved that the technology can reduce flowing bottom hole pressure, minish interlayer interference under reasonable injecting-producing pressure system.

实践证明，在合理的注采压力系统下，潜油电泵可以应用于低渗透油田。

8·And the bottom hole pressure in different depths is predicted, which can be found that the casing annulus velocity declines with the depth increasing at different hole depth.

并对不同井段处的井底压力进行了预测，发现在不同的井身深度条件下，其环空流速随井身深度的增加而降低。

9·For gas Drilling, the bottom hole pressure is far smaller than the formation pressure, so that the gas in the reservoir come out to the hole continuously and get out of the well.

当用气体钻井打开储层时，由于钻进时井筒流动压力远远低于地层孔隙压力，储层流体就不断地流入井筒，并返出到地面。

10·The effects of the bottom hole pressure, initial hydrate saturation, and absolute permeability of the reservoir on the decomposition results were analyzed using numerical simulation.

应用数值模拟的方法，分析了井底压力、水合物初始饱和度和储层绝对渗透率对分解的影响。