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1·The sand bailer is also used as a bottom hole sampler.

捞砂筒也可用作业井底取样器。

2·The device can move the seal part from the bottom hole to the wellhead.

该工具将密封部位由井底移至井口，适用于各种规格的大直径套管固井。

3·The stress level is the key factor that affects the fatigue life of bottom hole assembly.

钻具组合在井下所承受的应力水平是影响其疲劳寿命的一个关键因素。

4·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。

5·The basic assumptions, equations and boundary conditions for bottom hole assembly (BHA) analysis were discussed.

讨论了下部钻具组合分析的基本假设、基本方程和相应的边界条件。

6·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。

7·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。

8·The bottom hole pattern of a well is the aggregation of the pits on the bottom rock cut by the bit teeth in the course of drilling.

井底模式就是钻头在钻凿岩石的过程中，钻头牙齿在井底岩石上打出凹坑的集合。

9·The borehole deviation correction technique with bottom hole assembly and its application in Xinjiang oil Well YX-1 were introduced.

介绍了井底钻具组合纠偏技术及其在新疆YX - 1油井中的应用。

10·Validity and feasibility of the finite difference time domain method is demonstrated by the echo-wave signal of a flat bottom hole block.

通过与平底孔试块实际缺陷回波信号的对比，验证了脉冲超声波有限差分法模拟计算的有效性和正确性。

井底

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

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；

2·Darcy's law indicates that formation pressure of an oil well has some correlativity with wellbore fluid producing volume and bottom hole flowing pressure.

达西定律表明，油井地层压力与井筒产液量和井底流压具有相关性。

3·The result shows that the main reasons are high bottom hole temperature, corrosion of drilling tool during storage and drilling process, high value of formation drillability, and multi-fault.

结果表明，井底温度高、钻具存放及钻井过程中的腐蚀和地层可钻性级值高且断层多，是该地区钻具失效的主要原因。

4·Under the conditions of constant pressure boundary, when the time approaches to infinity, the curve between the flow rate and the bottom hole pressure is so called conventional IPR curve.

对于定压边界，当时间趋向于无穷大时，气井产量与井底压力关系曲线即是我们常用的IPR曲线（不妨称为常规IPR曲线或稳定IPR曲线）。

5·The quantitative relationship between the motion and force of cone bits has not been established up to now owing to the complexity of the work of the bits in bottom hole.

由于牙轮钻头在井底工作的复杂性，目前还没有从理论上建立牙轮钻头的定量运动与受力关系。