利用该模式并结合钻柱力学三维分析，可以预测定向井井眼轨迹，还可以利用定向井井史资料，反求有关系数。

Combined with the BHA analysis, the models are used to realize the prediction of drilling trajectory and to back-calculate the related coefficients from the well history information.

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本文从油井压裂后抽汲求产的井底压力分析出发，对压力恢复资料进行校正处理，得到了较好的恢复曲线，取得了准确的地层参数。

From analyzing the down hole pressure to calculate flow rate, by correction and process for these data, a better build up curves and accurate formation parameters are achieved.

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压力恢复法求渗透率是利用RFT测井资料估算地层渗透率的方法之一。

Obtaining formation permeability using pressure build-up method is one of estimating the formation permeability methods according to RFT logging data.

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