... well-drill method 钻井方法 well-type ionization chamber 井型电离室 Werner complex 维尔纳配合物 ...
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well drill method 吊绳冲魂进法
Geostress distribution is used to guide drill track, offering a new method to optimize well track.
应用地应力分布指导钻井轨迹，为井眼轨迹优化提供了新的研究方法。
According to the mechanics analysis method of BHA and the real work state of drill string in inclined straight well, a mechanical model of BHA is presented.
根据现有钻具力学分析方法和斜直井钻具的实际工作状态，建立了斜直井下部钻具力学分析模型。
Thus the finite element method is used to study the duplex nonlinearity (geometric nonlinearity and contact nonlinearity) of the drill string at the well bottom.
针对以上难题，利用有限元法研究了钻柱在井底的二重非线性(几何非线性和接触非线性)问题。
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