well-drill method [地质] [油气] 钻井方法
On the contrary, the back well drill method is from bottom to top, which is suitable for the small inclined Angle, but not for the large shaft section.
反井法施工斜井为自下而上进行，适合倾角不大的斜井施工，但不适宜运用于断面较大的斜井。
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。
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