The technology of hole trajectory primary sect ion is the key of drilling in re entry horizontal Wells.

侧钻水平井轨迹起始段工艺技术，是侧钻水平井钻井工艺的关键技术。

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Hole trajectory control techniques and safety drilling measures of high Angle deviated Wells in this block were analyzed and summed.

总结分析了曲104块大斜度井直井段、造斜段、稳斜段井眼轨迹控制技术要点以及井下安全钻井措施。

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This paper reviewed the hole trajectory control of three interval profiles directional Wells that drilled in past years in Jiangsu exploration area.

介绍了历年来江苏探区三段制定向井井眼轨迹控制情况。

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The Atrocities Prevention Board filled a major hole in U.S. foreign policy and sets a promising trajectory for increasing the U.S. and international community's ability to prevent mass atrocities.

CNN: Stop atrocities before they start