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深井钻井的过程中如果存在了倾斜的部分,则就会导致了该部分的扭矩比较大、工期比较长、扩孔效果差等难题,因为,需要深入的研究定向随钻技术。充分的分析了国内外该技术的成果的基础上,最好的工具就是双心扩孔工具,同时应该配备单弯螺杆作为主要的动力输出结构。经过实际是试验发现,双心钻头中使用的螺杆动力进行钻井可以达到提升协斜度较大的井段施工,并且有很好的扩孔效果,施工周期大大的缩短,是一种很好的扩孔作业方式。
If there is a tilted part in the process of deep well drilling, the torque in this part will be relatively large, the construction period is relatively long, and the effect of expanding the hole is poor. Therefore, directional drilling technology needs to be deeply studied. Based on a thorough analysis of the results of this technology both at home and abroad, the best tool is a double-concentric reaming tool and a single-bend screw as the main power output structure. After the actual test found that the use of double-heart drill bit screw drilling can improve the slope of the co-slope to enhance the construction of a larger section, and have a good reaming effect, the construction period is greatly reduced, is a good Reaming operations.