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针对目前钟摆钻具和满眼钻具在大倾角地层、自然造斜力较强地区，其防、纠斜效果不尽人意的现实，提出了一种新型铰接式直井防、纠斜钻具，建立了该钻具组合的力学模型，阐述了其防、纠斜机理。详细分析了若干钻具结构参数和钻井参数对钻头侧向力的影响，并将其钻头侧向降斜力与钟摆钻具加以对比。通过现场试验表明，该钻具组合在大倾角硬地层正常加压快速纠斜钻进中，降斜效果明显，机械钻速达到了正常钻进速度，为易斜区防斜打直提供了一种新的钻具组合类型，发展了防斜钻井技术，对加速油田勘探开发具有重要意义。
In view of the fact that the pendulum drill and the eye-drill have the unsatisfactory results of anti-tilting and skewing at large dip formations and strong natural berthing formations, a new type of hinged vertical well anti-skew drilling tool is proposed The mechanical model of the drill assembly is described, and its anti-skew mechanism is described. The influence of some drilling parameters and drilling parameters on the lateral force of drill bit is analyzed in detail, and the lateral descending force of drill bit is compared with the pendulum drill. The field tests show that the drilling tool combination can be used in the rapid correction drilling with normal pressurization in the steep-angle hard formation. The descending effect is obvious, and the penetration rate of the machine tool reaches the normal drilling speed, providing a The new type of drilling assembly, the development of anti-inclined drilling technology, to accelerate the exploration and development of oil fields is of great significance.