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目前，采用连续造斜的人工弯曲方法，已开始在岩心钻探定向孔施工和纠斜中广为使用。连斜造斜时，钻头在孔底工作条件和要求不同，普通钻头已不适用，必须采用特殊的钻头结构。现时用于连续造斜的主要工具有两类，一为连续造斜器，一为液动螺杆钻具。LZ连续造斜器的工作原理如图1。钻具在轴向压力P的作用下，滑块被推出，滚轮与井壁接触，对井壁作用一侧向力Q；与此同时，在钻头上产生一造斜力A。即钻头在轴向力P和造斜力A同时作用下工作，既进行轴向切削，又进行侧向切削，钻孔轨迹偏离钻具原轴向。现分析连续造斜钻进钻头形成孔身轴线起始点C的情况。
At present, the artificial bending method using continuous slanting has been widely used in the construction and skew correction of the directional drilling of core drilling. Inclined oblique incline, the drill bit in the bottom of the working conditions and requirements of different ordinary drill bit is not applicable, you must use a special bit structure. At present, there are two main types of tools for continuous slashing. One is a continuous whipstock, and the other is a hydraulic screwdriver. LZ continuous whip work principle shown in Figure 1. Under the action of the axial pressure P, the sliding block is pushed out and the roller comes into contact with the shaft wall to exert a lateral force Q on the shaft wall. Meanwhile, a diagonal force A is generated on the drill bit. That is, the drill bit works under the simultaneous action of axial force P and antiltting force A. Both the axial cutting and the lateral cutting are performed, and the drilling trajectory deviates from the original axial direction of the drilling tool. Now analyze the continuous formation of drilled drilling bit hole axis starting point C of the situation.