目前可钻性指标的确定方式主要有两大类：一是经验法，采用实际机械钻速来表示，它往往受地层、钻头类型及钻井参数的影响，故使该指标的可比性和适用范围受到限制；二是在室内通过测试岩石试样的力学性能，或模拟真实钻进条件采用微钻头来研究可钻性指标，微钻头法使用实际岩 At present, there are two main ways to determine the drillability index: one is the experience method, which is expressed by the actual ROP, which is often affected by the formation, bit type and drilling parameters, so the comparability and scope of the index Is limited; the second is to test the mechanical properties of rock samples indoors, or simulate the actual drilling conditions using micro-drill to study drillability indicators, micro-drill method using the actual rock