钻机的主要参数有钻压、扭矩、转速等。一、钻压的确定美国在进行钻机性能估算时,钻压是根据每把刀的载荷来选取的,这比根据每时钻头直径所需要的负荷更为准确。对12时型的滚刀,在反井(天井)钻进中,每把刀的钻压可达25000—30000磅(11.2—13.4吨)而在竖井钻进中,使用这种滚刀每把刀的钻压很少超过12000—15000磅(5.4—6.8吨)。钻压差别的原因是由于刀具的加压 The main parameters of drilling rig weight-pressure, torque, speed and so on. First, the determination of weight-bit Drill performance estimates in the United States, the weight-on-bit is based on the load of each knife to choose, which is more accurate than the load required according to the diameter of each drill. For a 12-hour hob, the jacking pressure per blade can reach 25,000-30,000 pounds (11.2-13.4 tons) during the drilling of the inverted well (patio). In the case of shaft drilling, The bit weight rarely exceeds 12,000-15,000 pounds (5.4-6.8 tons). The difference in weight-on-bit is due to the tool’s pressure