论文部分内容阅读
木文针对大庆油田发生钻头水力冲蚀现象,根据休斯公司提出的牙轮钻头水眼入口处泥浆流速不应超过21.4m/s的建议,对冲蚀钻头中装有大喷嘴的入口处泥浆流速进行了校核。结果表明,直径大的喷嘴入口处泥浆流速全都超过了休斯公司的建议值。同时,为避免水力冲蚀现象,结合钻井实际提出了几点建议,对保证钻井安全生产具有指导意义。
In view of the hydraulic erosion of bit in Daqing Oilfield, according to the suggestion of Hughes Company that the flow velocity of mud at the entry of the eye of roller cone bit should not exceed 21.4m / s, the velocity of mud flow at the entrance with large nozzle in the erosion bit Checked. The results show that the mud flow rate at the entrance of the large diameter nozzle all surpassed Hughes company’s recommended value. At the same time, in order to avoid the phenomenon of hydraulic erosion, some suggestions are put forward in combination with drilling practice, which is of guiding significance for ensuring the safe production of drilling.