摘要
双摆钻具作为一种新型钻具正运用于各大油田,但是目前没有文献阐明其工作原理。从钻进时钻具形态对钻速影响的角度分析了常规钻井方式效率低下的原因,介绍了双摆钻具工作的原理,并与螺杆钻具及扭力冲击器的应用效果进行了比较,结合双兴1井双摆钻具的现场应用,分析了双摆钻具的提速效果,得出了双摆钻具能即时控制钻柱的摆动和涡动状态,能阻挠钻头倾斜、减轻钻头跳动和保护钻头作用的结论。
As a new one, double-pendulum drilling tool is being used in many major oilfields. But so far, no document illustrates its working principle. In this study, based on the effect of tool shape on penetration rate, the reasons why the conventional drilling is inefficient are analyzed; the working principle of double- pendulum drilling tool is presented; and the application effect of this drilling tool is compared with that of positive displacement motor and torque impactor. Moreover, according to its application to Shuangxing 1 well, the speed-raising effect is analyzed. Finally, a conclusion that this double-pendulum drilling tool may control instantaneously the swing and whirling motion state of drill string, obstruct bit inclination, mitigate bit bounce, and protect bit is made.
出处
《天然气技术与经济》
2015年第5期38-40,79,共3页
Natural Gas Technology and Economy
