石油开采中高位钻孔旋转导向钻进减阻控制技术

Drag reduction control technology of rotary steerable drilling in high position drilling in oil production

为提高高位钻孔旋转导向钻进速度,提升钻进工作效率,开展石油开采中高位钻孔旋转导向钻进减阻控制技术研究。建立释放摩阻关系模型,确定释放摩阻、扭矩与施加钻压之间的关系;为确保钻进顺利进行,确定扭矩控制的最大限值和最小限值,并实现在钻进中的扭矩控制;最后实现对旋转导向钻进减阻的闭环控制,完成对控制技术的设计。通过实例证明,新的控制技术在实际应用中可以达到理想的减阻效果,提升平均钻进速度,提高钻进作业甚至整个石油开采的作业效率。

In order to improve the speed and efficiency of rotary steerable drilling in high position drilling,research on drag reduction control technology of rotary steerable drilling in high position drilling was carried out.The release friction model was established to determine the relationship between the release friction,torque and applied weight on bit.To ensure smooth drilling,determine the maximum and minimum limits of torque control and achieve torque control during drilling;Finally,the closed-loop control of drag reduction in rotary steering drilling is realized and the control technology is designed.It is proved that the new control technology can achieve the ideal drag reduction effect in practical application,increase the average drilling rate,improve the drilling operation and even the overall oil production efficiency.