基于灰色系统理论的钻压预测模型研究

Prediction of WOB Based on Grey System Theory

针对时变、时滞、非线性自动送钻钻压控制系统难以精确控制的问题,提出灰色系统理论;利用自动送钻系统的灰色钻压序列建立灰色理论(GM)模型,观察系统动态特性;最后运用GM模型对自动送钻系统的钻压及系统动态特征量进行预测。

For the difficulty in controlling the nonlinear pressure control system precisely for automatic drilling,combined with time- varying and time- delay,this paper put forward the grey system theory. Based on the automatic drilling system grey WOB sequence,we established a system that can reflect the dynamic characteristics of the GM model. And then use the GM model for automatic drilling system to predict the WOB.