摘要
分析了自动防斜钻井系统的结构和控制原理,研究了其控制方法。当井斜角超过额定值时,井下微处理器控制可控稳定器工作,产生降斜力以减小井斜角,达到纠斜的效果。纠斜后允许井斜角的大小控制在0°和最大允许井斜角之间。可控稳定器的打开方式、状态调整方式和关闭方式是控制系统建模和仿真的理论基础。
The structure and control principle of AADDS （ automatic anti-deviation drilling system） are analyzed, and the control method is put forward. When the well deviates, the microprocessor makes the controlled stabilizer work to produce a drop force which will reduce the inclination. The azimuth angle of the bit may change at the same time. If the azimuth angle is big enough, the state of the controlled stabilizer should be adjusted. The allowed inclination angle after correction is between zero and the biggest allowed inclination angle. The ways of opening, adjusting the state of the controlled stabilizer and closing are the theoretical basis of modeling and simulation of the control system.
出处
《武汉科技大学学报》
CAS
2006年第5期486-489,共4页
Journal of Wuhan University of Science and Technology
基金
湖北省自然科学基金资助项目(2004ABA002)
