【摘要】 研制的自动垂直钻进系统由随钻测量系统、信号传输系统、信号采集与处理系统、钻具纠斜系统等组成 ,其中具有 3个可伸缩支撑滑块的钻具纠斜系统的液压部分是设计的重点。根据液压系统的特点和纠斜工作要求 ,优选了主要由柱塞泵和电磁压力比例控制阀组成的压力调节回路 ,对纠斜系统 3个油缸的输出压力进行了测试 ,并对出现的压力不稳和高压泄漏问题做了调整和改进 ,结果表明 ,液压系统的设计是合理可行的。更多还原

【Abstract】 An automatic control vertical drilling system is developed, which is mainly composed of MWD system, signal transmission system and control system for drilling deflection. The hydraulic mechanism of the deflection control system with 3 retractable slippers is the key part of the design. According to the characteristics of the hydraulic system and requirement of control of deflection, the pressure regulating circuit comprised of plunger pump and electromagnetic pressure proportional control valve is optimized, and the pressure output of the three cylinders on the direction control system is measured and such problems as unstable pressure and leakage at high pressure are solved. It is proved that the design of the hydraulic mechanism is reasonable.更多还原