摘要
泥浆脉冲发生器是随钻测井与测量系统的重要组成部件,长期以来采用电磁阀驱动的阀头控制泥浆流量实现井底信号的上传,在应用中受泥浆条件、井深影响较大,不适于深井及超深井作业。无刷直流电机具有高转速、高动态效应、高扭矩等特性,广泛应用于航空和工业自动化等领域的装置和仪表。本文结合无刷直流电机特性,设计了一种基于有霍尔传感器的无刷直流电机驱动器,通过电机驱动旋转阀式转子闭合,形成转子与定子的相对泥浆通道从而实现井底信号上传,并通过现场试验验证了该类泥浆脉冲发生器的可行性及推广应用价值。
Mud pulser is a key partment of Measurement While Drilling / Logging While Drilling（ MWD / LWD） systems.For a long time,the system uses the solenoid valve positive pulse generator to transfer down-hole signal to the surface system,the pulser is affected by mud,depth of well,not suitable for deep well and super deep well operation.With high speed,high dynamic effect,high torque and other characteristics,Brushless DC motor has been widely used in equipment and instrumentation of aviation,industrial automation and other fields.Based on the characteristics of Brushless DC motor,this paper designed a brushless DC motor driver based on hall sensor to achieve signal of down-hole upload by driving the rotor of rotary pulser to form the relative mud channel with the stator,and certified the feasibility and application value of this driver by field test.
出处
《自动化与仪器仪表》
2016年第10期99-101,共3页
Automation & Instrumentation
基金
国家"二五"油气重大专项课题2地层评价随钻测井技术与装备(2011ZX05020-002)
中国石油天然气集团公司国际科技合作研究与技术开发项目(2014B-4015)
