随钻声波测井仪高效电源设计

为了保障随钻声波测井仪在锂电池供电条件下能够长时间工作,需要采用高效电源设计。根据随钻声波电子系统的供电特点、电池性能和工程应用要求,设计了随钻声波测井仪电源控制电路。随钻声波测井仪采用间歇工作方式,低功耗微处理器根据随钻测量系统的指令控制电源开关,对仪器主电子系统的电源进行控制。仿真和实验结果表明,电源控制电路功耗低、抗干扰能力强、可靠性高,能够满足随钻声波测井仪的工作要求。

Design of high efficiency power supply for acoustic logging while drilling tool

High efficiency power supply is necessary for the acoustic Logging While Drilling (LWD) tool powered by high-temperature lithium battery. According to the multi-power supply characteristic of the acoustic LWD tool, a power control circuit is designed. The tool is operated in the intermittent mode, and a low power MCU instructed by Mea-surement While Drilling (MWD) system controls the power switch, which controls the main power supply of the tool. The simulation and experimental results show that the power control circuit has the advantages in low power dissipation, high anti-interference ability and high-reliability, and can meet the demand of acoustic LWD tool.