摘要
针对水平井内流动的流体由于介质间存在密度差异而产生重力分异,从而使流体分层流动,开展了阵列电导探针流体成像技术研究。为减少阵列电导探针流体成像技术受电缆传输能力的影响,来获得更加丰富的井下信息,并增强与现有成熟技术的配接能力,设计出基于FPGA的低功耗多路数据采集存储电路,该电路设计有时间标签,经试验验证,对于12路电导探针信号,在采样间隔40 ms下可连续存储8 h,并还可以存储1路频率信号。
In order to reduce the influence of the cable signal transmission capability, obtain more information and match with the existing mature technology, a low-power multi-channel data acquisition and storage circuit based on FPGA has been designed. It possesses with time tag and is able to store 12 channel signals continuously for 8 hours with the sampling 40ms interval.
出处
《石油仪器》
2013年第5期20-21,2,共2页
Petroleum Instruments
