| 孙金辉,谢丽蓉.原油含水率测量传感器性能优化实验研究[J].电子测量与仪器学报,2022,36(8):97-104 |
| 原油含水率测量传感器性能优化实验研究 |
| Performance optimization and experimental research ofcrude oil water content measurement sensor |
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| DOI： |
| 中文关键词: 原油 电极电导传感器 结构优化 温度和非线性综合补偿参数 最小二乘法 |
| 英文关键词:crude oil electrode conductivity sensor structural optimization temperature and nonlinear comprehensive compensation
parameters least square method |
| 基金项目:国家自然科学基金(62163034)、新疆维吾尔自治区高校科研计划自然科学重点项目 |
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| 中文摘要: |
| 石油开采实际工况复杂多变,在利用电导法在线测量含水率时,环境因素温度、矿化度和传感器本身的电极结构会带来
测量上的偏差。 本研究设计不同电极环内径、激励电极间距的三电极和四电极进行对比实验并利用标定实验获取电导率和温
度信息。 在考虑到温度、信号调理电路等因素造成非线性的情况下,建立综合补偿函数并利用最小二乘法进行优化以求取温度
和非线性综合补偿参数。 通过电极结构的优化和得到的补偿参数实现对传感器的性能优化。 搭建含水率测试系统进行模拟测
试验证,实验表明,经过电极结构参数优化和补偿的传感器测量误差在 2%之内,稳定性较好,可满足原油含水率的测量。 |
| 英文摘要: |
| The actual working conditions of oil extraction are complex and changeable. When using the conductometric method to
measure the water content online, the environmental factors, temperature, salinity and the electrode structure of the sensor itself will
bring about measurement deviations. In this paper, three-electrode and four-electrode with different electrode ring inner diameter and
excitation electrode spacing are designed for comparative experiments, and conductivity and temperature information were obtained by
calibration experiments. Considering the nonlinearity caused by temperature and signal conditioning circuit, the comprehensive
compensation function is established and optimized by the least square method to obtain the temperature and nonlinear comprehensive
compensation parameters. The performance of the sensor is optimized by optimizing the electrode structure and compensating parameters.
The water content testing system was established for simulation testing and verification. Experiments show that the measurement error of
the sensor optimized and compensated for the electrode structure parameters is within 2%, and the stability is good, which can meet the
measurement of crude oil water content. |
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