| 石英压力传感器自动标定技术研究 |
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| 引用本文： | 支宏旭,余强,薛永增,秦小飞.石英压力传感器自动标定技术研究[J].测井技术,2019,43(1):97-100. |
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| 作者姓名： | 支宏旭 余强 薛永增 秦小飞 |
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| 作者单位： | 中海油田服务股份有限公司油田技术研究院,河北三河,065201;中海油田服务股份有限公司油田技术研究院,河北三河,065201;中海油田服务股份有限公司油田技术研究院,河北三河,065201;中海油田服务股份有限公司油田技术研究院,河北三河,065201 |
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| 基金项目： | 中国科学院战略性先导科技专项(A类)子课题“随钻地层测试流体取样仪器研制”;国家科技重大专项课题“超低渗地层测试技术与装备” |
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| 摘 要： | 地层测试器应用高精度、低温漂的石英压力传感器测量地层流体压力。石英压力传感器使用一段时间之后,测量精度下降,需要重新标定以恢复精度。针对这一问题,调研了多种石英压力传感器标定方法,设计了一种石英压力传感器的全自动标定技术方案,能够对温度低于200℃、压力低于138 MPa环境下的精度±0.02%的石英压力传感器进行全自动标定。分析标定设计、标定结果,讨论了标定系统进一步优化方向。
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| 关 键 词： | 地层测试器 石英压力传感器 自动 标定 |
Study on Automatic Calibration Technology of Quartz Pressure Sensor |
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| ZHI Hongxu,YU Qiang,XUE Yongzeng,QIN Xiaofei.Study on Automatic Calibration Technology of Quartz Pressure Sensor[J].Well Logging Technology,2019,43(1):97-100. |
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| Authors: | ZHI Hongxu YU Qiang XUE Yongzeng QIN Xiaofei |
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| Affiliation: | (Research and Development Institute of Well-tech,China Oilfield Services,Sanhe,Hebe 065201,China) |
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| Abstract: | High precision and low temperature bleaching quartz pressure sensor was usually used by the formation tester to measure the fluid pressure of the formation.However,after a period of use,the measurement accuracy of the quartz pressure sensor would decrease,which need to be recalibrated to restore the accuracy.In order to solve this problem,the calibration methods of a variety of quartz pressure sensors were investigated in this paper,and a fully automatic calibration technology scheme for quartz pressure sensors was designed,which can fully calibrate quartz pressure sensors with an accuracy of±0.02%at temperatures below 200℃and pressure below 138 MPa.Finally,the calibration design and calibration results were analyzed,and the direction of further optimization of the calibration system was discussed. |
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| Keywords: | formation tester quartz pressure sensor automatic calibration |
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