Chunxia Liu
ABSTRACT
In the field of petroleum logging, in order to solve the problem of the measurement error exceeding the standard caused by the long-term use of the quartz pressure sensor in the formation pressure tester, this paper studies the temperature compensation algorithm in the pressure measurement process, and gives a secondary calibration based on the polynomial fitting algorithm method, and developed a set of intelligent calibration system specially used for high-precision quartz pressure sensor. It has been verified that the pressure measurement accuracy of the quartz pressure sensor in the full temperature range after calibration by the calibration system meets the factory requirements, which confirms the accuracy and availability of the calibration system.
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