On-site calibration method of coaxial phase method water content meter

• Main Authors: JING HAIQUAN, LI HONGYAN, LIU QING, SU FENG, REN GUISHAN, FANG RUI, GE DANGKE, MI LIFEI
• Format: Patent
• Language: Chinese; English
• Published: 10.12.2019
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The invention relates to the technical field of oil extraction devices, in particular to an on-site calibration method of a coaxial phase method water content meter. The method comprises the following steps: the first day: sampling, testing and analytical sampling: sampling 1.5 L, recording a sampling time and oil sample characteristics while sampling, and recording whether the oil sample characteristics contain foam and a large amount of gas or not; testing and analyzing: testing the sample, calculating a corresponding water content value H1-1 according to the minute electric value V1-1 calculated by the sampling time, and tracking the water content change of one day; on the second day: sampling, testing and analyzing, and correcting a calibration curve; correcting a water content calibration curve according to the water content test values H1-1 and H2-2 of the first day and the second day and the corresponding electric values and by referring to the initial calibration value, and inputting a correction resu