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- W2367118750 abstract "In the oil well perforation pressure testing,a lot of heat will be released during the process of perforation.The temperature effect of piezoresistive pressure sensor is a main factor influencing the testing precision. To accurately measure the downhole pressure,we had set up calibration system with existing wells simulation test device.The simulation test device is used to simulate downhole high temperature and high pressure environment. Several calibration tests were done under multiple temperature environments. The test results were contrasted with the standard test system. The standard test system was trace calibrated. The piezoresistive sensor sensitivity under different temperature conditions was draw out by the least square method. At last,the pressure data was modified according to the real-time temperature data which is collected by tester. Calculation shows that the peak pressure curve is 1. 4 MPa smaller after modification. This account for 2. 08% of the peak pressure. And it shows that the impact of piezoresistive sensor temperature effect should not be neglected. The temperature correction calibration method for downhole tester based on simulative oil well can effectively eliminate the effect of temperature,improve the test accuracy." @default.
- W2367118750 created "2016-06-24" @default.
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- W2367118750 date "2014-01-01" @default.
- W2367118750 modified "2023-09-23" @default.
- W2367118750 title "Temperature Correction Calibration Method for Downhole Tester Based on Simulative Oil Well" @default.
- W2367118750 hasPublicationYear "2014" @default.
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