Research on Wellhead Flow Detection Method at Low Reynolds Number
Social Science Research Network(2022)
Abstract
The detection of wellhead fluid flow is critical in the development of low-production wells. The production status can be evaluated according to the flow of production wells. The thermal flowmeter designed in this paper mainly measures the flow of single-phase flow. The main contents include: 1. The thermal probe's sensitivity calculation method is studied. A large number of data are calculated to fit, and the feasibility of this method is verified. 2. The theoretical process of measuring fluid flow with the constant temperature difference method is proposed and deduced. The only monotonic function relationship between power and flow rate is obtained by data fitting with numerical calculation software, proving the correctness of applying the constant temperature difference method. 3. The results are analyzed and verified in the field sampling calibration. The experimental research shows that the scheme of thermal flowmeter detecting fluid flow based on the constant temperature difference method is feasible. The experimental results show that the thermal flowmeter may be used to measure the flow rate of low-production wells. The error is within 3%, which achieves the expected effect and meets the measurement standard.
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Key words
Fluid flow,Thermal probe,Constant temperature difference,Thermal flowmeter
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