Z. X. Jin, C. Li, Y. W. Liu, S. Q. Fu
Natural gas is a kind of clean energy. In the process of natural gas flowmeter verification, pressure, as a key parameter of flowmeter verification, has a direct impact on the verification result of natural gas flowmeter. In order to study the influence of pressure deviation on the verification results, the theoretical calculation method was used to analyze the influence of pressure deviation on the verification results, and then the natural gas flow test method was used for verification. Finally, the control measures and suggestions to ensure the accurate and reliable pressure were given.
FLOMEKO 2022
· TC9
· 2022
· 10.21014/tc9-2022.127
· Download
Lei OuYang, Ningde Jin, Landi Bai, Weikai Ren
Flow parameters measurement is beneficial for understanding oil-water two-phase flow. Due to the changeable flow structures of oil-water two-phase flow, the prediction of superficial velocity of oil-water two-phase flow in large diameter pipes is still a challenging problem. In this paper, a novel soft measurement technique based on Capsule Network (CapsNet) is developed to predict the superficial velocity. Firstly, a vertical upward oil-water two-phase flow experiment in a 125 mm ID pipe was conducted, and response signals at different flow conditions were obtained by a vertical...
FLOMEKO 2022
· TC9
· 2022
· 10.21014/tc9-2022.126
· Download
L. D. Bai, N. D. Jin，W. K. Ren, Z. Y. Tang, C. S. Liu
Accurate measurement of oil-water flows is a significant issue to oilfield water injection development. In this paper, the parameter measurement of vertical oil-water flows is established by conductance sensors with inner-outer multi-height ring electrodes. Firstly, the dynamic experiment of vertical upward oil-water flows is carried out, and a high-speed camera is used to capture flow structures in each working condition. Based on the output conductance signals and the images from the high-speed camera, the experimental flow patterns (bubble flow, slug flow, very fine bubble flow and...
FLOMEKO 2022
· TC9
· 2022
· 10.21014/tc9-2022.125
· Download
Ziyan Tang, Ningde Jin, Yiyu Zhou, Weikai Ren
Although turbine flow meters (TFM) have made good progress in measuring flow with accurate response characteristics in single-phase flow, TFM combined with other sensors to measure two-phase flow is still a difficult and hot issue. Due to the leakage after the collection, the flow state change and slippage between the gas and liquid phases in the pipeline after the diversion are complicated, and all these factors have a significant impact on the TFM modelling. Therefore, the meter factor models of the TFM with diverter in two-phase flows have not been thoroughly solved. Thus, this study...
FLOMEKO 2022
· TC9
· 2022
· 10.21014/tc9-2022.124
· Download
Chuanbo Zheng, Lei Zhou, Can Li, Wei Han, Xing Qian
Turbine flowmeters are widely used to measure volume flow and total volume of low viscosity gas in closed pipelines due to their advantages of high precision, good repeatability and insensitivity to peak value, especially in natural gas distribution stations and metering institutions are more commonly used. However,there are rotating parts inside them, which are easily affected by factors such as dust, grease, and impurities. Based on flowmeter verification test data and years of experience in standard device management, this paper conducts research from four aspects of fouling source...
FLOMEKO 2022
· TC9
· 2022
· 10.21014/tc9-2022.123
· Download
Sun Limin, Zhang Kui, Jiang Chen
Ultrasonic flow meter has become the mainstream measuring instrument in the natural gas trade because of its advantages of large measuring range, small pressure loss and high measurement accuracy. In the measurement of natural gas with high pressure and large flow, the advantage of ultrasonic flow meter is particularly obvious. Ultrasonic flow meter based on transit-time method can measure the speed of sound and the flow velocity of fluid at the same time. With the continuous improvement of on-site monitoring and diagnosis technology of ultrasonic flow meter, the on-line audit of flow meter...
FLOMEKO 2022
· TC9
· 2022
· 10.21014/tc9-2022.122
· Download
Yi ZHOU, Zuoguang ZHAO, Fang DONG, Caihong SUN, Zhi LI
In order to meet the requirements of rapid on-site verification / calibration of flow meters in our country’s natural gas measurement field, we have jointly developed a movable gas flow testing device equipping with critical flow venturi nozzle. According to actual needs the device will be used in the different lab.In order to ensure the uncertainty of the device can meet the requirements of customers,the designer should fully demonstrates and considers the design in selecting the most suitable temperature and pressure sensor, and the processing of calculus.From technical point, we should...
FLOMEKO 2022
· TC9
· 2022
· 10.21014/tc9-2022.121
· Download
I. Gryshanova, A. Rak
The main source of errors while applying modern ultrasonic flow measurement principle is the deviation of the actual velocity profile of the measured flow from the calculated one. If the velocity profile is known, the corresponding correction can be evaluated and considered during calibration. However, in practice, the distribution of velocities in the cross section of the pipeline differs from the theoretical one, which leads to errors of hydrodynamic origin.To determine the flow rate of the measuring medium, it is necessary to transform the flow velocity averaged along the acoustic path to...
FLOMEKO 2022
· TC9
· 2022
· 10.21014/tc9-2022.120
· Download
A. Rieder, H. Zhu, P. Ceglia, H.-T. Ngo
Coriolis mass flowmeters are widely accepted in various industries for the great performance of density and mass flow rate measurements. Not only do they play a critical role in O&G custody transfer applications, but also an increasingly important role in addressing the new challenges and applications related to the energy transition where the highest accuracy and reliability is also required. Analogous to multi-beam Ultrasonic flowmeters, a new measuring concept based on Coriolis principle has been developed with a metering system that consists of two individual Coriolis meters arranged in...
FLOMEKO 2022
· TC9
· 2022
· 10.21014/tc9-2022.119
· Download
Huichao Shi, Xiao Huang, Tao Meng, Huaiming Shen, Zhiming Yang
The measurement process of multi-channel ultrasonic flowmeter is affected by the distribution of flow field in the pipeline, which makes the measurement results of sound channel have large errors, and finally leads to large errors in the integration results of flow. Especially when the ultrasonic flowmeter is installed near the rear of the valve, elbow and other spoiler, the influence of the flow field distribution in the pipeline on the measurement results of the ultrasonic flowmeter is difficult to avoid. Aiming at the distribution of the flow field in the pipeline behind the gate valve...
FLOMEKO 2022
· TC9
· 2022
· 10.21014/tc9-2022.118
· Download