Landweber iterative algorithm based on regularization in electromagnetic tomography for multiphase flow measurement

2012 ◽  
Vol 27 ◽  
pp. 53-58 ◽  
Author(s):  
Ze Liu ◽  
Guoyin Yang ◽  
Nan He ◽  
Xiaoying Tan
Keyword(s):  
Multiphase Flow ◽  
Iterative Algorithm ◽  
Flow Measurement ◽  
Electromagnetic Tomography

A Novel Electrical Cpacitance Sensor Design For Dual Modality Tomography Multiphase Measurement

2013 ◽  
Vol 64 (5) ◽  
Author(s):  
Muhammad Jaysuman Pusppanathan ◽  
Fazlul Rahman Yunus ◽  
Nor Muzakkir Nor Ayob ◽  
Ruzairi Abdul Rahim ◽  
Fatin Aliah Phang ◽  
...  
Keyword(s):  
Multiphase Flow ◽  
Flow Measurement ◽  
Ultrasonic Tomography ◽  
Pipe Surface ◽  
Dual Modality ◽  
Tomography System ◽  
Imaging Result ◽  
Process Tomography ◽  
Single Sensor ◽  
Capacitance Tomography

Electrical capacitance tomography (ECT) is one of process tomography technique which is developed rapidly in recent years. ECT is an imaging technique to obtain the internal permittivity distribution of a vessel or pipe by using capacitance electrodes sensor. This method has been integrated with ultrasonic tomography as multimodality system to perform multiphase flow measurement such as crude oil separation and oil process industry. In the present paper, a novel type of ECT sensor was developed using copper FR4 material. The electrode sensors can be flexibly bend or curve to fit the pipe surface for optimum measurement. Thus, every single sensor strip is designed to be functioned independently. Such system has lower sensing capability in the central of the sensing area which often contributes to poor imaging result. This problem can be overcome by combining the ECT with ultrasonic tomography to form a dual modality tomography system. By implementing the new ECT sensor, multiphase flow measurement image results can be achieved. The reconstructed image results are presented in this paper.

Temporary Program Of Multiphase Flow Measurement To Provide Well Performance Data: Study Cases

2007 ◽  
Author(s):  
Jorge Alberto Arevalo Villagran ◽  
Teodulo Gutiérrez-Acosta ◽  
Jose Refugio Serrano-Lozano ◽  
Sergio Lopez-Ramirez ◽  
Horacio Ferreira
Keyword(s):  
Multiphase Flow ◽  
Flow Measurement ◽  
Performance Data ◽  
Well Performance

Multiphase Flow Measurement System of Oil Well

2007 ◽  
Author(s):  
Zhiyao Huang ◽  
Chaohong He ◽  
Qilin Liang
Keyword(s):  
Multiphase Flow ◽  
Measurement System ◽  
Flow Measurement ◽  
Oil Well

A Novel Two-Phase Gas\Liquid Slug Flow Measurement System Using a T-Junction Separator and Ultrasonic Measurements

2008 ◽  
Author(s):  
Khalifa M. Khalifa ◽  
Mike L. Sanderson
Keyword(s):  
Multiphase Flow ◽  
Systems Engineering ◽  
Measurement System ◽  
Slug Flow ◽  
Flow Measurement ◽  
Cross Correlation ◽  
Flow Regimes ◽  
Oil And Gas Industry ◽  
Wide Range ◽  
Ultrasonic Measurements

Over the last decade, the development and deployment of in-line multiphase flow metering systems has been a major focus worldwide. Accurate measurement of multiphase flow in the oil and gas industry is difficult because it occurs in wide range of flow regimes and multiphase meters do not generally perform well under the intermittent slug flow conditions which commonly occur in oil production. A novel ultrasonic multiphase metering concept has been proposed and investigated which measures the flow rates of the liquid and gas phases from ultrasonic measurements made in two different flow regimes – partially separated and homogeneous — in the same measurement system and fuses the data from the different flow regimes to obtain improved overall measurement accuracy. The system employs a partial gas/liquid separation using a T-junction configuration and a combination of Doppler and cross correlation. The partially separated flow regimes uses ultrasonic cross correlation measurement for the liquid flow measurement which has gas entrained within it. The homogeneous regime employs ultrasonic Doppler method. This approach has been tested on water/air flows on a 50mm facility in the Department of Process and Systems Engineering. The liquid and gas flowrate measurements using the proposed techniques were compared with a reference measurement and good agreements between these two measurements were obtained with error ranging from ± 2% and 10%, respectively. Such a performance offers the potential for an in-line multiphase flowmeter with improved performance.

scholarly journals PIV Imaging for Multiphase Flow Measurement Utilizing Synchrotron Radiation X-ray

2005 ◽  
Vol 25 (Supplement2) ◽  
pp. 205-208
Author(s):  
Tomomasa Uemura ◽  
Yasufumi Yamamoto ◽  
Shigeru Nishio ◽  
Shigeru Murata ◽  
Kentaro Uesugi
Keyword(s):  
Synchrotron Radiation ◽  
Multiphase Flow ◽  
Flow Measurement ◽  
X Ray

Multiphase Flow Measurement Techniques for Slurry Transport

2011 ◽  
Vol 9 (1) ◽  
Author(s):  
Katherine J. Albion ◽  
Lauren Briens ◽  
Cedric Briens ◽  
Franco Berruti
Keyword(s):  
Multiphase Flow ◽  
Flow Measurement ◽  
Measurement Techniques ◽  
Doppler Imaging ◽  
Activation Technique ◽  
Monitoring Methods ◽  
Solids Concentration ◽  
Coriolis Mass Flowmeter ◽  
Neutron Activation Technique ◽  
Slurry Transport

Multiphase flow measurement techniques are required to monitor slurry transport in industrial processes. Monitoring methods are used to ensure that the slurry is transported under specific conditions, and as an indicator of potential problems. Intrusive and non-intrusive sensors are used to measure solids concentration, mass flowrates, velocities and flow patterns. Sensing techniques are based on pressure, electrical, sound, imaging and nuclear properties. In this literature review, measurement techniques examined for horizontal pipelines include pressure measurements, the Coriolis mass flowmeter, acoustic sensors, capacitance, conductivity and microwave probes, electrical resistance tomography, laser Doppler imaging and the Pulsed Neutron Activation Technique. The principles of operation are described along with experimental results and a critique of the sensors and technology.

scholarly journals The Flow Measurement of Multiphase Flow Based on the Conductance Sensor

2012 ◽  
Vol 01 (04) ◽  
pp. 35-40 ◽  
Author(s):  
Rui-Rong Dang ◽  
Dong-Sheng Zhao ◽  
Li-Pin Li ◽  
Guang Yin
Keyword(s):  
Multiphase Flow ◽  
Flow Measurement
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