Capability of dual-modality electrical tomography for gas-oil-water three-phase pipeline flow visualisation

Wang, Qiang; Polanský, Jiří; Wang, Mi; Wei, Kent; Qiu, Chen; Kenbar, Asaad; Millington, David S.

doi:10.1016/j.flowmeasinst.2018.02.007

Cited by 28 publications

(11 citation statements)

References 19 publications

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“…presents a summary of the current capability of dual-modalities in gas-oilwater three-phase flow against water to liquid ratio. Despite the success of the proposal by Wang et al in [15], for waterdominated three-phase flow, there is still a blank space of distinguishing gas and oil phase (grey area in Figure 2). However, the produced fluids often contain large quantities of water, even though it may already become oil-bearing strata [24].…”

Section: Tomography For Three-phase Materialsmentioning

confidence: 99%

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Dual Modality EIT-UTT for Water Dominate Three-Phase Material Imaging

2020

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Three-phase material imaging such as oil, gas and water is a critical problem in many processes. Monitoring and separation of each phase before corresponding process can be a key to realise cost efficiency production. In the oil and gas industry such a tool can generate great environmental benefits. In recent years, several multi-modality imaging systems are being adapted for such an application. It is not possible to gain information on three phase flow using a single imaging modality that can be deployed in production field. For a three-phase flow dominated by water phase, this is more challenging. The capability of the majority of current dual-modality systems was only demonstrated under limited flow regime conditions. This paper presents a novel combined imaging system including electrical impedance tomography (EIT), and ultrasound transmission tomography (UTT) for mapping three-phase flow. In water dominate mode, the EIT is able to image the nonconductive phases of oil and gas in a water dominate background phase, but not able to separate oil and gas. The EIT two-phase imaging then complimented with the speed of sound imaging of the UTT, which can separate liquid (oil and water) and gas. A dual modality EIT-UTT system combining a 32-electrode EIT array and a 32-transducer UTT sensor array is developed to demonstrate this novel three-phase material imaging. The concept was demonstrated using simulation study and then shown with experimental lab tests. Measurement principles and method are described, experiment based on several three-phase flow scenarios are established, and the results show successful distinguishably for all three phases. INDEX TERMS Three phase flow, electrical impedance tomography, ultrasound travel time tomography.

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Section: Tomography For Three-phase Materialsmentioning

confidence: 99%

“…Other multi-modality tomographic systems have been applied and proposed for complex process industry applications such as gas-oil-water (three-phase) flow [1], [15], [16]. So far, dual-modality of electrical capacitance tomography (ECT) and ERT is commonly used as a solution [17]- [19] for imaging oil-dominated three-phase flow.…”

Section: Introductionmentioning

confidence: 99%

Dual Modality EIT-UTT for Water Dominate Three-Phase Material Imaging

2020

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“…In the first category, dual-modality is achieved by the use of two standalone tomography systems. Two independent sensors are placed side to side along a pipe [9][10][11][12][13][14], there are two main drawbacks of this configuration: (1) two standalone acquisition systems and two sensors make the system complex and expensive; (2) In of the second category, there are systems that feature two sets of electrodes in the same plane [15][16], i.e. with an integrated ERT/ECT sensor.…”

Section: Introductionmentioning

confidence: 99%

Dual-Modality 4-Terminal Electrical Capacitance and Resistance Tomography for Multiphase Flow Monitoring

Frias

Yang

2020

IEEE Sensors J.

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“…Hence, there is a critical need to provide efficient paradigms for the development of the appropriate software tools for visualizing, browsing and manipulating measurement records' datasets that enhance the current capacity of the widely used, domain-standard data analysis software packages such as MATLAB [7,26,27]. Novel methods of data analysis, such as employing large multi-touch display surfaces for operating visuals coupled with proper data presentation methods have been reported to increase the convenience as well as efficiency of similar procedures in other areas [28][29][30][31][32].…”

Section: Introductionmentioning

confidence: 99%

“…There have been reports on the use of electrical tomography systems for control purposes of various industrial processes, since they provide a reliable stream of quality measurement data [ 4 , 5 , 6 ]. Electrical capacitance tomography (ECT) has proven to be fast and efficient, particularly for processes that occur in closed environments [ 3 , 7 , 8 ]. Current development of ECT systems is focused on increasing the accuracy and sensitivity of measurement units [ 9 ] as well as efficiency and precision of algorithms for image reconstruction and data processing [ 10 , 11 , 12 ], which are the crucial elements for deep analysis and advanced process control [ 13 , 14 , 15 , 16 , 17 ].…”

Section: Introductionmentioning

confidence: 99%

Interactive Timeline Approach for Contextual Spatio-Temporal ECT Data Investigation

Romanowski

Chaniecki

Koralczyk

et al. 2020

Sensors

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This paper presents a novel approach to a complex process of electrical capacitance tomography (ECT) measurement data analysis. ECT is frequently employed for non-invasive monitoring of industrial process phenomena. Proposed methodology is based on the premeditated integration of the spatial and temporal relations inherent in the measurement records into the workflow of the analysis procedure. We propose a concept of interactive timeline that enables arranging data visualization according to the user’s current focus along the process of analysis. We evaluated the proposed method using a prototype system in a task-based user study conducted with a group of domain experts. The evaluation is based on gravitational silo flow measurement datasets. Proposed prototype system enables diverse data manipulation in a more natural way allowing the user to switch back and forth between space and time domains along the data analysis trail. Experiments with the prototype system showed that the accuracy and completion times have significantly improved in comparison to the performance measured in the baseline condition. Additionally, the participants reported decreased physical load with improved efficiency measured with NASA task load index. Finally, a short discussion coupled with directions for the future of interactive spatio-temporal ECT measurement data analysis conclude the paper.

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Capability of dual-modality electrical tomography for gas-oil-water three-phase pipeline flow visualisation

Abstract: This is a repository copy of Capability of dual-modality electrical tomography for gas-oil-water three-phase pipeline flow visualisation.

Cited by 28 publications

References 19 publications

Dual Modality EIT-UTT for Water Dominate Three-Phase Material Imaging

Dual Modality EIT-UTT for Water Dominate Three-Phase Material Imaging

Dual-Modality 4-Terminal Electrical Capacitance and Resistance Tomography for Multiphase Flow Monitoring

Interactive Timeline Approach for Contextual Spatio-Temporal ECT Data Investigation

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