Effects of a Freely Moving Maintenance Device on the Hydrodynamic Characteristics of Pipe Bends

Taimoor Asim, Rakesh Mishra, Kuldip Ubbi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Regular inspection and maintenance of oil and gas pipelines is crucial for safe and cost effective operation of oil and gas industry. Various techniques are practised globally for this purpose. One such technique is to insert a maintenance device within the pipeline that can monitor and record various
parameters of interest, such corrosion etc., for in-situ inspection and repair of the pipeline. The shape of maintenance device is conventionally rectangular and it houses different sensors to monitor pipeline condition. The maintenance device are thus hollow and can propagate freely within the pipeline. Extensive
research has been carried out on the use and effects of such maintenance devices in straight pipes, however, published literature regarding their use in pipe bends is severely limited. In the present study, an advanced numerical approach has been used to investigate the effects of the presence of a maintenance device on the flow structure and hydrodynamic characteristics of
hydraulic pipe bends used within oil and gas sector. A novel methodology has been used, and verified, to predict the velocity of the maintenance device within pipe bends. It has been observed that after the maintenance device is inserted in a pipe bend, the flow structure within the bend changes significantly. The flow
within the bend has been noticed to become highly non-uniform, with the generation of considerable amount of secondary flows. This leads to substantial increase in the pressure drop across the bends. This information can be integrated in the pipeline design for better accuracy
Original languageEnglish
Title of host publicationProceedings of the 5th International Workshop and Congress on eMaintenance
Subtitle of host publicationTrends in Technologies & methodologies, challenges, possibilites and applications
EditorsMiguel Castano Arranz, Ramin Karim
Pages16-19
Number of pages4
Publication statusPublished - 16 Sep 2019
Event5th International Workshop and Congress on eMaintenance: Trends in Technologies & methodologies, challenges, possibilites and applications - Lulea University of Technology, Stockholm, Sweden
Duration: 14 May 201915 May 2019
Conference number: 5
http://ltu.diva-portal.org/smash/record.jsf?pid=diva2%3A1351547&dswid=7157

Conference

Conference5th International Workshop and Congress on eMaintenance
CountrySweden
CityStockholm
Period14/05/1915/05/19
Internet address

Fingerprint

Hydrodynamics
Pipe
Pipelines
Flow structure
Inspection
Secondary flow
Gas industry
Gas pipelines
Pressure drop
Repair
Corrosion
Sensors
Gases
Oils
Costs

Cite this

Asim, T., Mishra, R., & Ubbi, K. (2019). Effects of a Freely Moving Maintenance Device on the Hydrodynamic Characteristics of Pipe Bends. In M. C. Arranz, & R. Karim (Eds.), Proceedings of the 5th International Workshop and Congress on eMaintenance: Trends in Technologies & methodologies, challenges, possibilites and applications (pp. 16-19)
Asim, Taimoor ; Mishra, Rakesh ; Ubbi, Kuldip. / Effects of a Freely Moving Maintenance Device on the Hydrodynamic Characteristics of Pipe Bends. Proceedings of the 5th International Workshop and Congress on eMaintenance: Trends in Technologies & methodologies, challenges, possibilites and applications. editor / Miguel Castano Arranz ; Ramin Karim. 2019. pp. 16-19
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title = "Effects of a Freely Moving Maintenance Device on the Hydrodynamic Characteristics of Pipe Bends",
abstract = "Regular inspection and maintenance of oil and gas pipelines is crucial for safe and cost effective operation of oil and gas industry. Various techniques are practised globally for this purpose. One such technique is to insert a maintenance device within the pipeline that can monitor and record variousparameters of interest, such corrosion etc., for in-situ inspection and repair of the pipeline. The shape of maintenance device is conventionally rectangular and it houses different sensors to monitor pipeline condition. The maintenance device are thus hollow and can propagate freely within the pipeline. Extensiveresearch has been carried out on the use and effects of such maintenance devices in straight pipes, however, published literature regarding their use in pipe bends is severely limited. In the present study, an advanced numerical approach has been used to investigate the effects of the presence of a maintenance device on the flow structure and hydrodynamic characteristics ofhydraulic pipe bends used within oil and gas sector. A novel methodology has been used, and verified, to predict the velocity of the maintenance device within pipe bends. It has been observed that after the maintenance device is inserted in a pipe bend, the flow structure within the bend changes significantly. The flowwithin the bend has been noticed to become highly non-uniform, with the generation of considerable amount of secondary flows. This leads to substantial increase in the pressure drop across the bends. This information can be integrated in the pipeline design for better accuracy",
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Asim, T, Mishra, R & Ubbi, K 2019, Effects of a Freely Moving Maintenance Device on the Hydrodynamic Characteristics of Pipe Bends. in MC Arranz & R Karim (eds), Proceedings of the 5th International Workshop and Congress on eMaintenance: Trends in Technologies & methodologies, challenges, possibilites and applications. pp. 16-19, 5th International Workshop and Congress on eMaintenance, Stockholm, Sweden, 14/05/19.

Effects of a Freely Moving Maintenance Device on the Hydrodynamic Characteristics of Pipe Bends. / Asim, Taimoor; Mishra, Rakesh; Ubbi, Kuldip.

Proceedings of the 5th International Workshop and Congress on eMaintenance: Trends in Technologies & methodologies, challenges, possibilites and applications. ed. / Miguel Castano Arranz; Ramin Karim. 2019. p. 16-19.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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T1 - Effects of a Freely Moving Maintenance Device on the Hydrodynamic Characteristics of Pipe Bends

AU - Asim, Taimoor

AU - Mishra, Rakesh

AU - Ubbi, Kuldip

PY - 2019/9/16

Y1 - 2019/9/16

N2 - Regular inspection and maintenance of oil and gas pipelines is crucial for safe and cost effective operation of oil and gas industry. Various techniques are practised globally for this purpose. One such technique is to insert a maintenance device within the pipeline that can monitor and record variousparameters of interest, such corrosion etc., for in-situ inspection and repair of the pipeline. The shape of maintenance device is conventionally rectangular and it houses different sensors to monitor pipeline condition. The maintenance device are thus hollow and can propagate freely within the pipeline. Extensiveresearch has been carried out on the use and effects of such maintenance devices in straight pipes, however, published literature regarding their use in pipe bends is severely limited. In the present study, an advanced numerical approach has been used to investigate the effects of the presence of a maintenance device on the flow structure and hydrodynamic characteristics ofhydraulic pipe bends used within oil and gas sector. A novel methodology has been used, and verified, to predict the velocity of the maintenance device within pipe bends. It has been observed that after the maintenance device is inserted in a pipe bend, the flow structure within the bend changes significantly. The flowwithin the bend has been noticed to become highly non-uniform, with the generation of considerable amount of secondary flows. This leads to substantial increase in the pressure drop across the bends. This information can be integrated in the pipeline design for better accuracy

AB - Regular inspection and maintenance of oil and gas pipelines is crucial for safe and cost effective operation of oil and gas industry. Various techniques are practised globally for this purpose. One such technique is to insert a maintenance device within the pipeline that can monitor and record variousparameters of interest, such corrosion etc., for in-situ inspection and repair of the pipeline. The shape of maintenance device is conventionally rectangular and it houses different sensors to monitor pipeline condition. The maintenance device are thus hollow and can propagate freely within the pipeline. Extensiveresearch has been carried out on the use and effects of such maintenance devices in straight pipes, however, published literature regarding their use in pipe bends is severely limited. In the present study, an advanced numerical approach has been used to investigate the effects of the presence of a maintenance device on the flow structure and hydrodynamic characteristics ofhydraulic pipe bends used within oil and gas sector. A novel methodology has been used, and verified, to predict the velocity of the maintenance device within pipe bends. It has been observed that after the maintenance device is inserted in a pipe bend, the flow structure within the bend changes significantly. The flowwithin the bend has been noticed to become highly non-uniform, with the generation of considerable amount of secondary flows. This leads to substantial increase in the pressure drop across the bends. This information can be integrated in the pipeline design for better accuracy

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BT - Proceedings of the 5th International Workshop and Congress on eMaintenance

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Asim T, Mishra R, Ubbi K. Effects of a Freely Moving Maintenance Device on the Hydrodynamic Characteristics of Pipe Bends. In Arranz MC, Karim R, editors, Proceedings of the 5th International Workshop and Congress on eMaintenance: Trends in Technologies & methodologies, challenges, possibilites and applications. 2019. p. 16-19