Some industrial applications of gamma-ray tomography

Kalaga, Dinesh V.; Kulkarni, Anand V.; Acharya, Rabinarayan; Kumar, Umesh; Singh, G.; Joshi, Jyeshtharaj B.

doi:10.1016/j.jtice.2009.05.012

Cited by 44 publications

(11 citation statements)

References 28 publications

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“…Gamma is preferred because of its ability to measure spacial distribution based on the atomic number and density of a material [111,113,114]. When gamma-rays are radiated from the source to the detector, the ray will attenuate depending on the absorption of radiation of the flow within the pipe [115]. Depending on the detected gamma quanta at the detector, the sensor is able to measure even small changes in the density differences of the fluid, and can hereby obtain accurate measurements of the fraction of each phases [116].…”

Section: Multi-phase Flow Meteringmentioning

confidence: 99%

Multi-Phase Flow Metering in Offshore Oil and Gas Transportation Pipelines: Trends and Perspectives

Hansen

Pedersen

Durdevic

2019

Sensors

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Multi-phase flow meters are of huge importance to the offshore oil and gas industry. Unreliable measurements can lead to many disadvantages and even wrong decision-making. It is especially important for mature reservoirs as the gas volume fraction and water cut is increasing during the lifetime of a well. Hence, it is essential to accurately monitor the multi-phase flow of oil, water and gas inside the transportation pipelines. The objective of this review paper is to present the current trends and technologies within multi-phase flow measurements and to introduce the most promising methods based on parameters such as accuracy, footprint, safety, maintenance and calibration. Typical meters, such as tomography, gamma densitometry and virtual flow meters are described and compared based on their performance with respect to multi-phase flow measurements. Both experimental prototypes and commercial solutions are presented and evaluated. For a non-intrusive, non-invasive and inexpensive meter solution, this review paper predicts a progress for virtual flow meters in the near future. The application of multi-phase flows meters are expected to further expand in the future as fields are maturing, thus, efficient utilization of existing fields are in focus, to decide if a field is still financially profitable.

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Section: Multi-phase Flow Meteringmentioning

confidence: 99%

Multi-Phase Flow Metering in Offshore Oil and Gas Transportation Pipelines: Trends and Perspectives

Hansen

Pedersen

Durdevic

2019

Sensors

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“…CT techniques have also been used to explore the distribution of liquid at the entrance of packed bed columns and catalytic beds (see e.g. Bazer-Bachi et al, 2013;Fourati, Roig, & Raynal, 2012;Kalaga et al, 2009;Merwe, Nicol, & Beer, 2007;Roy et al, 2005 and references therein). For example, Figure 18.8 illustrates the distribution of liquid in a trickle bed reactor of diameter 0.6 m with two types of distributors: a chimney tray with deflectors and a gas-lift distributor.…”

Section: Hydrodynamic Studiesmentioning

confidence: 99%

Applications of tomography in bubble column and trickle bed reactors

Holland

2015

Industrial Tomography

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“…Gamma densitometry has been approved to be a non-intrusive technique for measurement of local density in multiphase flows [10,11]. Although several applications of gamma densitometry in gas liquid flow have been reported, its application in gas-liquid-solid system is spare [12].…”

Section: Introductionmentioning

confidence: 99%

Application of gamma-ray attenuation technology in density measurement of a slurry reactor

Wei

Zhang

2010

Front. Chem. Eng. China

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Axial density profile of the gas-liquid-solid mixture in a slurry bubble column was measured by gamma-ray attenuation technology. Several measures for improving measurement precision were presented based on the discussion on attenuation law. It was found that the response frequency and the ray intensity should be as high as possible to improve the measurement precision. The mass absorption coefficient depended on not the object's thickness but the location where the object was placed between the ray source and the detector. The results showed that the density in the column decreases with the increase of column height, which indicates that the measurement by gamma-ray attenuation is reasonable.

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Some industrial applications of gamma-ray tomography

Cited by 44 publications

References 28 publications

Multi-Phase Flow Metering in Offshore Oil and Gas Transportation Pipelines: Trends and Perspectives

Multi-Phase Flow Metering in Offshore Oil and Gas Transportation Pipelines: Trends and Perspectives

Applications of tomography in bubble column and trickle bed reactors

Application of gamma-ray attenuation technology in density measurement of a slurry reactor

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