Locating block caused by stuck PIGs in multi product pipeline using combination of radioisotope techniques

Rao, Prasanna; Yelgaonkar, V.N.; Tiwari, C B; Dhakar, V D; Panicker, M.C.

doi:10.1016/j.apradiso.2023.110660

Cited by 2 publications

(1 citation statement)

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“…However, we encountered several challenges during these experiments, including the frequent occlusion of the pig during prolonged operation. A study conducted by Yelgaonkar et al [22] utilized radioisotope technology to locate pipeline blockages caused by pigs. The team could accurately determine the block's location using radioactive tracer technology, such as gamma scanning and radiography.…”

Section: Introductionmentioning

confidence: 99%

PIV Experimental Research and Numerical Simulation of the Pigging Process

Chen,

Zhang,

et al. 2024

JMSE

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The initial running speed of the pig during gas–liquid two-phase pipeline pigging can significantly influence the velocities of both gas and liquid phases within the pipeline. However, due to the complexity and limited understanding of these velocity variations, developing an effective operational plan for pigging becomes challenging. To enhance pigging efficiency and effectively seal the pig, it is crucial to monitor the velocity variations in the gas–liquid phase within the pipeline. In this study, an experimental platform was established to facilitate precise observation of these variations. Particle image velocimetry (PIV) technology was employed for a comprehensive understanding of gas–liquid two-phase velocities during pig operation in the pipeline. The experimental results demonstrated that increasing both the velocity and the initial liquid level height of the pig resulted in a corresponding augmentation of velocity fluctuation range. Specifically, at a holdup rate of 30%, there was a 10% reduction in the maximum liquid-phase velocity, while at a holdup rate of 25%, this reduction amounted to 16% compared to the pigging velocity.

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Section: Introductionmentioning

confidence: 99%