Pressure Measurements and Numerical Simulation of Underwater Shock Wave for Food Processing

Iwasa, S.; Kira, Akio; Maehara, Hironori; Nishi, Masatoshi; Watanabe, Toshiaki; Itoh, Shigeru; Hokamoto, Kazuyuki

doi:10.4028/www.scientific.net/msf.767.229

Cited by 1 publication

(1 citation statement)

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“…The influence of the peak voltage in the range of 10~18 kV on the underwater shock wave pressure in the range of 200~400 MPa was investigated. In 2014, Seisaku Iwasa et al [14] of Ishida Company in Japan conducted a wire discharge experiment in water under the condition of a discharge voltage of 3.5 kV, discharge capacitance of 800 µF and discharge energy of 4.9 KJ and obtained the peak pressure attenuation curve of a shock wave. In 2017, Liu et al [15] studied the influence of water temperature on shock wave generation in the liquid electric effect.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on Performance Evaluation of Controlled Plasma Pulse Plugging Removal Technology

Huang,

Liu,

et al. 2023

Machines

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In the production process of oil and gas wells, the migration of solid particles, such as mud and sand, often leads to screen pipe clogging, resulting in production reduction or even shutdown. Controlled plasma pulse plugging removal technology is a new physical method for unplugging. Plasma, generated by the electrical explosion of the wire, then triggers a shock wave, which can remove the plugging. In this paper, the performance of controllable plasma pulse plugging removal technology is evaluated by simulating the plugging state of the downhole screen through laboratory experiments. The test results of screen plate unplugging effect evaluation fully show that the plasma pulse decongestion technology can carry out effective decongestion, can effectively reduce the pressure behind the clogging zone and increase the flow rate of the clogging zone, and is suitable for different screen plate blockage states such as mild, moderate and severe. Thus, this technology has a good application prospect.

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Section: Introductionmentioning

confidence: 99%