Investigation on Sand Particle Impingement on Steel Pipe in Two Phase Flow Using Acoustic Emission Technology

El-Alej, M.; Mba, David; Yan, T.; Husin, Shuib

doi:10.4028/www.scientific.net/amm.315.540

Cited by 5 publications

(3 citation statements)

References 4 publications

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“…The disadvantage of this approach is that due to the impact of the sand particles on such mesh, the mesh corrodes over time and there is a chance of rupture of such meshes. El‐Alej et al [20 ] also used ultrasonic sensors to investigate sand flow rate in gas–sand fluid mixtures. They measured the reading of ultrasonic sensors at various sand flow rates between 0.1 and 1 g/s and at velocities between 8 and 12 m/s.…”

Section: Background Reviewmentioning

confidence: 99%

Improving sand flow rate measurement of commercial ASDs and comparison with ultrasonic spectral analysis and filtering

Seraj

Evans

2020

IET Science, Measurement &Amp; Technology

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Production of sand in gas wells is associated with various issues such as the erosion of pipes, disruption of the gas processing plant and reduced production capacity. Sand production can jeopardise the integrity of the pipes/equipment. Measuring the sand flow rate helps better sand control and management. Currently, there are many concerns about the accuracy of sand flow rate measurement using a commercial acoustic sand detector (ASD). This study suggests a relationship which substantially improves the accuracy of sand flow rate measurement using an ASD. This study also investigates using a simple ultrasonic sensor for sand flow rate measurement in which a fast Fourier transform (FFT) is used to convert data into the frequency domain. When a Savitzky–Golay filter is used on the FFT response, the smoothed output shows that there is a close relationship between the peak value of smoothed FFT signal in the 10–50 kHz frequency range, and the sand flow rate. This relationship provides a more accurate measurement of sand flow rate than is presently available using an ASD.

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Section: Background Reviewmentioning

confidence: 99%

Improving sand flow rate measurement of commercial ASDs and comparison with ultrasonic spectral analysis and filtering

Seraj

Evans

2020

IET Science, Measurement &Amp; Technology

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“…Hii et al [12] successfully obtained the characteristics of the solid content in a gas-solid two-phase flow based on the principle of acoustic emission. El-Alej et al [13] obtained the characteristics of the sand content in a water-sand twophase flow using acoustic emission technology. Sampson et al [14] established a mathematical model of sand production in oil wells based on acoustic measurements.…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigations of Offshore Sand Production Monitoring Based on the Analysis of Vibration in Response to Weak Shocks

Liu

Jia

et al. 2021

Geofluids

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Sand production is a problem that is often encountered in unconventional oil and gas exploitation and that is difficult to effectively solve. Accurate online monitoring of sand production is one of the keys to ensuring the safety and long-term production of oil wells as well as efficient production throughout the life cycle of production wells. This paper proposes a method for monitoring sand production in offshore oil wells that is based on the vibration response characteristics of sand-carrying fluid flow impinging on the pipe wall. This method uses acceleration sensors to obtain the weak vibration response characteristics of sand particles impinging on the pipe wall on a two-dimensional time-frequency plane. The time-frequency parameters are further optimized, and the ability to identify weakly excited vibration signals of sand particles in the fluid stream is enhanced. The difference between the impact response of the sand particles and the impact response of the fluid flow to the pipe wall is identified, and corresponding indoor verification experiments are carried out. Under different sand contents, particle sizes, and flow rates (sand content 0-2‰, sand particle size 96-212 μm, and flow velocity 1-3 m/s), the impact response frequency of sand particles to the pipe wall exhibits good consistency. The characteristic frequency band of sand impacting the pipe wall is 30-50 kHz. A statistical method is used to establish the response law of the noise signal of the fluid. Based on this knowledge, a real-time calculation model of sand production in offshore oil wells is constructed, and the effectiveness of this model is verified. Finally, a field test is carried out with a self-developed sand production signal dynamic time-frequency response software system on 4 wells of an oil production platform in the Bohai Sea. This system can effectively distinguish sand-producing wells from non-sand-producing wells. The dynamic time-frequency response, field test results, and actual laboratory results are consistent, verifying the effectiveness of the method proposed in this paper and further providing a theory for improving the effectiveness of the sand production monitoring method under complex multiphase flow conditions. This study also provides technical guidance for the industrial application of sand production monitoring devices in offshore oil wells.

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“…El-Alej et al [15] monitor sand transport characteristics and showed a correlation between minimum transport condition and acoustic emission energy levels. El-Alej et al [16] demonstrated that acoustic emission technology is capable of detecting the presence sand particles in the two-phase flow. They successfully correlated acoustic emission energy with sand injection over a range of superficial gas velocities.…”

Section: Introductionmentioning

confidence: 99%

Monitoring Solid Phase in Oil-Water-Sand Multiphase Flow in Impact Parts Based on Acoustic Emission Sensor Technology

Wang

Liu

Zhang

et al. 2017

AMM

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Oil-water-sand multiphase flow is widely used in oil production industry. The effect of real-time measurement of the solid phase in oil-water-sand multiphase flow parameters is significant in the monitoring of sand production. In order to improve the existing limitations in solid particle detection of a liquid-solid system, an acoustic emission signals amplify device for liquid-solid flow has been developed and its evaluation test is conducted indoor. Computational fluid dynamic (CFD) analysis method is applied based on the theory of multiphase flow macroscopic continuum. Research is conducted on the distribution of solid phase in oil-water-sand multiphase flows in impact parts. The characteristics of the acoustic emission signals of sand with different sizes and concentrations are also extracted under laboratory conditions. A primary measuring instrument based on acoustic emission is proposed and designed to amplify vibration caused by sand impact. Therefore, the acoustic emisson sensor is much easier to receive solid signal. CFD analysis results show that the impact parts amplified the solid signal caused by the acoustic emission in multiphase flows. The indoor experiment results showed that the sand particle size and concentration have a good correlation with the relative power spectrum amplitude of the signal. The device system can effectively detect sand with the content of more than 0.3 wt.‰ and with the size of fewer than 325 meshes. Accordingly, this method would be helpful to apply the acoustic emission technology in enhancing the solid detection for the multiphase system.

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Investigation on Sand Particle Impingement on Steel Pipe in Two Phase Flow Using Acoustic Emission Technology

Cited by 5 publications

References 4 publications

Improving sand flow rate measurement of commercial ASDs and comparison with ultrasonic spectral analysis and filtering

Improving sand flow rate measurement of commercial ASDs and comparison with ultrasonic spectral analysis and filtering

Experimental Investigations of Offshore Sand Production Monitoring Based on the Analysis of Vibration in Response to Weak Shocks

Monitoring Solid Phase in Oil-Water-Sand Multiphase Flow in Impact Parts Based on Acoustic Emission Sensor Technology

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