Upstream Multiphase Flow Assurance Monitoring Using Acoustic Emission

Al-lababidi, S.; David, Éric; Addali, Abdulmajid

doi:10.5772/31332

Cited by 11 publications

(8 citation statements)

References 57 publications

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“…The proposed correlation and DAK correlation after Ppr of 10.5 still matches the measured data trend, but after Ppr of 18 the DAK correlation started to deviate from the measured data trend. (43) can be used to determine the gas compressibility. The proposed correlation is the only one that can predict the Z-factor for very high pressure gas reservoirs as shown in Eig.…”

Section: Resultsmentioning

confidence: 99%

“…Figure 10 shows the accuracy of the proposed correlation in estimating the Z-factor that in turn will give accurate estimation of the gas density and viscosity. Gas viscosity is an itTiportant factor in modeling of the three phase flow through pipes or through the reservoir and the accuracy of modeling this fiow depends on the accuracy of many parameters such as Z-factor, gas density, and gas viscosity [43,44]. The same problem will be faced with DAK correlation for high pressure range as discussed before.…”

Section: Resultsmentioning

confidence: 99%

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Development of a New Correlation of Gas Compressibility Factor (Z-Factor) for High Pressure Gas Reservoirs

Mahmoud

2013

Journal of Energy Resources Technology

140

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Gas compressibility factor or Z-factor for natural gas system can be determined from Standing-Katz charts using the pseudocritical gas pressure and temperatures. These charts give accurate values for Z-factors. Reservoir simulation softwares need accurate correlations to estimate the values of Z-factor; one of the well-known correlations is Dranchuk and Abou-Kassem (DAK) Correlation. This correlation gives large errors at high gas reservoir pressures, this error could be more than 100%. The error in estimating Z-factor will lead to big error in estimating all the other gas properties such as gas formation volume factor, gas compressibility, and gas in place. In this paper a new accurate Z-factor correlation has been developed using regression for more than 300 data points of measured Z-factor using MATLAB in addition to other data points at low pressure and temperature from Standing-Katz charts and DAK correlation. Old correlations give good estimation of Z-factor at low gas reservoir pressures below 41.37MPa (6000 psia), at high pressures the error started to appear. The developed correlation is a function of pseudoreduced pressure and temperature of the gas which makes it simpler than the existing complicated correlations. The new correlation can be used to deterhiine the gas compressibility factor at any pressure range especially for high pressures the error was less than 3% compared to the measured data. The developed correlation is very simple to be used, it just needs the gas specific gravity that can be used to determine the pseudocritical properties of the gas and at last the Z-factor can be determined. A new formula of reduced gas compressibility was developed based on the developed Z-factor correlation which in turn can be used to determine the gas compressibility. . All degrees in petroleum Engineering. He published more than 30 technical papers and 10 reviewed journal papers. Dr. Mahmoud areas of research are carbonate and sandstone acidizing, formation damage, hydraulic and acid fi'acturing of conventional and unconventional reservoirs, enhanced oil recovery of sandstone and carbonate reservoirs, drilling fluids, advanced well logging, multiphase flow in pipes, filter cake removal and characterization, sequestration and storage of carbon dioxide, and rock petrophysics, Mahmoud holds several patents in the areas of production enhancement and enhanced oil recovery.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Development of a New Correlation of Gas Compressibility Factor (Z-Factor) for High Pressure Gas Reservoirs

Mahmoud

2013

Journal of Energy Resources Technology

140

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“…Acoustic emission (AE) has also gained significant attention in multiphase flow. 149,153 Multiphase flow can be encountered in all oil and gas production systems and connected with all kinds of flow assurance problems discussed in the Introduction. Therefore, it is vital to understand the multiphase flow first before assessing the flow assurance issues.…”

Section: Multiphase Flow Assurance Problemsmentioning

confidence: 99%

“…Flow regime, pressure–temperature conditions, surface-tension forces, flow rates, pipe diameter, inclination angle, and fluid properties are the foremost factors controlling the multiphase flow in flowlines, risers, wellbores, etc. Therefore, it is vital to understand the multiphase flow dynamics/flow pattern in various pipe geometries. − Figure illustrates the various flow regimes for vertical and horizontal gas–liquid pipeline flow mapped with the visual schematics . Four standard multiphase flow regimes can generally be observed depending on the superficial gas/liquid velocities: (i) stratified flow, wherein an uninterrupted flow of liquid stream at the bottom and gas stream at the top can be observed as presented in Figure (with the increase in gas velocity, the regime can be moved toward a stratified wavy flow); (ii) slug flow, or plug flow, which can be observed while increasing the liquid velocity toward turbulent flow; (ii) annular flow, wherein a thin film of liquid phase adheres to the pipeline wall and a gas stream in the middle along with liquid droplets (refer to Figure ); and (iv) bubble flow, wherein the gas phase is bubbling through the liquid phase.…”

Section: Multiphase Flow Assurance Problemsmentioning

confidence: 99%

Perspectives of Flow Assurance Problems in Oil and Gas Production: A Mini-review

Kumar

2023

Energy Fuels

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Flow assurance is essential to a sustainable oil and gas production system; if not managed appropriately, it may cause huge CapEx/OpEx and is also a life-threatening phenomenon. Therefore, a systematic investigation of the formation/deposition mechanisms and reliable mitigation/management strategies is vital to control the significant flow assurance problems of gas hydrates deposition/blockage, wax/asphaltenes deposition, multiphase flow, scale formation, sand transport, and corrosion problems. This review aims to deliver rationalized and brief information accumulated in the current state of the art on all kinds of flow assurance issues faced by the oil and gas industries. This review will offer new insights into the fundamental mechanistic steps of deposition and blockage in oil and gas production systems that assist in developing new inhibition chemistries. The innovative techniques utilized to probe the depositions and assess the inhibitor’s performance are also presented along with their advantages and limitations. Overall, this paper will support flow assurance engineers in managing pipeline blockage risk triggered due to the problems mentioned above.

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“…This method is non-intrusive and is unaffected by the presence of dust as the apparatus is placed in an enclosed housing. Furthermore, since AE generated within a material, manifesting as elastic waves on the surface of the material, cover a relatively high frequency range (typically from 20 kHz to 1 MHz), lower frequency machine vibrations will not hinder the device’s performance [21]. …”

Section: Introductionmentioning

confidence: 99%

Real-time acoustic emission monitoring of powder mass flow rate for directed energy deposition

Whiting

Springer

Sciammarella

2018

Additive Manufacturing

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In order to ensure a reliable and repeatable additive manufacturing process, the material delivery rate in the directed energy deposition (DED) process requires in situ monitoring and control. This paper demonstrates acoustic emission (AE) sensing as a method of monitoring the flow of powder feedstock in a powder fed DED process. With minimal calibration, this signal closely correlates to the actual mass flow rate. This article describes the fabricated mass flow monitoring system, documents various conditions in which the actual flow rate deviates from its set value, and details situations that highlight the system’s utility. While AE mass flow monitoring is not free of concerns, its features make it an attractive measurement technique in the powder-fed DED process. The work presented here highlights the results obtained and illustrates that accurate monitoring of powder flow in real-time regardless of environmental conditions within the build chamber is possible.

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Upstream Multiphase Flow Assurance Monitoring Using Acoustic Emission

Cited by 11 publications

References 57 publications

Development of a New Correlation of Gas Compressibility Factor (Z-Factor) for High Pressure Gas Reservoirs

Development of a New Correlation of Gas Compressibility Factor (Z-Factor) for High Pressure Gas Reservoirs

Perspectives of Flow Assurance Problems in Oil and Gas Production: A Mini-review

Real-time acoustic emission monitoring of powder mass flow rate for directed energy deposition

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