Investigation of Critical Sand-Deposition Velocity in Horizontal Gas/Liquid Stratified Flow
- Roberto Ibarra (Imperial College London) | Ram S. Mohan (University of Tulsa) | Ovadia Shoham (University of Tulsa)
- Document ID
- Society of Petroleum Engineers
- SPE Production & Operations
- Publication Date
- August 2017
- Document Type
- Journal Paper
- 218 - 227
- 2017.Society of Petroleum Engineers
- horizontal pipes, sand deposition, stratified flow, sand-gas-liquid flow
- 14 in the last 30 days
- 356 since 2007
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Experimental and theoretical investigations have been conducted on gas/liquid/sand stratified flow in horizontal pipes at low sand concentrations. A 4-in. experimental facility was designed and constructed, and data were acquired using air/water/glass-bead flow. The data include measurements of critical sand-deposition velocities—namely, the transition between moving and stationary beds. The data reveal that for a constant superficial liquid velocity, the critical sand-deposition mixture and liquid velocities increase with increasing sand concentrations. Moreover, for a given sand concentration, the critical liquid velocity is nearly the same for different superficial liquid velocities. The sand-deposition correlations of Oroskar and Turian (1980) for single-phase flow and Salama (2000) for two-phase flow were modified and extended to develop a new correlation. The developed correlation enables the prediction of critical sand-deposition mixture velocity for horizontal stratified flow as a function of sand concentration, along with other parameters. Comparison between the predictions of the developed correlation and experimental data from the literature (Angelsen et al. 1989; Najmi et al. 2015) reveals a good agreement, especially for a pipe diameter of 0.1 m.
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