A novel semi-analytical model of sulfur deposition for perforated wells in sour gas reservoirs DOI
Zhishang Zhang,

Tiyao Zhou,

Yuan Zhang

et al.

Physics of Fluids, Journal Year: 2025, Volume and Issue: 37(5)

Published: May 1, 2025

As global energy demand grows, sour gas reservoirs are attracting attention due to their abundant resources. However, sulfur deposition in perforation tunnels is a challenge, which will block the flow of fluids through into wellbore, resulting production impairment or even complete well shutdown. Therefore, this study aims develop an efficient prediction model for perforated wells. We first derived mathematical and then validated it against numerical simulation results. In addition, sensitivity analysis length, diameter, phase angle, spacing on conducted. Finally, with response surface methodology (RSM), four parameters were fully investigated. The results indicate that tunnel decreases gradually along direction. formation near large at both ends small middle. length increases, amount within while surrounding area decreases. Larger perforations can effectively diminish perforation. Additionally, single-sided perforation, uniform lines result less deposition. Increasing helps reduce With RSM, optimized saturation by up 86.59% 72.28%, respectively. This provides deposition, offers effective guidance design management development reservoirs.

Language: Английский

Numerical modeling of particle deposition and deposit erosion on a solid object with prescribed motion DOI
Hongying Li, Te Ba, Chenglei Wang

et al.

Physics of Fluids, Journal Year: 2025, Volume and Issue: 37(4)

Published: April 1, 2025

This work presents a numerical model to study the effects of deposition and deposit erosion on solid moving object under prescribed motion. In this model, fluid flow, particle transport, erosion, conjugate heat transfer, movement are all considered simultaneously in fully coupled manner. The is modeled as first-order reaction, while shear-driven using threshold law. evolution front captured level-set method with two functions. capabilities demonstrated flat plate undergoing translational, rotational, combined motions, well four-blade rotor translational rotational motions. results indicate that higher typically occurs upstream facing surface due concentration region compared downstream region. With an imposed volumetric generation within object, layer acts insulating barrier, impairing transfer from flowing leading average temperature clean object. Furthermore, total volume increases Damkohler numbers critical shear stress, lower Erosion numbers. Consequently, rises increase volume.

Language: Английский

Citations

0
A novel semi-analytical model of sulfur deposition for perforated wells in sour gas reservoirs DOI
Zhishang Zhang,

Tiyao Zhou,

Yuan Zhang

et al.

Physics of Fluids, Journal Year: 2025, Volume and Issue: 37(5)

Published: May 1, 2025

As global energy demand grows, sour gas reservoirs are attracting attention due to their abundant resources. However, sulfur deposition in perforation tunnels is a challenge, which will block the flow of fluids through into wellbore, resulting production impairment or even complete well shutdown. Therefore, this study aims develop an efficient prediction model for perforated wells. We first derived mathematical and then validated it against numerical simulation results. In addition, sensitivity analysis length, diameter, phase angle, spacing on conducted. Finally, with response surface methodology (RSM), four parameters were fully investigated. The results indicate that tunnel decreases gradually along direction. formation near large at both ends small middle. length increases, amount within while surrounding area decreases. Larger perforations can effectively diminish perforation. Additionally, single-sided perforation, uniform lines result less deposition. Increasing helps reduce With RSM, optimized saturation by up 86.59% 72.28%, respectively. This provides deposition, offers effective guidance design management development reservoirs.

Language: Английский

Citations

0