The theory of the automatic phase selection controller and its performance analysis

Yang, Mingjun; Li, Haitao; Xie, Jiangjian; Wang, Yongqing; Jiang, Rui; Zhu, Shiyan; Liu, Ying

doi:10.1016/j.petrol.2016.03.001

Cited by 11 publications

(5 citation statements)

References 1 publication

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“…These results were to have a comparable trend to other numerical experiments reported in the literatu example, a reduction of 15% (Gurses et al, 2019) or 90% (Eltaher et al, 2014) ha reported for gas production. Alternatively, with water, there have been reported tions of 82% [21] or 12% [13]. On the contrary, the RCP at the top had a higher oil production for a longer time span.…”

Section: Production and Oscillation Profilesmentioning

confidence: 99%

“…For example, a reduction of 15% (Gurses et al, 2019) or 90% (Eltaher et al, 2014) has been reported for gas production. Alternatively, with water, there have been reported reductions of 82% [21] or 12% [13].…”

Section: Production and Oscillation Profilesmentioning

confidence: 99%

“…One of the first studies was conducted by Fripp et al, who compared the differences in the hydrodynamic profile of oil and water caused by the contrasts in their physical properties [7]. Yang et al [13] characterized the hydrodynamic profile on diode AICDs for different oils, comparing different densities and viscosities. Moreover, an erosion study was conducted to determine the most affected zones.…”

Section: Introductionmentioning

confidence: 99%

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In-Depth Understanding of ICD Completion Technology Working Principle

Pinilla

Stanko

Asuaje³

et al. 2022

Processes

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The rate-controlled production (RCP) inflow control devices (ICDs) are valves placed in the lower completion of oil and gas wells, capable of autonomously controlling the reservoir inflow. This completion technology self-regulates the inflow of undesired phases, such as water, by choking the flow after the breakthrough event, thus improving the recovery factor and reducing water production. In this context, this article presents a numerical study that describes the working principle of RCP valves based on a computational fluid dynamics (CFD) analysis. The numerical models are based on the conservation equations of fluid flow, the volume of fluid (VOF) multiphase flow model, and the dynamic fluid body interaction (DFBI) model to simulate the valve’s movement caused by its interaction with the flow. This study demonstrates the possibility of studying RCP valves alone or coupled with the whole completion assembly and reservoir rock. The difference in the valve efficiency after considering the entire completion assembly and reservoir rock is 19% less compared with the stand-alone analysis of the valve. Finally, this study provides a deep understanding of the fluid dynamics near the wellbore, the completion assembly, and the RCP valves, along with its chocking, which could be helpful to future researchers interested in improving multiphase flow efficiency in subsurface processes.

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Section: Production and Oscillation Profilesmentioning

confidence: 99%

Section: Production and Oscillation Profilesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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In-Depth Understanding of ICD Completion Technology Working Principle

Pinilla

Stanko

Asuaje³

et al. 2022

Processes

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show abstract

“… 45 In addition to the abovementioned fluid diode AICD, there are many other types of channel-type AICD, such as a new adaptable inflow control devices designed by Zeng et al, 46 , 47 which guide flow through a Y-diverter and restricts water flow through a disk limiter. The automatic phase selection controller designed by Yang et al 48 is used to suppress water production after water breakthrough in bottom water coning reservoirs; its structure looks like a q shape, which mainly depends on the difference between oil and oil viscosity; water that rotates at a high speed in the tool produces a greater pressure drop than oil that does not rotate substantially. The new AICD designed by Li et al 49 is more suitable for horizontal wells in submerged reservoirs with high liquid production, and the automatic inflow-regulating valve (AIRV) designed by Cui et al 50 can be used to enhance the control of water inflow before and after water breakthroughs in horizontal wells.…”

Section: Structure and Working Principle Of The New Aicdmentioning

confidence: 99%

Design and Numerical Simulation Study of a Novel AICD for Water Control and Gas Production in Gas Wells

Gao,

Li,

Nie

et al. 2023

ACS Omega

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The automatic inflow control device (AICD) used for water control and gas recovery in gas wells as the core component of gas well intelligent layered/segmented production and water control technology is very important for the development of advanced well completion (AWC) technology in water-producing gas reservoirs. Therefore, the design of AICD to ensure that the gas flows smoothly inside it and to keep water under control to a greater extent can maximize the performance of the AICD, and the most important thing is to restrict the water in the formation from entering the wellbore. However, currently, there are very few designs and research on the AICD used for water control and gas production in the gas wells, and the performance of this type of tool and the law of gas and water flow inside it are not perfect, so more in-depth research is needed. In this paper, a new type of AICD is designed to realize the function of water control and gas flow smoothly, and the DoE of the new AICD is carried out, determining the factors that will affect the key technical indicators and the factors that may have interactive effects, using the numerical simulation method of computational fluid dynamics to carry out optimal design, conducting fluid physical property sensitivity analysis, and flow rate applicability analysis. The results show that the tool is not sensitive to the viscosity of water and gas in different gas reservoirs but is very sensitive to the density of water and gas. When the gas/water flow rate ratio is less than 4, it can exert its water control effect. In addition, the results of multiple sets of physical experiments are well consistent with the simulation results; the average deviation of single-phase water is 10.91% and the average deviation of single-phase gas is 11.85%. Computational fluid dynamics and physical experiment results show that, under these conditions, the difference in fluid flow characteristics can be fully exploited; the channel is automatically identified to produce a small gas pressure drop and a large water flow pressure drop. The research in this paper belongs to the key technology of the AWC technology of gas wells in the new water control strategy of the current and has a certain reference value to make up for the defects of drainage gas recovery technology in the water management strategy..

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“…The floating ball AICD identifies fluids using the density difference of fluids, and it induces fluids into different channels; thus, water or gas control is realized . The channel AICD has special flow paths that are suitable for different fluids and can induce different fluids into different flow paths; thus, the additional pressure loss of an unexpected fluid is increased. − However, AICDs, which generate different pressure losses using density differences, cannot control water accurately because the effect of flowing fluids on movable components is not fully considered. AICDs, which generate different pressure drops based on viscosity difference, cannot control water efficiently because they do not have movable components.…”

Section: Introductionmentioning

confidence: 95%

A Novel Automatic Inflow-Regulating Valve for Water Control in Horizontal Wells

Cui

et al. 2020

ACS Omega

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Horizontal wells are prone to water coning and imbalanced inflow profile problems because of reservoir heterogeneity, the “heel-toe” effect, and different water avoidance heights. To solve these problems, an automatic inflow control device (AICD) technology is developed, as the traditional inflow control device (ICD) technology is frequently invalid after water breakthrough. In this study, a novel water control tool, an automatic inflow-regulating valve (AIRV), was designed to balance inflow profiles before water breakthrough and to limit water inflow after water breakthrough. With the use of a movable part, the AIRV can quickly distinguish fluids and limit the water output based on differences in fluid properties and the swirling flow principle. The water control efficiency and ability of the AIRV were simulated and optimized using computational fluid dynamics (CFD) software and verified experimentally using a water control testing system specially designed for the AIRV. We observed that (1) the total water force on the movable component of the AIRV is notably larger than that of oil because the swirling intensity of water is significantly higher than that of oil; moreover, the force directions of water and oil are opposite to each other. (2) The AIRV is sensitive to the flow rate and fluid viscosity but not to fluid density. (3) A higher water cut results in a higher AIRV pressure loss. The results of the CFD simulation and experimental test demonstrated that the AIRV has a significant water control ability and efficiency, particularly under conditions of a high production rate and high water cut. Thus, the AIRV can be used to enhance the control of water inflow before and after water breakthroughs in horizontal wells.

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The theory of the automatic phase selection controller and its performance analysis

Cited by 11 publications

References 1 publication

In-Depth Understanding of ICD Completion Technology Working Principle

In-Depth Understanding of ICD Completion Technology Working Principle

Design and Numerical Simulation Study of a Novel AICD for Water Control and Gas Production in Gas Wells

A Novel Automatic Inflow-Regulating Valve for Water Control in Horizontal Wells

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