Inflow Control Device and Near-Wellbore Interaction

Moen, Terje; Asheim, Harald

doi:10.2118/112471-ms

Cited by 18 publications

(5 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“… 5 In 2006, it was first confirmed that ICDs had the effect of stabilizing the fluid flow in the wellbore and delaying the bottom water breakthrough in the gravel layer. 6 The nozzle-type ICD 7 changed the spiral flow channel of the original ICD, generating a large pressure drop when the fluid passes through the nozzle. It could work well in increasing the friction resistance at the root of the wellbore where bottom water coning occurred, limiting the water flow into the wellbore and balancing the fluid pressure inside the wellbore.…”

Section: Introductionmentioning

confidence: 99%

Modeling and Simulation of Autonomous Inflow Control Devices for Gas Exploitation

2023

View full text Add to dashboard Cite

Horizontal well technology is an efficient method of oil and gas exploitation. The goal of increasing oil production and improving productivity can be achieved by increasing the contact area between the reservoir and the wellbore. The presence of bottom water cresting reduces the efficiency of oil and gas production significantly. Autonomous inflow control devices (AICDs) are widely used to delay the influx of water into the wellbore. Two kinds of AICDs are proposed to restrain the bottom water breakthrough during natural gas production. The fluid flows in the AICDs are simulated numerically. The pressure difference between the inlet and outlet is calculated to evaluate the ability of blocking the flow. A dual-inlet design can increase the flow rate of AICDs, thus enhancing the water blocking effect. Numerical simulations show that the devices can block water flowing into the wellbore effectively.

show abstract

Section: Introductionmentioning

confidence: 99%

Modeling and Simulation of Autonomous Inflow Control Devices for Gas Exploitation

2023

View full text Add to dashboard Cite

show abstract

“…However, a problem has been found in the SAGD process, whereby the steam chamber distribution is heterogeneous along the horizontal wellbore. , This issue, which is known as the “heel-to-toe effect”, poses a negative impact on the oil sweep efficiency and the ultimate recovery. − Parappilly and Zhao investigated the feasibility of crude oil production utilizing SAGD technology with a long well in 2009 . That study discovered the potential for heterogeneous extension of the steam chamber along the entire length of the well due to the pressure drop in the horizontal wells.…”

Section: Introductionmentioning

confidence: 99%

Study on the Uniform Steam Injection Method of Horizontal Wells during the SAGD Process in Heavy Oil Fields

Wang,

Liu,

Zhao

et al. 2023

Energy Fuels

View full text Add to dashboard Cite

Uniform steam chamber expansion over the whole well length significantly affects the development of steam-assisted gravity drainage (SAGD) in oil reservoirs. Currently, most research is focused on optimizing the steam suction profile through the production wells. While uniform steam injection (USI) along horizontal wells is often neglected and studied in only a few reports, it is a critical technique to enhance oil recovery. Herein, a novel type of USI-SAGD process using an injector tube with variable density perforation was developed. The performance of USI-SAGD was evaluated based on a custom-built physical experimental setup and numerical simulation. The experimental findings demonstrate that the USI-SAGD method exhibits a more homogeneous steam injection profile by mitigating the accumulation of wellbore fluids and, thereby, making the steam injection profile more uniform. This resulted in a notable increase of 22.6% in the uniformity of steam chamber development and an 8.02% increase in oil recovery compared with the single-point SAGD method under identical experimental conditions. Numerical simulations indicate that USI-SAGD effectively regulates the outflow profile and mitigates the decrease in steam quality caused by steam overlay along the injector. As a result, the method achieves an even distribution of the pressure and steam quality, which corresponds to an improvement in steam injection uniformity. The perforating point number and distribution were optimized, which indicated an optimal critical value of 30 perforating points per 1000 m wellbore and a 4:6 distribution ratio for improving the uniformity of the steam chamber and enhancing the production performance in the horizontal well. This work proves that USI-SAGD is efficient in improving heavy oil production and has great potential for use in field applications.

show abstract

“…According to working theory, the ICD has been categorized into three main types: channel, nozzle, and mixture. The pressure loss of unwanted fluids in the channel ICD is increased by lengthening the flow path of fluids. − The flow rate of unwanted fluids in the nozzle ICD is restricted by increasing pressure loss in parts of an area. − The mixture ICD combines the characteristics of both the channel and nozzle types to restrict unwanted fluids. − However, all these ICDs can only restrict the flow rate, balance the fluid production profile, and delay water coning before bottom water breakthrough occurs in horizontal wells; they lose the water control ability after water breaks through the wellbore.…”

Section: Introductionmentioning

confidence: 99%

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

Cui

et al. 2020

ACS Omega

View full text Add to dashboard Cite

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.

show abstract

Inflow Control Device and Near-Wellbore Interaction

Cited by 18 publications

References 9 publications

Modeling and Simulation of Autonomous Inflow Control Devices for Gas Exploitation

Modeling and Simulation of Autonomous Inflow Control Devices for Gas Exploitation

Study on the Uniform Steam Injection Method of Horizontal Wells during the SAGD Process in Heavy Oil Fields

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

Contact Info

Product

Resources

About