在底层水库和水平井中对联流动力学的数值模拟
Mingjun Yang1, Rui Jiang2, Xinyuan Wu2
1School of Mechanical Engineering, Sichuan University of Science and Engineering, Zigong, 643099, China. yangmingjun@suse.edu.cn.
Scientific reports
|November 20, 2025
概括
了解水平井的流体流动是底层水库的关键. 透性和油粘度显著影响流量分布,指导更好的水控制完成设计,以提高油的回收.
科学领域:
- 石油工程是石油工程中的一个.
- 储水库工程 储水库工程
- 流体动力学 流体动力学
背景情况:
- 水平井对于开发地下水库至关重要.
- 准确了解下井生产性能对于有效的水控完成设计至关重要.
- 优化井生产率,成本效益和运营性能取决于这种理解.
研究的目的:
- 分析水平井内的流体流动力学,特别是在底层水库场景中.
- 评估关键参数对流体分布和流动行为在水库和井口的影响.
- 解决关于水平井中的流体流动方向性的现有研究缺口.
主要方法:
- 使用ANSYS FLUENT软件进行详细的流体流量分析.
- 评估了透性分布,生产压力差异,原油粘度和密度的影响.
- 在水库和井口环内研究了流体分布模式和转移表面的发生.
主要成果:
- 流体分配表面主要位于水平井口的脚附近.
- 通过性分布和原油粘度被确定为影响流量的主要因素.
- 脚部更高的透性和增加的油粘度 (200cP与50cP相比) 导致分布表面发生的次数更大.
结论:
- 透性分布和油粘度显著决定了水平井中的流体流动行为.
- 生产压力差异和油密度对流体分布的影响很小.
- 研究结果为优化底层水库的水平井开发和改善水控制策略提供了宝贵的见解.
相关概念视频
Typical Model Studies
607
Fluid mechanics model studies often utilize scaled-down systems to predict fluid behavior in full-scale environments, such as river flows, dam spillways, and structures interacting with open surfaces. Maintaining Froude number similarity in river models is crucial, as it replicates surface flow features like wave patterns and velocities.
607
Design Example: Creating a Hydraulic Model of a Dam Spillway
647
Scaled hydraulic models of dam spillways provide a practical way to replicate and study the intricate flow dynamics of these structures. Often built to a 1:15 ratio, these models allow for observing critical water behavior, such as velocity distribution, flow patterns, and energy dissipation.
647
Rapidly Varying Flow
406
Rapidly varying flow (RVF) in open channels is characterized by abrupt changes in flow depth over a short distance, with the rate of depth change relative to distance often approaching unity. These flows are inherently complex due to their transient and multi-dimensional nature, making exact analysis difficult. However, approximate solutions using simplified models provide valuable insights into their behavior.Key Features of Rapidly Varying FlowRVF is commonly observed in scenarios involving...
406
Steady, Laminar Flow Between Parallel Plates
771
Understanding steady, laminar flow between parallel plates is essential for analyzing and designing flow in narrow rectangular channels, commonly found in various water conveyance and drainage systems. The Navier-Stokes equations govern fluid motion and are generally challenging to solve due to their nonlinearity. However, simplifications are possible in certain cases, like the steady laminar flow between parallel plates. For this scenario, we assume steady, incompressible, laminar flow.
771
Uniform Depth Channel Flow
522
Uniform depth channel flow keeps fluid depth consistent along channels such as irrigation canals. In natural channels, such as rivers, approximate uniform flow is often assumed. This condition occurs when the channel’s bottom slope matches the energy slope, balancing potential energy lost from gravity with head loss due to shear stress. This balance prevents depth changes along the channel length, resulting in a steady, uniform flow.Uniform flow in open channels with a constant cross-section...
522
Hydraulic Jump: Problem Solving
451
To analyze a hydraulic jump in a rectangular channel with a flow speed of 6 meters per second, follow these steps:Calculate Effective Upstream Velocity:When the downstream gate closes, a hydraulic jump forms, traveling upstream at 2 meters per second. This wave speed combines with the initial channel flow velocity, creating an effective upstream velocity.Identify Flow Velocities Before and After the Hydraulic Jump:Upstream of the hydraulic jump, the effective flow velocity includes both the...
451


