Jove
Visualize
联系我们
JoVE
x logofacebook logolinkedin logoyoutube logo
关于 JoVE
概览领导团队博客JoVE 帮助中心
作者
出版流程编辑委员会范围与政策同行评审常见问题投稿
图书馆员
用户评价订阅访问资源图书馆顾问委员会常见问题
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experiments存档
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教师资源中心教师网站
使用条款与条件
隐私政策
政策

相关概念视频

Typical Model Studies01:30

Typical Model Studies

200
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.
200
Modeling and Similitude01:12

Modeling and Similitude

160
Scaled modeling is a fundamental technique in engineering, enabling the study of large and complex systems by creating smaller, manageable replicas that recreate critical characteristics of the original. In hydrology and civil infrastructure, for example, scaled models of dams help analyze water flow, turbulence, and pressure. This method allows for accurate predictions of real-world behavior within a controlled environment, significantly reducing the cost and time involved in full-scale...
160
Density, Specific Weight, Specific Gravity and Compressibility of Fluid01:27

Density, Specific Weight, Specific Gravity and Compressibility of Fluid

191
Density, specific weight, specific gravity, and compressibility are fundamental properties of fluids. Density is the mass per unit volume, characterizing the mass of a fluid system. It influences buoyancy, pressure, flow dynamics, viscosity, thermal conductivity, and sound propagation. For instance, in pipeline design, accurate density measurements ensure that the pipeline can handle the fluid's mass.
Specific weight represents the weight per unit volume and is calculated by multiplying...
191
Design Example: Creating a Hydraulic Model of a Dam Spillway01:21

Design Example: Creating a Hydraulic Model of a Dam Spillway

110
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.
110
Density and Archimedes' Principle01:05

Density and Archimedes' Principle

6.5K
When a lump of clay is dropped into water, it sinks. But if the same lump of clay is molded into the shape of a boat, it starts to float. Because of its shape, the clay boat displaces more water than the lump and experiences a greater buoyant force, even though its mass is the same. The same holds true for steel ships. The average density of an object majorly determines if the object will float. If an object's average density is less than that of the surrounding fluid, it will float. The...
6.5K
Design Example: Design of an Irrigation Channel01:27

Design Example: Design of an Irrigation Channel

48
Trapezoidal channels are widely used in irrigation systems due to their cost-effectiveness and efficiency in conveying water. Trapezoidal channels feature a flat bottom and sloping sides, making them stable and easier to construct compared to other shapes. The bottom width and side slope ratio are determined based on the required flow capacity and site conditions. The side slope is kept gentle for unlined channels to prevent soil erosion.Hydraulic parameters in channel design include the flow...
48

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序
Same author

Adsorption-Induced Pore Volume Deformation: Implications for Excess Adsorption in Kerogen Matrices.

Langmuir : the ACS journal of surfaces and colloids·2026
Same author

Pyrite-assisted mechanochemical leaching of chalcopyrite concentrate in sulfuric acid under non-oxidative conditions.

Scientific reports·2026
Same author

Synergistic effects of alkalines, salts, and silica nanoparticles on in-situ surfactant generation from different crude oils in relation to enhanced oil recovery.

Scientific reports·2026
Same author

Experimental investigation of coal tailing-derived nanoparticles for CO<sub>2</sub> foam stabilization.

Environmental research·2026
Same author

Gene expression programming for modeling and predicting of leaching of chalcopyrite concentrates using 1-hexyl-3-methyl-imidazolium hydrogen sulfate ionic liquid aqueous solution.

Scientific reports·2026
Same author

A Comprehensive Review of the Characteristics Associated with Lightweight Cement.

ACS omega·2026

相关实验视频

Updated: May 21, 2025

Microfluidic Devices for Characterizing Pore-scale Event Processes in Porous Media for Oil Recovery Applications
08:38

Microfluidic Devices for Characterizing Pore-scale Event Processes in Porous Media for Oil Recovery Applications

Published on: January 16, 2018

10.4K

人工智能方法模拟等效循环密度,以改善钻井泥管理

Mohammad-Saber Dabiri1, Reza Haji-Hashemi1, Abdolhossein Hemmati-Sarapardeh1,2

  • 1Department of Petroleum Engineering, Shahid Bahonar University of Kerman, Kerman 76169-141111, Iran.

ACS omega
|May 19, 2025
PubMed
概括

本研究介绍了先进的机器学习模型,用于预测钻井操作中的等效循环密度 (ECD). 草优化算法支持向量回归 (GOA-SVR) 模型在ECD预测中表现出卓越的准确性和稳定性.

更多相关视频

Measuring Carbon-based Contaminant Mineralization Using Combined CO2 Flux and Radiocarbon Analyses
11:19

Measuring Carbon-based Contaminant Mineralization Using Combined CO2 Flux and Radiocarbon Analyses

Published on: October 21, 2016

11.6K
Reservoir Condition Pore-scale Imaging of Multiple Fluid Phases Using X-ray Microtomography
08:02

Reservoir Condition Pore-scale Imaging of Multiple Fluid Phases Using X-ray Microtomography

Published on: February 25, 2015

12.5K

相关实验视频

Last Updated: May 21, 2025

Microfluidic Devices for Characterizing Pore-scale Event Processes in Porous Media for Oil Recovery Applications
08:38

Microfluidic Devices for Characterizing Pore-scale Event Processes in Porous Media for Oil Recovery Applications

Published on: January 16, 2018

10.4K
Measuring Carbon-based Contaminant Mineralization Using Combined CO2 Flux and Radiocarbon Analyses
11:19

Measuring Carbon-based Contaminant Mineralization Using Combined CO2 Flux and Radiocarbon Analyses

Published on: October 21, 2016

11.6K
Reservoir Condition Pore-scale Imaging of Multiple Fluid Phases Using X-ray Microtomography
08:02

Reservoir Condition Pore-scale Imaging of Multiple Fluid Phases Using X-ray Microtomography

Published on: February 25, 2015

12.5K

科学领域:

  • 石油工程是石油工程中的一个.
  • 机器学习应用 机器学习应用
  • 钻井优化 钻井优化

背景情况:

  • 精确管理等效循环密度 (ECD) 对于防止井控制问题,如流失循环和形成裂纹至关重要.
  • 使用深孔工具或复杂模型的传统ECD计算方法可能是低效的.
  • 这项研究侧重于使用更少的输入变量以提高效率的简化方法.

研究的目的:

  • 开发和评估先进的机器学习模型,以提高简单性和效率来预测ECD.
  • 将各种机器学习算法的性能与现有的实证模型进行比较.
  • 确定影响ECD预测的关键输入变量,并评估模型的操作范围.

主要方法:

  • 使用基于水的流体利用伊朗油田的两个井的2367个现场测量的数据集.
  • 应用了七种先进的机器学习算法:CFNN,GRNN,WNN,PSO-SVR,FFA-SVR,GOA-SVR和GMDH用于相关性开发.
  • 使用70%的培训和30%的测试数据分割,分析关键变量:SPP,ROP和MW.

主要成果:

  • 所有应用的模型都在ECD预测方面表现出高准确度.
  • 该GOA-SVR算法产生了最可靠的结果,最小的平均绝对百分比相对误差 (AAPRE).
  • 该GMDH模型的表现优于现有的实证模型,特别是在三个关键输入变量方面;表面泥重量是最有影响力的因素.

结论:

  • 先进的机器学习模型,特别是GOA-SVR,为ECD预测提供了强大而准确的框架.
  • 开发的GMDH模型为ECD估计提供了一个卓越的经验替代方案.
  • 杆分析证实了拟议模型的高操作范围,只有很少有可疑或异常数据点.