A statistics-based model for cavitating polydisperse bubble clouds and their two-way-flow coupling

2021 ◽  
Vol 149 (4) ◽  
pp. A29-A30
Author(s):  
Spencer H. Bryngelson ◽  
Tim Colonius
Keyword(s):  
Flow Coupling ◽  
Bubble Clouds

Evoked potentials and activation flow coupling in endotoxin mediated sepsis syndrome in rats

2005 ◽  
Vol 25 (1_suppl) ◽  
pp. S196-S196
Author(s):  
Bernhard Rosengarten ◽  
Mirko Hecht ◽  
Ardeschir Ghofrani ◽  
Manfred Kaps
Keyword(s):  
Evoked Potentials ◽  
Sepsis Syndrome ◽  
Flow Coupling

Reservoir and Wellbore Flow Coupling Model for Fishbone Multilateral Wells in Bottom Water Drive Reservoirs

2021 ◽  
pp. 1-27
Author(s):  
ping Yue ◽  
Jiantang Zhou ◽  
Li Xia Kang ◽  
Ping Liu ◽  
Jia Chunsheng ◽  
...  
Keyword(s):  
Oil Recovery ◽  
Bottom Water ◽  
Water Reservoir ◽  
Pressure Profile ◽  
Coupling Model ◽  
New Model ◽  
Flow Coupling ◽  
Field Situation ◽  
Production Wells ◽  
Actual Field

Abstract Nowadays, different types of complex production wells are applied in challenging reservoirs in order to maximize oil recovery. A representative application is the fishbone multilateral horizontal wells, which have advantages of expanding the drainage area information and reducing the pressure loss in the long single lateral wellbore. This paper investigated the performance of fishbone wells and derived a wellbore and reservoir flow coupling model for fishbone multilateral wells in the bottom water reservoirs. The new model considered plenty of parameters that may have significant impacts on productivity and pressure drop in the well, including the fishbone structure, the main and branch wellbores' length, the spacing distance of the branch wellbores, wellbore radius, and preformation parameters. Furthermore, a sensitivity analysis example by the numerical method presented in this paper. Compared with other models, our coupling model, when it is degraded to horizontal well, is more consistent with the results of actual field situation. In another comparative analysis, the results of the new model with branches show a good match with the numerical simulation results by software. The proposed method in this paper can be used as a valuable tool to analyze the productivity, wellbore inflow profile, and pressure profile of the fishbone multilateral wells in the bottom water reservoir.

scholarly journals A New Slip Length Model for Enhanced Water Flow Coupling Molecular Interaction, Pore Dimension, Wall Roughness, and Temperature

2019 ◽  
Vol 2019 ◽  
pp. 1-12
Author(s):  
Lei Li ◽  
Yuliang Su ◽  
Han Wang ◽  
Guanglong Sheng ◽  
Wendong Wang
Keyword(s):  
Enhancement Factor ◽  
Slip Length ◽  
Work Of Adhesion ◽  
Wall Roughness ◽  
Flow Coupling ◽  
Pore Dimension ◽  
Fractal Roughness ◽  
Flow Enhancement ◽  
Great Surface ◽  
Small Work

In this paper, a slip length model is proposed to analyze the enhanced flow based on the Hagen–Poiseuille equation. The model considers the multimechanisms including wall-water molecular interactions, pore dimensions, fractal roughness, and temperature. The increasing wall-water interactions result in the greater slip length and flow enhancement factor. The increased temperature enhances the kinetic energy of water molecules that leads to great surface diffusion coefficient and small work of adhesion. The wall roughness can decrease the slip length and flow enhancement factor in hydrophilic nanopores. This work studies the effects of multimechanisms on slip length and flow enhancement factor theoretically, which can accurately describe the liquid flow in nanopores.

Electric flow coupling in the HCLL blanket concept

2008 ◽  
Vol 83 (7-9) ◽  
pp. 1232-1237 ◽  
Author(s):  
C. Mistrangelo ◽  
L. Bühler
Keyword(s):  
Flow Coupling

scholarly journals Establishment and application of heat flow coupling model

2019 ◽  
Vol 23 (1) ◽  
pp. 207-218
Author(s):  
Jun He ◽  
Gao-Liang Peng ◽  
Ling-Tao Yu ◽  
Chen-Zheng Li ◽  
Chuan-Hao Li ◽  
...  
Keyword(s):  
Heat Flow ◽  
Real Time ◽  
Initial Conditions ◽  
Coupling Model ◽  
Productive Efficiency ◽  
Maximum Deviation ◽  
Inspection Method ◽  
The Real ◽  
Flow Coupling ◽  
Washing Process

Wax deposition on walls of oil pipes is a common occurrence in crude oil extraction and is one of the major impediments to oilfield production. The most common method of paraffin removal is superconducting car thermal washing. This study proposes a heat flow coupling model that can analyze the temperature of the tubing-casing annular space to solve the low efficiency problem caused by adjusting initial parameters empirically. Using the superconducting car thermal washing process at the test oil well in city of Daqing, Chine as research object, the real-time temperature of annulus under various initial conditions is acquired by the fully-distributed Raman optical fiber temperature monitoring system. Compared with the real time data, theoretical data has a maximum deviation of 5?C, this result verifies the accuracy of the model. Based on the model, the study investigates the optimal initial parameters of superconducting car thermal washing by taking effective depth as an optimization goal. The optimal parameters for oil wells with different working conditions are obtained to improve the effectiveness of paraffin removal and increase thermal efficiency. This study provides theoretical support and an inspection method to promote superconducting car thermal washing and paraffin removal as well as to improve productive efficiency.

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