Design and Validation of a Numerical Model for Inclined Oil-Water Flow
倾斜油水流数值模型的设计与验证
基本信息
- 批准号:EP/E026761/1
- 负责人:
- 金额:$ 10.75万
- 依托单位:
- 依托单位国家:英国
- 项目类别:Research Grant
- 财政年份:2007
- 资助国家:英国
- 起止时间:2007 至 无数据
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
The proposed research seeks to develop and validate a time dependent, 3D numerical model of inclined oil-water pipe flow. Inclined oil-water flows are commonly encountered downhole in oil wells at depths where the hydrostatic pressure is too high to allow dissolved gases to come out of solution. 'Production Logging Tools' (PLTs) are used by oil companies to make fluid flow measurements in such oil wells, as part of the process of maximising oil production from UK reservoirs, and the numerical model will greatly facilitate interpretation of measurement data from these PLTs. Inclined oil-water flows are highly complex due to the presence of Kelvin-Helmholtz (K-H) waves which intermittently form and decay. The effect of these waves is to induce large, time dependent variations in the magnitude and direction of the local velocity vector of both the oil and water as well as causing large time dependent variations in the local volume fraction distribution of both phases. It is intended that the numerical model will predict the fine detail of the structure of inclined oil-water flows including (i) time dependent variations in the local velocity vector distribution of both phases; (ii) time dependent variations in the local volume fraction distribution of both phases; and (iii) the structure and propagation speed of intermittent K-H waves in the flow. If the model is successful in predicting the propagation speed of K-H waves for a wide range of flow conditions this will greatly facilitate interpretation of a novel Production Logging technique which estimates the oil-water mixture superficial velocity from measurements of the K-H wave speed. The numerical model will be validated in oil-in-water flows using a laboratory flow loop and two independent, state of the art measurement techniques which enable time dependent measurements of the local velocity vector of the dispersed phase (oil) and the local volume fraction of both phases to be measured. These techniques are; (i) high speed dual-plane Electrical Impedance Tomography (EIT) and (ii) the local, multi-sensor conductance probe. Both techniques can operate at high values of the mean dispersed phase volume fraction (e.g. for oil-in-water flows EIT operates up to about 45% oil volume fraction and the local probe operates up to about 30% oil volume fraction) where optical techniques such as PIV and LDA cannot generally be used due to the effects of light scattering from multiple oil droplet surfaces and the opacity of the oil-water mixture. Given the highly novel and innovative nature of both high speed, dual-plane EIT and the local multi-sensor conductance probe, work will be undertaken to develop these techniques such that measurements obtained from them are of sufficient accuracy to be useful in validating the numerical model. Since both measurement techniques are novel, an important feature of the proposed research will be the cross-checking of these techniques against each other.
提出的研究旨在开发和验证倾斜油水管道流动的时间依赖的三维数值模型。在静水压力过高,无法使溶解气体从溶液中析出的油井中,通常会遇到倾斜的油水流动。“生产测井工具”(plt)被石油公司用于在此类油井中进行流体流量测量,作为英国油藏石油产量最大化过程的一部分,数值模型将极大地促进对这些plt测量数据的解释。由于开尔文-亥姆霍兹(K-H)波的间歇性形成和衰减,倾斜油水流动非常复杂。这些波的作用是在油和水的局部速度矢量的大小和方向上引起大的时间依赖性变化,以及在两相的局部体积分数分布中引起大的时间依赖性变化。该数值模型旨在预测倾斜油水流动结构的精细细节,包括:(1)两相局部速度矢量分布的时间相关变化;(ii)两相局部体积分数分布随时间的变化;(iii)流动中间歇K-H波的结构和传播速度。如果该模型能够成功预测大范围流动条件下K-H波的传播速度,这将极大地促进解释一种新的生产测井技术,该技术可以通过测量K-H波速度来估计油水混合物的表面速度。数值模型将在油水流动中进行验证,使用实验室流动环和两种独立的、最先进的测量技术,这些技术可以测量分散相(油)的局部速度矢量和两相的局部体积分数。这些技巧是;(1)高速双平面电阻抗断层扫描(EIT)和(2)局部多传感器电导探头。这两种技术都可以在较高的平均分散相体积分数下工作(例如,对于油-水流动,EIT可以工作到约45%的油体积分数,局部探头可以工作到约30%的油体积分数),而由于多个油滴表面的光散射和油水混合物的不透明性的影响,PIV和LDA等光学技术通常不能使用。考虑到高速双平面EIT和局部多传感器电导探头的高度新颖和创新性质,将开展工作来开发这些技术,以便从它们获得的测量结果具有足够的精度,可用于验证数值模型。由于这两种测量技术都是新颖的,因此提出的研究的一个重要特征将是这些技术相互交叉检查。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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John Billingham其他文献
Lubrication flow in grinding
- DOI:
10.1007/s10665-024-10383-x - 发表时间:
2024-07-25 - 期刊:
- 影响因子:1.400
- 作者:
Zak Crowson;John Billingham;Paul Houston - 通讯作者:
Paul Houston
Stochastic simplified modelling of abrasive waterjet footprints
磨料水射流足迹的随机简化建模
- DOI:
10.1098/rspa.2015.0836 - 发表时间:
2016 - 期刊:
- 影响因子:0
- 作者:
P. L. Torrubia;John Billingham;D. Axinte - 通讯作者:
D. Axinte
The evolution problem for the 1D nonlocal Fisher-KPP equation with a top hat kernel. Part 3. The effect of perturbations in the kernel
具有顶帽核的一维非局部 Fisher-KPP 方程的演化问题。第 3 部分。核中扰动的影响
- DOI:
10.1016/j.jde.2025.113412 - 发表时间:
2025-09-15 - 期刊:
- 影响因子:2.300
- 作者:
David John Needham;John Billingham - 通讯作者:
John Billingham
John Billingham的其他文献
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{{ truncateString('John Billingham', 18)}}的其他基金
Nonlinear water waves driven by the motion of a solid body
由固体运动驱动的非线性水波
- 批准号:
EP/H007830/1 - 财政年份:2010
- 资助金额:
$ 10.75万 - 项目类别:
Research Grant
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