基于密度的油水多相流系统生产数据分析方法

IF 2.6 3区 工程技术 Q3 ENERGY & FUELS Journal of Energy Resources Technology-transactions of The Asme Pub Date : 2023-04-25 DOI:10.1115/1.4062405
Kien Tran, Jonathan Garcez, L. Ayala H.
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引用次数: 0

摘要

本文提出了一种新的方法,以简化但准确的方式估计在边界主导流动条件下的油气藏储量。该方法结合了基于重新缩放密度的指数模型,并基于两相油和水物质平衡与多相井产能方程的耦合。目前用于储量计算的多相生产数据分析方法,包括基于密度的方法,都要确定饱和压力关系、多相伪压力和伪时间,以及其自身算法的迭代性质。本文提出的方法绕过了对伪变量计算的需要,从而排除了饱和压力关系的确定,并消除了最先进方法中经常存在的迭代性质。通过将所提出的模型的预测与具有恒定和可变井底压力约束的数值模型进行比较,验证了该模型,并发现其非常匹配。在所有情况下,相对误差都小于1%。
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A robust density-based approach to Production Data Analysis of Oil/Water multiphase flow system
This paper presents a novel approach to estimate reserves of oil and water reservoirs undergoing boundary-dominated flow conditions in a simplified yet accurate manner. The methodology incorporates rescaled density-based exponential models and is based on the coupling of two-phase oil and water material balances with multiphase well deliverability equations. Current multi-phase production data analysis methods employed for reserve calculations, including density-based approach, are subjected to the determination of saturation-pressure relationship, multiphase pseudo-pressure and pseudo-time, as well as the iterative nature of its own algorithm. The herein proposed approach circumnvents the need for pseudo-variables calculations, thus, precluding the determination of saturation-pressure relationship and removing the iterative nature often present in state-of-the-art approaches. The proposed model is validated by comparing its predictions to numerical models with both constant and variable bottomhole pressure constrainrs, and has been found to match closely. For all cases, relative errors are found to be less than 1%.
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来源期刊
CiteScore
6.40
自引率
30.00%
发文量
213
审稿时长
4.5 months
期刊介绍: Specific areas of importance including, but not limited to: Fundamentals of thermodynamics such as energy, entropy and exergy, laws of thermodynamics; Thermoeconomics; Alternative and renewable energy sources; Internal combustion engines; (Geo) thermal energy storage and conversion systems; Fundamental combustion of fuels; Energy resource recovery from biomass and solid wastes; Carbon capture; Land and offshore wells drilling; Production and reservoir engineering;, Economics of energy resource exploitation
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