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首页> 外文期刊>Journal of Petroleum Science & Engineering >Modeling of flow splitting for production optimization in offshore gas-lifted oil fields: Simulation validation and applications
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Modeling of flow splitting for production optimization in offshore gas-lifted oil fields: Simulation validation and applications

机译:海上气举油田中用于生产优化的分流建模:仿真验证和应用

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摘要

In modern offshore oil fields, wells can be equipped with routing valves to direct their production to multiple manifold headers, a strategy that is routinely adopted in practice either to provide resilience to equipment failure or to improve production. However, the existing models for production optimization do not account for splitting of flows and therefore require the wells to be connected to a single header. To this end, this work develops a nonlinear model of flow splitting that reproduces the complex behavior observed in multiphase-flow simulation. This model is further approximated with multidimensional piecewise-linear functions to a desired degree of accuracy with respect to simulated behavior. These piecewise-linear functions enable the development of a Mixed-Integer Linear Programming (MILP) formulation for production optimization, which decides between single and multiple routing of wells to headers. The effectiveness of this MILP formulation is assessed in a synthetic but representative gas-lifted oil field modeled in a standard simulator. (C) 2015 Elsevier B.V. All rights reserved.
机译:在现代海上油田中,油井可以配备选路阀,以将其生产引向多个歧管集管,这种策略在实践中通常被采用以提供对设备故障的适应力或改善产量。但是,现有的用于生产优化的模型不能解决流量分离问题,因此需要将井连接到单个集管。为此,这项工作建立了一个非线性的分流模型,该模型重现了在多相流模拟中观察到的复杂行为。相对于模拟行为,该模型还可以使用多维分段线性函数近似到所需的精确度。这些分段线性函数支持开发用于生产优化的混合整数线性规划(MILP)公式,该公式可确定井到集管的单路或多路路线。在标准模拟器中模拟的合成但有代表性的气提油田中评估了该MILP配方的有效性。 (C)2015 Elsevier B.V.保留所有权利。

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