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首页> 外文会议>SPE Kuwait Oil and Gas Show and Conference >Understanding the Key Parameters in Optimization of Steamfloods in Heavy Oil Fields with Application on SPE Comparative Solution Project
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Understanding the Key Parameters in Optimization of Steamfloods in Heavy Oil Fields with Application on SPE Comparative Solution Project

机译：了解股票对比解决方案项目中重油场中汽割优化的关键参数

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Heavy oil has gained significant attention and importance recently because of a multitude of reasons—growing demand of oil from developing economies, declining availability of easily recoverable or “conventional” oil, and significant advances in required technology. Even though the current estimates of heavy oil in place are three times that of conventional oil, they have only recently become economically viable because of sustained high oil prices. Improved technology has also driven down the recovery risk to minimal levels. The earliest recovery methods for heavy oil were largely cyclic stimulation, with steamflooding gaining acceptance in the 1970s. Despite other thermal and non-thermal recovery methods for heavy oil, steamflooding remains the most widely used technology. Current production by steamfloods alone totals more than 1.1 million BOPD. Previous studies have established how steamfloods are affected by parameters, such as rock properties, oil composition, degree of steam override, sweep efficiency, steam quality, and steam injection rate. However, the capital-intensive nature and low profit margins of the steamfloods mean that each field development decision is crucial and the oil recovery and margins are much more susceptible to uncertainties in oil price, well performance, facility costs, and subsurface parameters. While studies have been performed to corroborate the effect of subsurface parameters and economic uncertainties separately, there has been little advancement in terms of coupling all of them together in one unified study. In this paper, the effects of uncertainties on project net present value (NPV) are studied by coupling numerical reservoir simulation; a design-of-experiments based approach to handle uncertainty, an established economic model, and a commercial optimizing tool to determine the optimal field operating variables.
机译：由于石油来自发展中经济体，在所需的技术容易恢复或“传统”油和显著的进步持续下降的原因增长的需求，众多的重油已获得显著的注意和重视最近。尽管重油的替代目前的估计是常规石油的三倍，他们直到最近才成为经济上可行，因为持续的高油价。改进技术也压低了回收风险最低水平。重油最早的回收方法在很大程度上刺激循环，在20世纪70年代蒸汽驱获得认可。尽管对重油等热和非热采方法，蒸汽驱仍然是最广泛使用的技术。目前生产的steamfloods单独总计超过110万桶石油当量。以前的研究已经建立steamfloods如何由参数，如岩石性质，油组合物，蒸汽覆盖度，扫效率，蒸汽质量和蒸汽喷射速率的影响。然而，steamfloods的资本密集性和低利润率意味着每个领域的发展决策是至关重要的，油的回收和利润率更容易受到石油价格的不确定性，以及性能，设备成本，和地下参数。虽然研究已经完成单独证实的地下参数和经济的不确定性的影响，出现了小的进步，在一个统一的研究耦合所有的人都在一起的条款。在本文中，由耦合油藏数值模拟研究了项目的净现值（NPV）的不确定性的影响;一个设计的，实验为基础的方法来处理的不确定性，已建立的经济模型，以及商业优化工具，以确定最佳的现场操作变量。

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