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An Integrated Study Focusing on Baffle Characterization and Development Optimization

机译:综合研究,重点研究挡板特征和发展优化

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The Middle East carbonate reservoirs are mostly reef flat sedimentary complexes, which are high heterogeneous and have extensive baffles. It brings great challenges to the efficient development of such reservoirs. Focus on the problem, a method of describing baffle distribution conjunctively using static and dynamic data is put forward in this paper. The distribution of baffles in the target formation is characterized based on core observation, well loggings, image logs, etc. Then, their impact towards reservoir performance is evaluated based on production data and dynamic surveillance data. Based on the study, it is acquired that cementation mainly controlled the upper baffles and compaction controlled the lower. Generally speaking, permeability of baffle is higher in the crest area and lower in the flank area. Baffles are stably distributed throughout the reservoir, although their ability to block fluid flow varies from region to region. The existence of baffles and their ability to block fluid flow had impact to the development effect, so development optimization and scheme comparison carried out. The corresponding development strategies are proposed for reservoirs with extensive baffles. Injectors and producers with highly-deviated well-type will help establish effective displacement system and achieve better reservoir production, it can improve the development effect and enhance oil recovery. This study offers a comprehensive case study for engineers and geologists to better understand this reservoir, it also provides a methodology that can be referred when developing similar fields.
机译:中东碳酸盐储层大多是珊瑚礁扁平沉积配合物,这是高异质的并且具有广泛的挡板。它为这些水库的有效发展带来了巨大挑战。专注于该问题,本文提出了一种使用静态和动态数据结合使用静态和动态数据的挡板分布的方法。目标形成中挡板的分布是基于核心观察,井测井,图像日志等的特征。然后,基于生产数据和动态监控数据来评估它们对储层性能的影响。基于该研究,获得了胶结主要控制上挡板并压实控制较低。一般而言,围栏区域的挡板渗透性较高,侧翼区域较低。挡板稳定地分​​布在整个储层中,尽管它们阻断流体流动的能力从地区变化。挡板的存在及其阻断流体流动的能力对开发效果产生了影响,因此开发优化和方案比较进行。相应的发展策略提出了具有广泛挡板的水库。具有高度偏离良好类型的喷射器和生产者将有助于建立有效的位移系统并实现更好的水库生产,可以提高开发效果,提高石油回收。本研究为工程师和地质学家提供了全面的案例研究,以更好地了解该水库,它还提供了一种在开发类似领域时可以参考的方法。

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