Characterization of Rock and Fluid Properties for Low-Salinity Water Flooding of Highly Paraffinic Oil in a Deep Low-Permeability High-Pressure High-Temperature Offshore Carbonate Reservoir

N. Singh, P. Gopani, H. Sarma, P. Mattey, D. Negi
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引用次数: 2

Abstract

Characterization of the rock and fluids is an essential step in screening a reservoir for Low-Salinity Water Flooding (LSWF). A detailed characterization of rock and fluid properties using appropriate methods is being presented for LSWF in a low-permeability deep carbonate reservoir together with a critical analysis of findings. The techniques used are assessed against other possible alternative methods, with inferences drawn on advantages and disadvantages of each to better interpret and apply data so gathered. In so doing, discussions on their key features as to how they can be used effectively and efficiently to screen a reservoir for LSWF are also provided. Such integration of results with other available reservoir and production data should result in a comprehensive description of the target reservoir, and it will help interpret the mechanisms and process dynamics more reliably during a low-salinity waterflood. This integration should allow us not only to gain confidence on the experimental studies but could also help optimize the key parameters responsible for formulating a more robust, reliable and representative regime for tests relevant to the LSWF prior to its eventual implementation in the field. To authors’ knowledge, such integration of experimental studies has not yet been reported in the literature, particularly for the tight carbonate reservoirs with highly paraffinic oil.
海上深层低渗透高压高温碳酸盐岩油藏高石蜡油低矿化度水驱岩石流体性质表征
岩石和流体的表征是筛选储层进行低矿化度水驱(LSWF)的重要步骤。本文采用适当的方法对低渗透深层碳酸盐岩储层中的LSWF进行了岩石和流体性质的详细描述,并对结果进行了批判性分析。对所使用的技术与其他可能的替代方法进行评估,并根据每种方法的优点和缺点进行推断,以便更好地解释和应用所收集的数据。在此过程中,还讨论了它们的主要特征,即如何有效和高效地使用它们来筛选储层中的LSWF。将结果与其他可用的储层和生产数据相结合,可以对目标储层进行全面的描述,并有助于在低矿化度注水过程中更可靠地解释机理和过程动力学。这种整合不仅可以使我们对实验研究获得信心,而且还可以帮助优化关键参数,以便在最终在实地实施LSWF之前,为与之相关的测试制定一个更健全、更可靠和更具代表性的制度。据作者所知,这种实验研究的整合尚未在文献中报道,特别是对于具有高石蜡油的致密碳酸盐岩储层。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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