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Laboratory Analysis of Capillary and Electric Properties of Rocks in PT Conditions

机译:PT条件下岩体毛细管和电性能的实验室分析

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Saturation evaluation and reserves estimation by well logs requires laboratory determination of capillary and electric properties including evaluation of cementation exponent (m) and saturation exponent (n). Crucial task is to improve reliability of modeling reservoir-rock residual water saturation based on laboratory methods. One of the solutions is to conduct studies under conditions simulating in-situ conditions which will allow more accurate determination of oil saturation when estimating reserves in the accumulation, and more correct prediction of field performance. Capillary pressure curves behaviour in PT conditions is critical for understanding the mechanism of water-oil saturation distribution throughout the hydrocarbon column height. The problem was solved with using special laboratory equipment on which capillary pressure curves were produced for sand samples based on porous plate method in individual coreholder with simultaneous measurement of electric resistivity. Main objective of the study was to find out the difference between capillary and electric properties produced in ambient and PT conditions.
机译:良好日志的饱和度评估和储备需要实验室测定毛细管和电性能,包括评估胶结指数(m)和饱和指数(n)。关键任务是提高基于实验室方法的储层岩石残留水饱和度的可靠性。其中一个解决方案是在模拟原位条件下进行研究,这将允许在估计累积中的储备时更准确地确定油饱和度,更正确地预测现场性能。 PT条件中的毛细管压力曲线行为对于了解整个烃色谱柱高度的水油饱和度分布机制至关重要。使用特殊的实验室设备解决了基于多孔板方法在单个芯板中产生的特殊实验室设备,同时测量电阻率。研究的主要目的是了解环境和PT条件下产生的毛细管和电性能之间的差异。

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