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首页> 外文期刊>Petroleum Science and Technology >Effective Approach for Fractured Carbonate Reservoir Petrophysical Logs Interpretation in an Iranian Offshore Oil Field
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Effective Approach for Fractured Carbonate Reservoir Petrophysical Logs Interpretation in an Iranian Offshore Oil Field

机译：伊朗海上油田裂缝性碳酸盐岩储层物化测井解释的有效途径

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Due to the lack of information about the porosity exponent (m) from core experiments, the impossibility of comparison between the results and the core data, and, finally, inattentiveness to fractured intervals, the correct determination of the porosity exponent value in the calculation of water saturation and also the core-log correlation have generally been neglected. In this article, an analysis of the Mishrif Unit was carried out in two wells in order to properly calculate the water saturation and determine the best producing intervals. Based on fractured zones detection and the results of petrophysical evaluation in the calculation of shale volume and true matrix properties for these zones, accurate values of the porosity (matched with core data) were used to determine the porosity exponent. Hence, one of the advantages of this study is applying the method introduced simply for the fractured parts of the reservoir unit, in order to obtain the correct value for water saturation. Detecting proper producing intervals in the Mishrif Unit was executed using integrated evaluation of petrophysical data, geological data, and core data using a new method of shaly carbonate formation interpretation based on petrophysical log results. In this method,a statistical parameter, P(1/2), was used. The results from the application of the method show better interpretation and water saturation calculation using petrophysical logs of fractured shaly carbonate formations in combination with other available methods in the petroleum community.
机译：由于缺乏有关岩心实验的孔隙度指数（m）的信息，因此无法将结果与岩心数据进行比较，最后，由于对裂隙层的关注不够，因此无法正确计算孔隙度指数值。水饱和度以及核心对数相关性通常被忽略。在本文中，在两个井中对Mishrif装置进行了分析，以正确计算水饱和度并确定最佳生产间隔。基于裂缝区域的检测以及这些区域的页岩体积和真实基质性质的计算中的岩石物理评估结果，可使用准确的孔隙度值（与岩心数据匹配）来确定孔隙度指数。因此，这项研究的优势之一是将为储层单元裂缝部分简单介绍的方法应用于水饱和度的正确计算。在Mishrif单元中，通过综合评估岩石物理数据，地质数据和岩心数据，使用基于岩石物理测井结果的页岩碳酸盐岩地层解释的新方法，对适当的生产间隔进行了检测。在此方法中，使用了统计参数P（1/2）。该方法的应用结果表明，结合裂缝性碳酸盐岩地层的岩石物理测井曲线，结合石油界其他可用方法，可以更好地解释和计算含水饱和度。

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