文章基本信息

标题：Vertical resolution enhancement of petrophysical Nuclear Magnetic Resonance (NMR) log using ordinary kriging
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作者：Parisa Bagheripour ; Mojtaba Asoodeh ; Ayoob Nazarpour 等
期刊名称：Open Geosciences
电子版ISSN：2391-5447
出版年度：2013
卷号：5
期号：3
页码：450-456
DOI：10.2478/s13533-012-0142-7
语种：English
出版社：Walter de Gruyter GmbH & Co. KG
摘要：Abstract Nuclear Magnetic Resonance (NMR) logging provides priceless information about hydrocarbon bearing intervals such as free fluid porosity and permeability. This study focuses on using geostatistics from NMR logging instruments at high depths of investigation to enhance vertical resolution for better understanding of reservoirs. In this study, a NMR log was used such that half of its midpoint data was used for geostatistical model construction using an ordinary kriging technique and the rest of the data points were used for assessing the performance of the constructed model. This strategy enhances the resolution of NMR logging by twofold. Results indicated that the correlation coefficient between measured and predicted permeability and free fluid porosity is equal to 0.976 and 0.970, respectively. This means that geostatistical modeling is capable of enhancing the vertical resolution of NMR logging. This study was successfully applied to carbonate reservoir rocks of the South Pars Gas Field.
其他关键词：KeywordsenNuclear Magnetic ResonanceGeostatisticsOrdinary KrigingResolution EnhancementPetrophysics