海相油气地质2015，Vol.20Issue(4)：73-80,8.DOI:10.3969/j.issn.1672-9854.2015.04.010
含泥质灰岩储层的测井流体识别要要要以中东YL-DS油田为例含泥质灰岩储层的测井流体识别要要要以中东YL-DS油田为例
Logging Identification of Fluids in Argilliferous Limestone Reservoirs in YL-DS Oil Field, Middle East
摘要
Abstract
Argilliferous limestone reservoirs usually are of high argillaceous content (3%~8%) but low logging resistiv-ity values in YL-DS Oil Field,Middle East.Interpreted as high water saturation by the conventional logging method,they are likely mistakably judged as aquifers according to the evaluation standard for the pure carbonate reservoirs.A simple available method of correctly identifying what the fluids are in argilliferous limestone reservoirs according to spectral log data and other calculations is put forward and successfully applied in this oil field.The method is:(1) ana-lyze clay types by spectral log data and estimate density of dry clay;(2) calculate porosity of pure mudstone by the simplified mudstone model,and then calculate the porosity related with argillaceous bound water in the argilliferous limestone reservoirs; (3) correct argillaceous bound water saturation with the water saturation calculated by normal Archieˊs formula to obtain water saturation in apparent pure limestone; and (4) comprehensively identify fluid types by the corrected pure limestone saturation and the standard cross-plot of pure limestone reservoirs.关键词
石灰岩储层/储层流体/流体识别/测井解释Key words
Argilliferous limestone/Limestone reservoir/Reservoir fluid/Fluid identification/Logging interpretation分类
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刘忠明,吴见萌,葛祥,冷义..含泥质灰岩储层的测井流体识别要要要以中东YL-DS油田为例含泥质灰岩储层的测井流体识别要要要以中东YL-DS油田为例[J].海相油气地质,2015,20(4):73-80,8.
