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On Identifying Low Permeability Flood Reservoir with Ratio of Laterolog to Induction Resistivity
Author(s): 
Pages: 49-51
Year: Issue:  1
Journal: WELL LOGGING TECHNOLOGY

Keyword:  双侧向测井双感应测井低渗透率储层电阻率比值流体识别;
Abstract: 柴达木盆地低孔隙度低渗透率储层具有钙质含量高、孔喉半径小、储层骨架电阻率高的特点.储层无论是含油还是含水都具有较高电阻率,仅靠含油饱和度不足以准确判断储层所含流体性质.利用同时测量双侧向、双感应电阻率的有利条件,依据侧向串联测井受高阻影响反映地层骨架、感应测井并联测井受低阻影响明显反映流体性质的特点,确定每个储层的侧向电阻率与感应电阻率比值,建立电阻率比值与孔隙度交会图定量解释图版;结合孔隙度、含油饱和度定量解释图版,建立双图版定量解释标准,提高了低孔隙度低渗透率储层测井解释符合率.
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