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The Application of Dielectric Log in Erlian Basin
Author(s): 
Pages: 158-160
Year: Issue:  2
Journal: WELL LOGGING TECHNOLOGY

Keyword:  介电测井介电常数相移角含油性评价二连油田;
Abstract: 在中低孔隙度、低矿化度地层水、岩石结构变化大的复式复杂砂岩油藏中,含油性评价精度一直是二连地区测井解释的难题.介绍了介电测井在二连地区油水层识别方面的应用效果,建立了介电测井解释标准.47 MHz介电反映的主要为过渡带中的剩余油气,剩余油的多少与地层孔隙结构、地层压力、钻井液压力等因素有关.同样孔隙条件下,介电测井在中低渗透率储层中的应用效果比高渗透率储层中效果好.实际应用中必须分区域、分层组建立解释标准.实际资料证明,47 MHz介电测井在地层电阻率大于5 Ω·m、泥浆电阻率大于1 Ω·m时测量精度较高.
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