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中东地区XT油田碳酸盐岩储层低阻成因机理研究

Journal of Oil and Gas Technology(2013)

Cited 23|Views10
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Abstract
中东地区XT油田碳酸盐岩储层的油层与水层的电阻率基本在1~3Ω.m左右,属于低阻碳酸盐岩储层。为了准确划分储层及识别流体性质,开展了碳酸盐岩储层低阻成因研究。通过铸体薄片、压汞、X-衍射、水分析资料和数值模拟研究,分析了泥质含量、束缚水饱和度、地层水矿化度、导电矿物对碳酸盐岩低电阻率的影响,得出在高地层水矿化度的前提下,泥质含量和导电矿物对电阻率降低的影响很小,高束缚水饱和度和高地层水矿化度是研究区碳酸盐岩储层低阻的主要原因。
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Key words
formation water salinity,low resistivity reservoir,carbonate reservoir,numerical simulation,irreducible water saturation
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