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VOLCANIC LITHOFACIES AND THEIR PETROPHYSICAL PROPERTIES IN ABEI OILFELD

Wang Zhixin Zhao Chenlin Liu Menghui (Department of Petroleum Exploration)  
Volcanic rock is one of the reservoir rocks,difficult to discover.This paper discusses the litho-facies characteristics of lava (one group of volcanic rocks) from the observation of cores and sections.The study shows that in a classical lava bed the microfacies of the top self-breaking lava,the upper and lower vesicular and amygdaloidal lava are the favorable reservoir rocks for oil and gas.But the massive lava in the middle of the bed is nonporous and holds no fluid.
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