Analysis of Main Controlling Factors for Lithologic Reservoirs of the Fuyu Oil Layer in Honggangbei Area

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Through the research on types and characteristics of lithologic reservoirs of Fuyu oil layer in Honggangbei area, Songliao Basin, such types of lithologic reservoirs is identified from up-dip pinch-out sandstone reservoirs, abandoned channel screened reservoirs, local-oscillation channel sandbody reservoirs, fault-lithologic reservoirs, fault-structural nose reservoirs. Its characteristics are complicated distribution of oil and water, rapid lateral change of reservoirs and monosandbody pool-controlling. Through fine dissection of developed reservoirs, the results show that genetic monosandbody traps are minim oil-controlling units, oil-accumulating units and main controlling factors for lithologic reservoirs of Honggangbei, which it is controlled by vertical layer and planar sedimentary microfacies. Spatial complicated superposition of vertical multi-layer and planar multi-branch monosandbody traps and mis-traps is essential reason of complicated distribution of oil and water.

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1744-1747

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June 2013

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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