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- W2356947970 abstract "In the Yanmuxi oil region,the low resistivity reservoir is influenced by sedimentary facies,fractures,structures and lithologies,so it is difficult to use the logging information.Single sand thickness energy information is picked up by several logging methods to reflect the relatively high permeability's largest sedimentary energy and thickness divergence.On the basis of that,we find out the underwater braided channel to shallow channel sand body are the favorable sedimentary microfacies and distribution regions.And it overcomes the lapse about classifying the frame sedimentary facies due to the total sand thickness in several genetic similar thin sand layers or sand-clay layers.Through the statistic of diameter,natural gamma ray,density,neutrons,acoustic as well as lithologic character,porosity and sedimentary thickness,we set up the lower limit of the energy thickness of single permeability sand bed and picked up information of single permeability sand bed and other sedimentary energy.We analyzed the distribution region of underwater braided channel microfacies and the favorable shallow water channel facies and researched its relationship to reservoir distributions.Taking advantage of favorable sedimentary microfacies and their corresponding lower limit of the reservoir effective thickness,fine log re-evaluation is made for more than 60 wells of cretaceous system in this area.And newly discovered reservoir effective thickness is 32.0 m for cretaceous system K1s1 period,21.0 m for K1s2 period.This method provides a reliable basis for the oilfield potential reserves increment." @default.
- W2356947970 created "2016-06-24" @default.
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- W2356947970 date "2011-01-01" @default.
- W2356947970 modified "2023-09-28" @default.
- W2356947970 title "Evaluation of Favorable Microfacies Belts and Division of Effective Thickness of Reservoir by Logging Data" @default.
- W2356947970 hasPublicationYear "2011" @default.
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