Title: Shallow Lacustrine-Delta System Deposition Characteristics of Fuyang Oil Bed in Daqing Placanticline and Quan3 and Quan4 Member to Its East
Abstract: The deposition of Fuyang oil bed in Daqing placanticline and Quan3 and Quan4 Member to its east belongs to shallow lacustrine-delta system. Shallow lacustrine-delta facies can be divided into delta distributary plain subfacies and delta front subfacies. Delta distributary plain subfacies include 4 kinds of microfacies: overwater distributary channel, natural levee, crevasse spray, and flood plain mud; Delta front subfacies include 6 kinds of microfacies: underwater distributary channel, natural levee, crevasse spray, bay mud between distributary channels, mouth bar and frontal thin sand layer. Lacustrine facies can be divided into shore lacustrine subfacies, shallow lacustrine subfacies and reducing lacustrine. The distributary channel sand developed most, and it is favorable reservoir; muddy rock microfacies often form good reservoir and seal assemblage, which is favorable for the formation of lithologic trap hydrocarbon reservoir. Clear understanding of the evolution features of sedimentary facies and distribution rules of sand body microfacies is meaningful to sand body prediction, reserve estimation and lithologic trap hydrocarbon reservoir discovery.
Publication Year: 2005
Publication Date: 2005-01-01
Language: en
Type: article
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Cited By Count: 1
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