Abstract
Abstract. Beizhong Oilfield is one of the hydrocarbon enrichment zones in Hailar Basin, whose key layer Nan1 Formation mainly develops fan delta sedimentary type. On the basis of fine stratitraphic framework, this paper firstly analysized the petrologic characteristics of fan delta, and through observing and describing of coring wells, combined with the features of logging and sesmic facies, then identified and illustrated the main sedimentary microfacies characteristics of fan delta front of Nan1 Formation in study area. Based on the above, the sedimentary model of fan delta in study area was established. Finally, the reservoir characteristics of fan delta was analysized and summarized from the study of reservoir space type, sandstone patterns and superimposed styles.
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