Title: Study on high resolution sequence stratigraphy and sedimentary microfacies of Dongying Formation,Kenxi Oil Field——Take fault block K71 as an example
Abstract: Based on core observation and well log analysis,guided by the theory of high-resolution sequence stratigraphy and traditional sedimentology,and with the application of base level cycle identification and classification,the isochronous stratigraphic framework of Dongying Formation in Kenxi oilfield has been established and the basal level cycles are compared.Besides,following the basic principle of from a point(sedimentary microfacies analysis from type well logging) to a line(multi wells correlation in the total area) and according to sedimentary microfacies analysis method used in reservoir description,the types and characteristics of sedimentary microfacies in Dongying reservoir of fault block K71 have been studied in detail.The results show that mainly lake-delta sedimentary system has been developed in Dongying Formation.The sedimentary facies can be subdivided into delta plain,delta front and predelta sedimentary subfacies,each of which has special compositions and characteristics.The identification of these characteristics is significant both for basal level cycle correlation and reservoir quality prediction.
Publication Year: 2007
Publication Date: 2007-01-01
Language: en
Type: article
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