2008•Journal of Oil and Gas TechnologyRequires access

Reservoir Sedimentary Micro-facies of Y9 and Relationship between Oil-bearing Capability in Ximawan Area

Zhigang Wen

Abstract

Through analyzing drilling and well logging data,the relationship between log facies and sedimentary microfacies of the Y9 oil formation in Ximawan Area was established,the type of sedimentary micro-facies and characteristics of areal distribution of sedimentary micro-facies were studied,and the relationship between the sedimentary micro-facies and the oil-bearing capability were analyzed.Study shows that channel,natural levee,crevasse splay and sedimentary micro-facies of interchannel can be discened in Y9 oil formation in Ximawan Area.And sandbody is well grown in the sedimentary micro-facies of channel,they are the main petroleum reservoirs.

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Key concepts: Facies, Sedimentary rock, Geology, Crevasse, Petrology, Geochemistry, Channel (broadcasting), Palaeogeography