Title: Application of sequence stratigraphy to early geological evaluation of carbonate gas reservoir development: an example from Luojiazhai oolitic bank gas reservoir in NE Sichuan Basin
Abstract: Oolite beach carbonate reservoir of Feixianguan Formation in Luojiazhai,NW Sichuan Basin is a platform edge facies sediment with massive thickness and uniform distribution.Based on the theory of sequence stratigraphy,the Feixianguan Formation was divided into five sequences and 10 system tracts.A sedimentation model was established for this area.As the main reservoir,platform edge Oolite beach facies is widely distributed in the high stand of Sequence Ⅰ,and in the sequences Ⅱ and Ⅲ.In Luojiazhai,there are two edge oolite beaches spreading from east to west.The west one is formed later than the east one.They have experienced diagenesis with different degrees.The east experienced 5 periods of dolomitization and fresh-water dissolution,while only slight dolomitization can be identified in the west.Reservoir properties in the east are superior to the west.
Publication Year: 2006
Publication Date: 2006-01-01
Language: en
Type: article
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Cited By Count: 1
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