In this paper , we emphasis p11 - p13 layers , which is high meander channel , low meander channel and braided stream deposit
2.
To meander channel , because the channel continuously moved , form duplicate fluvial sand bodies largely , and there are many area of non sandbodies or in fluvial sandbodies , there are some abandoned channel , all make the continuous of sandbodies poor upper the meander channel sandbodies , so remained oil is mainly distributed in sandbodies in fluvial channel , abandoned channel and non sandbodies area nearby
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