Shanbei Fuxian exploration area is located in south-east of
Erdos Basin ,the structure is not development and the oil &gas is
controlled by avail sedimentary facies. So the studying result of
sedimentary facies is the main basis in exploration project.
According to the synthetical analyzing result of core sample ,
logging and laboratory testing data ,chang 6 sandstone reservoir in
the exploration area developed delta front subfacies sandstone.
The characteristics of sedimentary has three-division , The
sedimentary facies in east and west area are delta under water
river course facies sandstone , in the middle is lowerlake
subfacies. Easten delta sandstone is distributed bigger extent ,
bigger thickness and is the avail zone of oil &gas accumulation.
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