The types of main sandstone are debris sandstone and debris arkose.
砂岩类型以岩屑砂岩、岩屑长石砂岩为主。
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Analysis results of a number of testing data indicated that: sandstone reservoir of Fu-Yang oil-bearing layer has lower composition maturity, mainly are feldspathic arenite and lithic arkose.
The reservoir lithology of oil bearing Huagang formation on Sudi structural belt in Xihu depression is mainly lithic arkose, feldspathic litharenite and feldspathic quartzitic sandstone.