储层岩石类型主要为岩屑质长石砂岩和长石砂岩组成。

The major rock types were lithical arkose and arkose.

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大量化验测试资料分析结果表明，扶杨油层砂岩储层成份成熟度较低，岩石类型以岩屑质长石砂岩和长石质岩屑砂岩为主。

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.

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研究区内长4 5储层的岩石类型主要为长石砂岩或岩屑质长石砂岩。

The rock types of Chang 4 5 in this region are mostly arkose or lithic arkose sandstone.

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