Due to the lower composition maturity, compressive strength is weak, and compaction is strong. The low composition maturity are mainly responsible for poor reservoir properties.

泉四段砂岩颗粒成成份成熟度低，岩石的抗压性弱，压实作用强，低成份成熟度是导致储层物性差的重要原因；

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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.

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。

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In this trail, the relationship of chemical composition of vertebrae thorn and physical maturity of Chinese yellow cattle was analyzed.

本试验研究了中国黄牛生理成熟度与脊椎棘突化学组成变化的关系。

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