【摘要】 中国已发现的生物气藏分布于第四系—白垩系,埋深小于2000m,生物气藏类型比较简单。生物气生成和聚集在未成熟源岩发育段,储层物性好。生物气成藏类型可划分为3种:低温—同生成岩—浅埋型,中温—早成岩A期—中深埋型,高温—早成岩B期—深埋型。更多还原

【Abstract】 Biogenic gas pools discovered in China are stored in Quaternary-Cretaceous. Their pool types are simple and the buried depth is less than 2000m. The biogenic gas is generated and accumulated during immature stages, with good reservoir quality. The pool-forming types of biogenic gas can be divided into three types: low temperature-syngenetic diagenesis-shalow burial type,middle temperature-early diagenesis A stage-medium burial type and high temperature-early diagenesis B stage-deep burial type.更多还原