烃源岩中残留死油量与运移门限值的讨论  

A DISTRIBUTION OF RESIDUAL DEAD OIL" CONTENT IN SOURCE ROCKS AND ITS MIGRATION THRESHOLD.

作　　者：王新洲[1] 周迪贤[1] 王学军[1] 

机构地区：[1]胜利石油管理局地质科学研究院

出　　处：《石油勘探与开发》1995年第2期17-23,共7页Petroleum Exploration and Development

摘　　要：本文从制约石油初次运移的因素入手，结合地层中的实证，揭示了残留死油的存在。源岩生成的油气中，不能向外运移的残留死油残留在源岩中，多余部分才是可运移的油，二者间的界限称为运移门限值。在此基础上对油源岩进行了分类，提出了可形成油藏的有效运移门限值的概念和划分标准，并指出它受控于有机质类型、有机碳含量和热演化程度。最后提出了死油量的估算方法和可供油气资源评价中实用参考的估算值。Startint from a research of factors controlling petroleum primary migration and combined with the examples observed in strata, this paper reveals the existence of residual dead oil in hydrocarbon source rocks. In the oiland gas generated, certain amount of oil can not migrated out of the source rock, and only the surplus part appears to be the migrated oil. A boundary between them is regarded as miglation threshold value. On this basis, oil source rocks catgorized, and the concept and division criteria of the effective migration threshold value for oil pool form ion are established. The threshold value is controlled by type of organic matter, organic carbon content and degree of evolution. At last, an evaluation method of dead oil content and estimated value available for reference in resource assessment are discussed.

关 键 词：生油岩 排烃 门限值 油气运移 残留死油量 

分 类 号：P618.130.1[天文地球—矿床学]