浅水台地相碳酸盐岩的生烃潜力  

HYDROCARBON GENERATION POTENTIAL OF CARBONATE ROCKS IN SHALLOW PLATFORM

作　　者：郜建军[1] 李明宅[1] 胡惕麟[1] 戈葆雄[1] 

机构地区：[1]地质矿产部石油地质研究所,地质矿产部石油地质中心实验室

出　　处：《石油与天然气地质》1996年第2期128-133,共6页Oil & Gas Geology

基　　金："八五"国家重点科技攻关项目

摘　　要：浅水台地相碳酸盐岩是中国海相碳酸盐者最主要的沉积类型，其沉积环境有利于生物的繁殖，而不利于有机质的保存。由于沉积界面附近多为氧化环境，所以有机质在其沉积和浅埋阶段被大量分解，丰度较低，类型变差。虽然有机质来源主要为低等水生生物，但生烃潜力，特别是液态烃生成潜力较低，因此浅水台地相碳酸盐岩一般不能作为重要的油源岩而主要作为气源岩。The carbonate rocks of shallow platform factes is the primary sedimentation type in China's marine carbonate rocks. Its sedimental environment favoured the propagation of organisms but did not favour for the preservation of organic matter. Since sedimental boundary surface was near oxidizing milieu, large amount of organic matter was resolved during deposition and shallow burying process. This resulted in lower abundance and poor types of organic matter. Though the organic matter come from lower grade aquatic lives, hydrocarbon generation potential, especially liquid hydrocarbon generation potential is quite low. So it is suggested that, shallow platform carbonate rocks could not be considered as important oil source rocks but could be taken as gas source rocks.

关 键 词：台地相 碳酸盐岩 生烃潜力 气源岩 生气高峰 

分 类 号：P583[天文地球—岩石学]