摘要
通过沥青砂岩与重质油热模拟实验方法,对塔里木盆地下古生界广泛赋存的沥青生烃特征与生烃潜力进行探讨。热模拟实验结果显示,沥青与重质油在热作用下均能生成烃类,表现出烃类裂解特征,生烃过程中既有气态烃也有液态烃生成;沥青砂岩样品、重质油样品与低成熟度一般品质的海相烃源岩生烃潜力大体相当。塔里木盆地下古生界存在沥青生烃证据,但实际成藏贡献尚需进一步油气地球化学证据支持。
Hydrocarbon generation characteristics and potential of bitumen widespread in Lower Paleozoic in the Tarim Basin are studied by thermal simulation experiments of bitumen sandstone and black oil. According to the result of thermal simulation experiments, both bitumen and black oil can generate hydrocarbon when heated, characterized by hydrocarbon cracking. Not only gas but also liquid hydrocarbon could be generated. There is no obvious difference in hydrocarbon generation potential among bitumen sandstone, black oil and low maturity marine carbonate source rock. Some phenomena of hydrocarbon generation by bitumen has been observed in Lower Paleozoic in the Tarim Basin, but still needs geochemical evidences.
出处
《石油实验地质》
CAS
CSCD
北大核心
2009年第4期373-378,共6页
Petroleum Geology & Experiment
基金
原中国石化西部新区勘探指挥部科研项目《塔里木盆地环阿一满坳陷区动态成藏与勘探策略研究》(XBKY0303)的资助
关键词
沥青
生烃特征
生烃潜力
塔里木盆地
bitumen
hydrocarbon generation characteristics
hydrocarbon generation potential
Tarim Basin
