摘要
对辽河油田曙光欢喜岭潜山带沙三段（Ｅｓ３） 和沙四段（Ｅｓ４） 典型的未成熟源岩样品进行了高温高压干体系的生排烃热压模拟实验。研究结果表明：３００ ～４００ ℃（Ｒｏ ＝０ ．３３ ％ ～１ ．３０ ％ ） 为该区域烃源岩的主要生排烃阶段；沙四段具有更好的生排油潜力，可能是曙光－ 欢喜岭潜山带较好的烃源岩；生排烃作用对排出油和残留油中生物标志物的组成具有明显的影响，在油／ 源对比时应特别注意。
Hydrocarbon generation and expulsion from the typical immature source rocks of S3 and S4 members of the Shuguang Huanxiling buried hill zone in the Liaohe oilfield were simulated by experiment at high pressures and temperatures. The results indicate that the heating temperature between 300 ℃and 400 ℃(Ro=0.33%～1.30%) is the main stage of hydrocarbon generation and expulsion. The source rock of S4 member has a higher hydrocarbon generation potential. Therefore, it may be the better source rock in this region. In addition, the experimental results show that the hydrocarbon generation and expulsion has obvious effects on the composition of biomarkers in the expelled oils and the residual oils. So it should be especially paid attentions on oil/source correlation.
出处
《地球化学》
CAS
CSCD
北大核心
1999年第3期257-264,共8页
Geochimica
基金
中国科学院重大项目!(编号:971122)
广东省自然科学基金!( 编号:960501)
关键词
模拟实验
残留油
辽河油田
烃源岩
生排烃作用
simulating experiment, hydrocarbon generation, hydrocarbon expulsion, expelled oil, residual oil, Liaohe oilfield
