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Basin Modeling of Buried History and Maturity History of Source Rock in Liaohe Basin
Author(s): 
Pages: 493-498
Year: Issue:  3
Journal: ACTA SEDIMENTOLOGICA SINICA

Keyword:  辽河盆地埋藏史TTI法镜质体反射率;
Abstract: 对辽河盆地烃源岩的埋藏史、热演化史建立了准三维模型(X、Y和纵向的地质层段,加时间)并编制了相应程序.模型采用回剥法并考虑了不整合情况以恢复各凹陷的埋藏史,根据古地温资料计算相应的TTI史,依据TTI-Ro关系式得出烃源岩Ro的演化过程,进而恢复成熟度演化史.模拟结果表明:东部凹陷发育了牛居地区和高力房-荣兴屯两个沉积中心,西部凹陷发育了台安地区和盘山-大清水沟两个沉积中心,大民屯凹陷发育了静安堡以北地区和荣胜堡两个沉积中心;东部凹陷沙三段、西部凹陷沙四段及沙三段、大民屯凹陷沙四段及沙三段至今均已全段或大范围进入生油门限,是辽河盆地主要生烃段.
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