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Characteristics of hydrocarbon migration in Fuyang oil layer in Daqing placanticline and its western area in Songliao Basin
Author(s): 
Pages: 21-26,31
Year: Issue:  6
Journal: ACTA PETROLEI SINICA

Keyword:  松辽盆地大庆长垣地区扶杨油层油气运移古流体势平衡深度法数值模拟;
Abstract: 对松辽盆地大庆长垣及其以西地区扶杨油层油气初次运移机理的分析表明,油气是在烃源层中超压的作用下沿着断层和裂缝运移到扶杨油层.根据约130口井声波测井资料,采用平衡深度法,恢复了青一段泥岩在最大埋深时期的过剩压力,探讨了油气初次运移的动力和方向.在此基础上,采用数值模拟的方法恢复了扶杨油层从嫩江组沉积末到现今的古流体势,并以明水组沉积末期为例,对流体势分布特征及油气二次运移方向进行了分析.以古流体势的分布为主要依据,综合生烃和排烃、输导体展布及盖层、圈闭发育特点等因素,预测出了扶杨油层的有利含油气区带.
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