致密砂岩储层,沉积环境,成岩作用,储层评价,勘探选区," /> 致密砂岩储层,沉积环境,成岩作用,储层评价,勘探选区,"/> tight sandstone reservoir , sedimentary environments, diagenesis, reservoire valuation, prospecting area,"/>
岩性油气藏 ›› 2017, Vol. 29 ›› Issue (2): 2835.doi: 10.3969/j.issn.1673-8926.2017.02.004
赵志刚1, 王飞宇2, 王洪波1, 王名巍1, 王浩3, 蓝宝峰1
ZHAO Zhigang1, WANG Feiyu2, WANG Hongbo1, WANG Mingwei1, WANG Hao3, LAN Baofeng1
摘要: 在油气勘探过程中,有机相的研究有助于定量表征烃源灶。为了更好地分析二连盆地赛汉塔拉凹陷的勘探前景,应用大量岩石热解数据对烃源岩有机相进行划分,实现了对烃源岩的分类评价,同时结合烷烃参数、生物标志物参数和镜质体反射率标定烃源岩有机质成熟度,进而实现了对烃源灶的定量表征。研究表明:赛汉塔拉凹陷自下而上发育阿尔善组、腾一段和腾二段3 套烃源岩,其中阿尔善组主要发育F 相烃源岩,腾一段和腾二段主要发育D/E 相烃源岩,兼有少量C 相烃源岩,垂向上从阿尔善组到腾一段和腾二段下部再到腾二段上部,显示出F 相—D/E 相— F 相的烃源岩分布特征;腾一段烃源灶为主力烃源灶,排烃强度为(500~3 500)万t/km2,阿尔善组烃源灶为次要烃源灶,排烃强度为(200~800)万t/km2。研究结果为二连盆地赛汉塔拉凹陷资源潜力分析提供了依据。
中图分类号:
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