【摘 要】
：
上白垩统土伦阶Madingo组烃源岩是下刚果盆地漂移期的主力海相烃源岩,有机岩石学和分子地化特征分析表明该套烃源岩主要包括海相内源型和海相混合生源型两种成因类型.本文采用微观沉积学研究方法,从古地理环境、陆源营养供给、古生产力和保存条件等方面入手,对下刚果盆地Madingo组烃源岩发育的控制因素开展了研究,明确了陆架内洼槽及其内部盐控微盆的局限古地理环境、陆源营养物质的间歇性悬浮供给方式是该盆地Madingo组优质海相烃源岩发育的主控因素;在此基础上,建立了具有陆源营养物质输入的河流-陆架内洼槽局限环境海
【机 构】
：
中国海洋石油国际有限公司北京 100028
论文部分内容阅读
上白垩统土伦阶Madingo组烃源岩是下刚果盆地漂移期的主力海相烃源岩,有机岩石学和分子地化特征分析表明该套烃源岩主要包括海相内源型和海相混合生源型两种成因类型.本文采用微观沉积学研究方法,从古地理环境、陆源营养供给、古生产力和保存条件等方面入手,对下刚果盆地Madingo组烃源岩发育的控制因素开展了研究,明确了陆架内洼槽及其内部盐控微盆的局限古地理环境、陆源营养物质的间歇性悬浮供给方式是该盆地Madingo组优质海相烃源岩发育的主控因素;在此基础上,建立了具有陆源营养物质输入的河流-陆架内洼槽局限环境海相烃源岩发育模式,指出陆架内洼槽是该盆地Madingo组优质海相烃源岩发育区,Madingo组有效生烃灶的展布控制了该盆地古近系—新近系油气田的差异分布,这种“源控成藏”的认识可有效指导该领域下一步勘探工作.
其他文献
地图符号在各GIS平台之间存在的差异导致符号交换、共享困难,本文以点状地图符号为基础,分析了ArcGIS与QGIS平台中常用地图符号的格式结构差异;通过Python编程设计符号转换方式,将TTF转换为SVG图片格式,使用标记组合的方法完成点符号制作.通过该方法转换的QGIS点状地图符号具备与ArcGIS相同的功能,转换后的符号能够满足QGIS的制图要求,实现了由ArcGIS到QGIS平台的点符号完整迁移,节省了人工制作符号所消耗的时间.本文提出的符号转换方法在实际应用中能够满足地震行业相关业务需求,在其他
The study and exploration practice of shale gas accumulation has focused on the static system comparison,key parameters analysis,reservoir characteristics,enrich-ment mode etc.However,the research on dynamic recovery from the original hydrocarbon generati
Due to discrepancies in pore structure,the productivity of shale gas reservoirs under different diagenesis stages varies greatly.This study discussed the controlling of sedimentation and diagenesis on shale pore structure in typical marine,transitional,an
Shale gas is a relatively clean-burning fossil fuel,produced by hydraulic fracturing.This technology may be harmful to the environment;therefore,environ-mentally friendly methods to extract shale gas have attracted considerable attention from researchers.
To quantitatively characterize the horizontal shale gas well productivity and identify the dominant productivity factors in the Weiyuan Shale Gas Field,Sichuan Basin,a practical productivity method involving multiple indicators was proposed to analyze the
Gas and water distribution is discontinuous in tight gas reservoirs,and a quantitative understanding of the factors controlling the scale and distribution of effective reservoirs is important for natural gas exploration.We used geological and geophysical
Marine-continental transitional shale is a potential energy component in China and is expected to be a realistic field in terms of increasing reserves and enhancing the natural gas production.However,the complex lithology,constantly changing depositional
The phase state of shale oil has a significant impact on its mobility.The mineral and organic matter in shale reservoirs play an important role in oil phase.This study attempts to evaluate the properties of shale oils in different phase states and to inve
墨西哥湾盆地为世界著名的含盐被动陆缘盆地,油气资源极为丰富,但是该区域受到复杂盐构造的影响,油气富集规律复杂,对盐相关油气输导体系及成藏模式认识不清,制约了油气勘探部署.基于三维地震、钻井、测井等资料,利用蚂蚁追踪等地球物理方法,研究了墨西哥湾南部Burgos盆地和Sureste盆地典型油气输导体系的静态组合样式及动态输导效率,明确了二者之间油气成藏模式的差异性.研究表明,Bur-gos盆地主要发育逆冲挤压断层,断层组合样式以“Y”型和反“Y”型、背冲型和叠瓦型为主;逆冲断层在中晚始新世—渐新世活动,与烃
Lacustrine shale oil resources in China are abundant,with remarkable exploration breakthroughs being achieved.Compared to marine shale oil in North America,efficient exploration of lacustrine shale oil is more difficult;thus,selecting favorable layer and