摘要
鄂尔多斯盆地蕴藏着丰富的石油、天然气和煤炭资源,是我国重要的能源基地。石油分布在侏罗系和三叠系地层中,侏罗系油藏受侵蚀河谷控制,三叠系的油藏受三角洲沉积体系控制;天然气分布在上、下古生界,河流-三角洲沉积体系控制上古生界天然气分布,古风化壳岩溶潜台控制了下古生界天然气的分布;煤分布在石炭-二叠系、三叠系和侏罗系,构造转折期和古气候控制了聚煤期。石油、天然气和煤在盆地中呈现规律性叠置,不同构造单元叠置的样式具有较大的差异性,为降低勘探成本,应进行石油、天然气和煤综合勘探思路。
Ordos basin is prolific in petroleum,natural gas,and coal resources,and is an important energy base in our country.The petroleum distributes in Jurassic to be subjected by the eroding river valley and Triassic to be subjected by depositional system of delta.The natural gas distributes in Upper Paleozoic to be controlled by the delta depositional system and Lower Paleozoic to be controlled by the fossil weathered crusts.The coal distribute in Permo-Carboniferous,Triassic and Jurassic,which has been controlled by the turning stage of tectonism and palaeokarsts.The distribution of oil,gas and coals present the regulation in the basin,but the styles that the dissimilarity structure unit to places have the bigger difference.In order to reduce the exploration cost,the petroleum,natural gas and coals should carry on comprehensive exploration.
出处
《科学技术与工程》
2010年第29期7123-7127,7132,共6页
Science Technology and Engineering
基金
国家油气重大专项课题(2008ZX05007-03)资助
关键词
石油
天然气
煤
鄂尔多斯盆地
成藏机理
分布规律
petroleum natural gas coal Ordos basin accumulation mechanism distributing regulation
