鸭绿江盆地长白坳陷成藏条件分析及油气勘探前景
Petroleum geological condition and hydrocarbon exploration prospect of Changbai Depression in Yalu River Basin
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摘要: 鸭绿江盆地是一个典型的多旋回叠合型盆地，可能蕴藏着丰富的油气资源。文章以构造地质学和石油地质学为理论指导，以鸭绿江盆地长白坳陷为研究对象，从地质资料、地球物理资料入手，分析研究区构造特征及烃源岩、储盖层、油气运移等各项成藏关键条件，对该区资源潜力做出综合评价。研究表明，鸭绿江盆地长白坳陷的中部伸展沉降带地层层序完整，厚度大且稳定，局部构造发育，且均位于油气有利的指向区，具备油气勘探的有利前景，为首选的油气勘探有利区。Abstract: The Yalu River Basin is a typical multicycle and multiplex basin, which is potentially rich in oil and gas resources. Guided by the method of tectonic geology and petroleum geology and based on geophysical and geological data analysis, the authors emphatically studied Changbai Depression in Yalu River Basin and made scientific evaluation of its resource assessment according to investigating the petroleum geological condition and structure characteristics of the study area. The results show that the central extensional subsidence belt of Changbai Depression in Yalu River Basin with large thickness and continuous stratigraphic sequence seems to be the preferred favorable exploration area, which has various local structures in favorable directional zone of hydrocarbon migration.
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