2011•Journal of Chongqing University of Science and TechnologyRequires access
Accumulation Analysis of Lithologic Oil Reservoir in Jing'an Oilfield,Ordos Basin
Bin Li
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Abstract
Jingan oilfield of Ordos Basin is the most typical lithologic oil reservoir,which has characteristics of simple structure,low porosity,low permeability and strong heterogeneity.The lithologic oil reservoir is mainly controlled by tectonic sedimentary setting,developing range of source rock,cap beds and so on.Therefore,the source rock is the material basic for lithologic oil reservoir,sedimentary setting shall control the lithologic-stratigraphic trap,and the cap beds shall influence the developing scope of the lithologic oil reservoir.The paper proposes three accumulation models in the area.And the structural lithologic reservoir is mainly in sag region,sandstone lens and pinch-out of updip sandstone reservoir are mainly in the flank of gentle slope and anticlinal belt.