Daan Oilfield in Fuyu Reservoir of Ultra Low Permeability Sandstone Reservoir Seepage Parameter Technology
Journal Title: Scholars Bulletin - Year 2016, Vol 2, Issue 3
Abstract
Abstract: Oil-water relative permeability curve is used to describe two-phase fluid in reservoir porous media of non-linear percolation in the only way. Low permeability reservoir of oil and water relative permeability curves with high permeability reservoir of oil-water relative permeability curves of different features. Specific performance: the high bound water saturation, residual oil saturation is high, narrow range of oil-water two-phase flow, with the decrease of the saturation of oil phase, oil phase permeability decreases rapidly, and soon fell to zero, to form a high residual oil saturation and water flooding oil recovery rate is very low, and the aqueous phase effective permeability increases very slowly, resulting in low permeability reservoir well with increase of water content, the produced fluid index drop Low liquid production is very low. Fuyu oil layer in the study area mainly belong to low porosity and ultra low porosity and super low permeability non permeable reservoir, through the research found the oil-water two-phase flow characteristics is more complex, with middle high permeability reservoir and low permeability reservoir layer had greater differences. Keywords: relative permeability curve; high bound water saturation; permeability reservoir layer.
Authors and Affiliations
Meiling Jiang, Yunfeng Zhang
Keywords
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