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- W2375445457 abstract "The present paper used an advanced 3-D visible physical model to observe the whole water cresting process in heterogeneous reservoirs with bottom water,and further investigated its formation and development mechanisms.The results indicated that a well section located in a low-permeability area had no contribution to deliverability when the permeability contrast of adjacent sections of a horizontal well was greater than 4,and horizontal wells were affected only by the permeability contrast of adjacent well sections and there existed no cross influence of the permeability contrast among non-adjacent well sections,thus the real reason for a low deliverability of horizontal wells in very heterogeneous reservoirs with bottom water was identified.Based on the result of experiments,we proposed a strategy for developing horizontally heterogeneous reservoirs with bottom water: to exploit high permeability sections first and then low permeability sections and to block off high permeability sections before perforating low permeability sections.This designated a way to recover remaining oils from heterogeneous reservoirs.The bottom water cresting process of horizontally heterogeneous reservoirs was defined as: slantwise advance of bottom water and breakthrough at higher permeability sections,extension along a horizontal wellbore as bottom water occurs,then breakthrough at lower permeability sections with successive waterflooding.When the horizontal heterogeneity is distributed in a triple-step pattern along a horizontal well,the water cut of horizontal wells increases in a stepped-ascent mode,moreover,the step number is in accordance with the number of high permeability sections that are continuously distributed." @default.
- W2375445457 created "2016-06-24" @default.
- W2375445457 creator A5087486061 @default.
- W2375445457 date "2011-01-01" @default.
- W2375445457 modified "2023-09-24" @default.
- W2375445457 title "A 3-D visible physical experiment on horizontal wells of heterogeneous reservoirs with bottom water" @default.
- W2375445457 hasPublicationYear "2011" @default.
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