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Large-scale visual physical simulation of acid fingering
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نویسنده
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li x. ,yang z. ,zhao j. ,song r. ,wang y.
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منبع
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pakistan journal of statistics - 2014 - دوره : 30 - شماره : 6 - صفحه:1093 -1107
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چکیده
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Acid fingering is an unstable displacement that happens when low viscous acid displaces more viscous pad fluid during acid fracturing. fingering has a vital influence on the conductivity of acid fractures. the essence of this phenomenon is the instability of hydrodynamics. compared with mathematical modeling and software analysis,physical simulation is more direct-viewing. in this paper,a large-scale device is provided for the visual physical simulation of acid fingering. it reveals that fracture‟s surface temperature,acid concentration and pad fluid/acid viscosity ratio are the top three factors that affect acid fingering most after analyzing acid fingering‟s fractal dimension and multi-fractal spectrum under the main influence parameters such as acid concentration,pad fluid/acid viscosity ratio,acid injection flow rate,perforated intervals,and the fracture‟s surface temperature. the fractal dimension and the multi-fractal spectrum of acid fingering is 1.844~1.952 and 0.510~0.618,respectively. © 2014 pakistan journal of statistics.
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کلیدواژه
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Acid fingering; Acid fracturing; Fractal; Physical simulation
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آدرس
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state key lab of oil and gas reservoir geology and exploitation,southwest petroleum university,chengdu, China, state key lab of oil and gas reservoir geology and exploitation,southwest petroleum university,chengdu, China, state key lab of oil and gas reservoir geology and exploitation,southwest petroleum university,chengdu, China, state key lab of oil and gas reservoir geology and exploitation,southwest petroleum university,chengdu, China, state key lab of oil and gas reservoir geology and exploitation,southwest petroleum university,chengdu, China
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Authors
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