Journal
INTERNATIONAL JOURNAL OF MODERN PHYSICS C
Volume 26, Issue 4, Pages -Publisher
WORLD SCIENTIFIC PUBL CO PTE LTD
DOI: 10.1142/S012918311550045X
Keywords
Transient flow; fractal porous media; starting pressure gradient; power-law fluid; pressure type curves
Funding
- National Science Fund for Distinguished Young Scholars of China [51125019]
- State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation (Southwest Petroleum University)
- National Natural Science Foundation of China [51474181, 41102080]
- Australia China Natural Gas Technology Partnership Fund Top Up Scholarships
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A transient flow model for power-law fluid in fractal porous media is derived by combining transient flow theory with the fractal properties of tortuous capillaries. Pressure changes of transient flow for power-law fluid in fractal porous media are related to pore fractal dimension, tortuosity fractal dimension and the power-law index. Additionally, the starting pressure gradient model of power-law fluid in fractal porous media is established. Good agreement between the predictions of the present model and that of the traditional empirical model is obtained, the sensitive parameters that influence the starting pressure gradient are specified and their effects on the starting pressure gradient are discussed.
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