Open Access
ARTICLE
Investigation of the Effect of Dynamic Capillary Pressure on Waterflooding in Extra Low Permeability Reservoirs
Tian Shubao1, Lei Gang1, He Shunli1
1 China University of Petroleum (Beijing), Petroleum Engineering Key Laboratory of Ministry of
Education. Chang ping Beijing 102249.
Structural Longevity 2013, 9(2), 105-117. https://doi.org/10.3970/sl.2013.009.105
Abstract
The dynamic capillary pressure is one of the important factors affecting the two phase percolation mechanism of waterflooding in extra low permeability reservoir. It is crucial to understand the effect of dynamic capillary pressure
on oil displacement process in order to improve the waterflooding effectiveness.
In this paper the dynamic capillary pressure effect was investigated quantitatively
and a numerical flow model was built, in which the dynamic capillary pressure is
considered. The effects of dynamic capillary pressure and water injection rate on
the waterflooding effectiveness were analyzed. The results show that the dynamic
capillary pressure has a significant influence on the oil displacement effectiveness.
The bigger the dynamic capillary pressure, the more adverse waterflooding effectiveness is obtained. The water injection rate will influence the change of fluid
saturation in the reservoir, which leads to the different dynamic capillary pressure
effect. There is an optimum water injection rate which causes the minimum dynamic capillary pressure and percolation resistance.
Keywords
Cite This Article
Shubao, T., Gang, L., Shunli, H. (2013). Investigation of the Effect of Dynamic Capillary Pressure on Waterflooding in Extra Low Permeability Reservoirs.
Structural Longevity, 9(2), 105–117. https://doi.org/10.3970/sl.2013.009.105