@Article{fdmp.2022.019486,
AUTHOR = {Xi Zhang, Changquan Wang, Hua Wu, Xu Zhao},
TITLE = {Application of New Water Flooding Characteristic Curve in the High Water-Cut Stage of an Oilfield},
JOURNAL = {Fluid Dynamics \& Materials Processing},
VOLUME = {18},
YEAR = {2022},
NUMBER = {3},
PAGES = {661--677},
URL = {http://www.techscience.com/fdmp/v18n3/46809},
ISSN = {1555-2578},
ABSTRACT = {The oil production predicted by means of the conventional water-drive characteristic curve is typically affected by
large deviations with respect to the actual value when the so-called high water-cut stage is entered. In order to
solve this problem, a new characteristic relationship between the relative permeability ratio and the average water
saturation is proposed. By comparing the outcomes of different matching methods, it is verified that it can well
reflect the variation characteristics of the relative permeability ratio curve. Combining the new formula with a
reservoir engineering method, two new formulas are derived for the water flooding characteristic curve in the
high water-cut stage. Their practicability is verified by using the production data of Mawangmiao and Xijiakou
blocks. The results show that the error between the predicted cumulative oil production and production data of
the two new water drive characteristic curves is less than the error between the B-type water drive characteristic
curve and the other two water drive characteristic curves. It is concluded that the two new characteristic curves
can be used to estimate more accurately the recoverable reserves, the final recovery and to estimate the effects of
water flooding},
DOI = {10.32604/fdmp.2022.019486}
}