地层倾角对底水锥进影响数值模拟研究

Numerical simulation of the impact of the stratal dip angle on bottom water coning

为了研究地层倾角对底水锥进的影响,以红花套倾斜底水油藏为例,建立倾斜底水油藏机理模型,利用ECLIPSE100黑油数值模拟器,对倾斜地层3种倾角条件下底水锥进的现象进行了数值模拟研究。模拟结果表明,随着地层倾角的增大,在生产过程中底水锥进的速度变大;在地层倾角小时,无水采油期短,含水上升速度慢,采出效果较好,地层倾角的存在使采收率偏低。

In order to study the influence of stratal dip angle on bottom water coning,Honghuatao inclined reservoir,which has bottom water and dipping strata in Jianghan oilfield,is used as an example in this paper,to establish a mechanism model of this reservoir. Using ECKIOSE 100 black oil simulator,the numerical simulation research was carried out under three different kinds of dip conditions. Simulation results show that,with the increase of dip,the bottom water coning runs faster during the production. When the dip angle is small,the waterless production period is short,and the water rates slow down,so it performs better. The existence of dip lowers the recovery rate.