底水押し型油層におけるウォーターコーニング挙動に関する考察
1988 年 53 巻 6 号 p. 517-524
詳細
1988 年 53 巻 6 号 p. 517-524
The oil reservoir, which is one of the main reservoir in the company, has strong bottom water drive mechanism. With the increase in cumulative oil production from this reservoir, production water cut rapidly increased in several wells caused by water coning. This study was carried out to investigate the effect of water coning on the production performance.
Using numerical reservoir simulator, the production oil and water rates were estimated on the actual well. The production rate was also calculated using the simplified method reported by KUO et al. The comparison of these two calculation results was studied.
It is concluded that the critical rate, for which the initial low water production rate is maintained, was about 1, 500B/D. Secondly water shut-off job was very effective in order to restrain water cut in this studied well.
