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在油藏条件一定的情况下 ,可通过设计合理的开发参数来提高火驱开发的效果。该文以克拉玛依油田六东区为例 ,用数值模拟的方法研究了井网、井距、注气速度、燃烧方式 (干式燃烧或湿式燃烧 )、湿烧水气比及湿烧的时间等主要参数的影响。结果表明 ,反九点井网优于反七点与反五点 ,由空气油比与采收率确定的合理井距为 10 0m ,注气速度为 2× 10 4 m3 /d。湿式燃烧能提高采收率与降低空气油比 ,其合理的时机是燃烧距离达到 2 5 % ,水气比为1.5kg/m3 。
In the case of certain reservoir conditions, the development of fire flooding can be enhanced by designing reasonable development parameters. Taking six eastern districts of Karamay as an example, this paper studies the effects of well pattern, well spacing, gas injection velocity, combustion pattern (dry combustion or wet combustion), wet combustion moisture-gas ratio and wet combustion time by using numerical simulation method Effect of parameters. The results show that the anti-nine-point well pattern is better than the anti-seven-point and anti-five-point patterns. The reasonable well spacing determined by the air-oil ratio and the recovery factor is 10 0 m and the gas injection velocity is 2 × 10 4 m 3 / d. Wet combustion can improve oil recovery and reduce the air-oil ratio. The reasonable timing is that the combustion distance reaches 25% and the water-gas ratio is 1.5kg / m3.