摘要
利用三维三相黑油模型，在充分进行历史拟合的基础上，分析了轮南油田轮２井区三迭系Ⅱ、Ⅲ油组开发状况；并对合采与分采、衰竭开采与注水开发及不同采油速度等情况下两个油组的产量贡献、含水率、压力、边底水活动规律等进行了深入研究。研究表明：Ⅱ、Ⅲ油组天然水驱能量相差悬殊，属于不同压力系统，且原油饱和压力差异很大，合采时产生严重的层间干扰，两个油组产能得不到合理利用；实行分采分注，开发效果好；该油藏可采用较高速度开采，但采油速度不宜超过３％。
Based on the full history matching and using 3D and 3P black oil model, the paper analyzed development situation of Ⅱ、Ⅲ oil bearing strata in Triassic system, two well blocks of Lunnan oilfield, and thoroughly researched production contribution, water cut, pressure and edge/bottom water active pattern of two oil bearing strata, in which combined production compares with respective production, depleted production with waterflood development and varying rates of production compare each other. Research showed that there is a wide gap of the natural water flooding energy between the Ⅱ、Ⅲ oil bearing strata. They belong in different pressure system, Ⅱ、Ⅲ oil bearing strata differ greatly in crude saturation pressure. There is serious interlayer interference during combined production. The productivities of two oil bearing strata cannot be fully used; Performing respective injection and production, development effect is good; This reservoir can operate with higher rate of production, but the rate is not suitable for more than 3%.
