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带油环凝析气藏开发过程中,相态变化复杂,为准确描述此类油藏的开发过程,对不同开发方式的效果进行预测,我们开展了数值模拟,以SB区块喀拉扎带油环凝析气藏为例,运用蚂蚁追踪、变差函数分析等方法建立地质模型,通过开展储量拟合,PVT试验拟合、生产历史拟合调整模型,回归状态方程参数,在此基础上,预测了SB区块衰竭式开发、防水敏压裂改造开发、注水开发(不同注水位置、不同注采比)的最终采收率,结果表明措施改造、注水均能提高采收率,但注水开发效果最明显。
In order to accurately describe the development process of such reservoirs and predict the effect of different development modes during the development of the condensate gas reservoir with oil ring, we have carried out numerical simulation. Based on the SBR Taking the oil-ring condensate gas reservoir as an example, a geological model is established by means of ant tracing and variogram analysis, and the reserves are fitted and the PVT test is fitted to produce the historical matching adjustment model and regress the equation of state equation. Based on this, , Predicting the final recovery rate of SB block failure development, water-sensitive sensitive fracturing reconstruction, water injection development (different water injection locations, different injection-production ratio), the results show that measures to reform, water injection can improve oil recovery, but water injection Development of the most obvious effect.