稠油开采数值模拟研究  

Research of heavy oil production numerical simulation

作　　者：梁涛[1] 赵喆[1] 耿长波[1] 闫伟[1] 

机构地区：[1]中国石油勘探开发研究院,北京100083

出　　处：《高校应用数学学报（A辑）》2012年第3期325-339,共15页Applied Mathematics A Journal of Chinese Universities(Ser.A)

基　　金："大型油气田及煤层气开发"国家科技重大专项子课题(2008ZX05028-003)

摘　　要：针对稠油油藏使用水平井并且注蒸汽的开采方式,建立了相应的数学模型,模型考虑了油、气、水三个相态及所有组分,和由于稠油流体特性而引起的启动压力,对数学模型使用九点差分进行离散,用全隐式方法将数值模型线性化,给出了模型等效化的处理方法,将计算结果与模拟区块的实际生产数据做动态历史拟合,并提出了开发调整方案,取得了良好效果,该模型与其它方法做了比较,模型所得结果与实际产量的绝对值偏差为1.9%,是所有方法中最小的,模型与求解方法适用于稠油油藏注蒸汽水平井开采数值模拟。Aiming at heavy oil reservoirs with steam injection and horizontal wells, considering the threshold pressure, the authors build horizontal well mathematical models with 3 phases of oil, gas and water and all compositions. In even point-center grids system, nine-spot difference method is used to make mathematical models discrete. Full implicit method is used to linearize the non-linear formula group. This paper also shows the method of model transform and makes dynamic match between calculation results and factual production data in the target area. Matching effect is good. Adjustment scheme has effect. The absolute value error between this paper＇s method and actual production is 1.9%, which is the smallest among all methods. The models and solution methods in this paper are suitable for numerical simulation of heavy oil reservoir with steam injection.

关 键 词：稠油 开采 水平井 三维三相 九点差分 

分 类 号：O241[理学—计算数学]