双水平井SAGD挤液预处理启动水力连通模型
发布时间：2019-05-19 06:56
【摘要】：为了定量获取注采井间连通及扩容信息,以风城油田SAGD挤液预处理启动为例,采用有限元软件ABAQUS计算扩容过程中储层变形及渗流特性,通过监测压力,结合德雷克-普拉格力学本构模型,按照比值定义法、权重思想和乘法原则建立了扩容过程中的水力连通模型,依靠数据分析中回归方法得出了扩容半径的计算公式。结果表明,风城SAGD超稠油储层的水力连通系数为0.6~0.8,系数越大,扩容区域越大,后期预热蒸汽用量越少。模型预测与实际监测数据吻合效果好,相对误差小于5%,说明建立的水力连通模型是有效的。
[Abstract]:In order to quantitatively obtain the information of connectivity and capacity expansion between injection and production wells, taking the start-up of SAGD extrusion pretreatment in Fengcheng Oilfield as an example, the finite element software ABAQUS is used to calculate the reservoir deformation and seepage characteristics in the process of capacity expansion, and the pressure is monitored. According to the ratio definition method, the weight idea and the multiplication principle, the hydraulic connectivity model in the process of capacity expansion is established according to the Drake-Prager mechanical constitutive model, and the formula for calculating the expansion radius is obtained by using the regression method in the data analysis. The results show that the hydraulic connectivity coefficient of Fengcheng SAGD super heavy oil reservoir is 0.6 鈮，
本文编号：2480493
[Abstract]:In order to quantitatively obtain the information of connectivity and capacity expansion between injection and production wells, taking the start-up of SAGD extrusion pretreatment in Fengcheng Oilfield as an example, the finite element software ABAQUS is used to calculate the reservoir deformation and seepage characteristics in the process of capacity expansion, and the pressure is monitored. According to the ratio definition method, the weight idea and the multiplication principle, the hydraulic connectivity model in the process of capacity expansion is established according to the Drake-Prager mechanical constitutive model, and the formula for calculating the expansion radius is obtained by using the regression method in the data analysis. The results show that the hydraulic connectivity coefficient of Fengcheng SAGD super heavy oil reservoir is 0.6 鈮，
本文编号：2480493
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