多元介质辅助SAGD驱注采参数优化模拟研究

Simulation Study on Injection Production Parameters Optimization of SAGD Flooding Assisted by Multi media

针对蒸汽辅助重力泄油技术(SAGD)驱注采工艺实施过程中临工艺参数优化设计方法不完善的问题,采用Petrol软件建模,建立了多元介质辅助条件下的SAGD三维驱替分析模型。该模型综合考虑了地层特性、水平井特性和注采介质特性的影响,利用统计学分析方法,优化得到了最优驱替介质组合为N_2和C_(10)H_(22),最佳配比为1.5∶8.5,最佳注入速度为250 m^(3)/d,最佳注入温度为240℃,最佳注采比为0.8。

In view of the problem that the optimization design method of temporary process parameters is not perfect during the implementation of SAGD flooding injection production process,a three-dimensional displacement analysis model of SAGD under the auxiliary condition of multiple media is established by using Petrol software.This model comprehensively considers the influence of formation characteristics,horizontal well characteristics and injection production media characteristics.Using statistical analysis methods,the optimal displacement media combination is N2 and C10H22,and the optimal ratio is 1.5:8.5,The optimal injection rate is 250m^(3)/d,the optimal injection temperature is 240℃,and the optimal injection production ratio is 0.8.