水平井双管注聚合理配注量的优化方法

Optimization method of rational polymer injection allocation rate for horizontal well dual pipe polymer injection

为研究水平井配注量问题,以聚合物波及效率最大为目标函数,以注入井、生产井的井底流压为约束条件,建立了水平井注聚-直井采油混合井网水平井双管注聚合理配注量优化的数学模型,给出了辽河油田水驱高246块高2-莲H16水平井的合理配注量。结果表明,根据上述方法计算出的水平井的合理配注量与油田实际配注量基本吻合,验证了此方法的正确性。

In order to study the problems of horizontal well polymer injection allocation rate, considering the maximum sweep efficiency as the object function, taking the bottom hole flowing pressure of the injection well and the production wells as the constraint conditions, the mathematical model of the optimization of the horizontal well dual pipe rational polymer injection allo-cation rate is established under the combined well pattern of horizontal well for polymer injection and vertical wells for oil ex-traction. The rational injection allocation rate of the G2-H16 horizontal well in waterflood Gao 246 Block of Liaohe Oilfield is given. The results indicate that the calculated rational injection allocation rate of the horizontal well is nearly identical to actual data in the oilfield, which proves the correctness of the method.