黄陵X水平井区注水吞吐工艺参数优化

Optimization of water injection and huff process parameters in Huangling X horizontal well area

随着水平井开发的持续深入,到衰竭式开发后期,单井日产油不再能满足油田水平井经济日产油条件,即是开展注水吞吐采油的最佳时机。采用正交实验的研究方法,对周期注水量、注水速度、焖井时间和采液速度4个参数进行模拟优化,吞吐时机在模拟过程中根据研究区经济日产量进行标定,并引入最终含水率、开发总时长及平均日产油量等作为辅助指标进行不同方案的吞吐效果评价,分别优选出适合该模型的最优值,然后采用正交实验法对不同参数进行多因素组合模拟,找到最佳的参数组合。

With the continuous development of horizontal Wells, in the late stage of depleted development, the daily oil production of single Wells can no longer meet the economic daily oil production conditions of horizontal Wells in the oilfield, which is the best time to carry out water injection huff and puff oil recovery. The optimal value for the model was optimized, and then the optimum parameter combination was found by using the orthogonal experiment method to simulate the multi-factor combination of different parameters.